Teledyne M300E Users Manual M200E Operator's

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Operation Manual

MODEL 300E FAMILY
CARBON MONOXIDE ANALYZERS
(Includes M300E, M300EM)

© TELEDYNE ADVANCED POLLUTION INSTRUMENTATION
9480 CARROLL PARK DRIVE
SAN DIEGO, CA 92121-5201
USA
Toll-free Phone:
Phone:
Fax:
Email:
Website:

800-324-5190
858-657-9800
858-657-9816
api-sales@teledyne.com
http://www.teledyne-api.com/

04288D DCN 5752
24 June 2011

Teledyne API –Operation Manual - Model 300E Family CO Analyzers

Safety Messages

SAFETY MESSAGES
Warning and cautionary messages are provided for the purpose of avoiding risk of personal injury or
instrument damage. These important safety messages and associated safety alert symbols are found
throughout this manual; the safety symbols are also located inside the instrument(s). It is imperative
that you pay close attention to these messages, the descriptions of which are as follows:

WARNING: Electrical Shock Hazard

HAZARD: Strong oxidizer

GENERAL WARNING/CAUTION: Read the accompanying
message for specific information.

CAUTION: Hot Surface Warning

Technician Symbol: All operations marked with this symbol are to
be performed by qualified maintenance personnel only.
DO NOT TOUCH: Touching some parts of the instrument without
protection or proper tools could result in damage to the part(s)
and/or the instrument.
Electrical Ground: This symbol inside the instrument marks the
central safety grounding point for the instrument.

CAUTION – GENERAL SAFETY HAZARD
This instrument should only be used for the purpose and in the manner described in this
manual. If you use this instrument in a manner other than that for which it was intended,
unpredictable behavior could ensue with possible hazardous consequences.
Never use any gas analyzer to sample combustible gas(es).
Note
Technical Assistance regarding the use and maintenance of this or any other Teledyne API product can
be obtained by contacting Teledyne API’s Customer Service Department:
Telephone: 800-324-5190
Email: api-customerservice@teledyne.com
or by accessing various service options on our website at http://www.teledyne-api.com/.

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Safety Messages

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

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Teledyne API –Operation Manual - Model 300E Family CO Analyzers

Warranty

WARRANTY
WARRANTY POLICY (02024D)
Prior to shipment, T-API equipment is thoroughly inspected and tested. Should equipment failure occur, T-API
assures its customers that prompt service and support will be available.
COVERAGE
After the warranty period and throughout the equipment lifetime, T-API stands ready to provide on-site or in-plant
service at reasonable rates similar to those of other manufacturers in the industry. All maintenance and the first
level of field troubleshooting are to be performed by the customer.
NON-API MANUFACTURED EQUIPMENT
Equipment provided but not manufactured by T-API is warranted and will be repaired to the extent and according
to the current terms and conditions of the respective equipment manufacturer’s warranty.
GENERAL
During the warranty period, T-API warrants each Product manufactured by T-API to be free from defects in
material and workmanship under normal use and service. Expendable parts are excluded.
If a Product fails to conform to its specifications within the warranty period, API shall correct such defect by, in
API's discretion, repairing or replacing such defective Product or refunding the purchase price of such Product.
The warranties set forth in this section shall be of no force or effect with respect to any Product: (i) that has been
altered or subjected to misuse, negligence or accident, or (ii) that has been used in any manner other than in
accordance with the instruction provided by T-API, or (iii) not properly maintained.
THE WARRANTIES SET FORTH IN THIS SECTION AND THE REMEDIES THEREFORE ARE EXCLUSIVE
AND IN LIEU OF ANY IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR PARTICULAR
PURPOSE OR OTHER WARRANTY OF QUALITY, WHETHER EXPRESSED OR IMPLIED. THE REMEDIES
SET FORTH IN THIS SECTION ARE THE EXCLUSIVE REMEDIES FOR BREACH OF ANY WARRANTY
CONTAINED HEREIN. API SHALL NOT BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL
DAMAGES ARISING OUT OF OR RELATED TO THIS AGREEMENT OF T-API'S PERFORMANCE
HEREUNDER, WHETHER FOR BREACH OF WARRANTY OR OTHERWISE
TERMS AND CONDITIONS
All units or components returned to Teledyne API should be properly packed for handling and returned freight
prepaid to the nearest designated Service Center. After the repair, the equipment will be returned, freight
prepaid.

CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD) handling and packing instructions
and Return Merchandise Authorization (RMA) procedures when returning parts for repair or calibration
may void your warranty. For anti-ESD handling and packing instructions please refer to “Packing
Components for Return to Teledyne API’s Customer Service” in the Primer on Electro-Static
Discharge section of this manual, and for RMA procedures please refer to our Website at
http://www.teledyne-api.com under Customer Support > Return Authorization.

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Teledyne API –Operation Manual - Model 300E Family CO Analyzers

About This Manual

ABOUT THIS MANUAL
This manual is comprised of multiple documents, in PDF format, as listed below.
Part No.

Rev

Name/Description

04288

M300E/EM Manual

04906

Menu Tree and Software Documentation, L.8 (as Appendix A of this manual)

05362

Spare Parts List, M300E (in Appendix B of this manual)

05424

Spare Parts List, M300EM (in Appendix B of this manual)

04302

Recommended Spares Stocking Levels, M300E (in Appendix B of this manual)

04834

Recommended Spares Stocking Levels, M300EM (in Appendix B of this manual)

009600400

Expendables Kit, M300E/M300EM (in Appendix B of this manual)

040360100 A

Spares Kit, M300E/M300EM (1 unit) (in Appendix B of this manual)

04305

Warranty/Repair Request Questionnaire (as Appendix C of this manual)

03297

PCA, 03296, IR Photodetector Preamp and Sync Demodulator (In Appendix D of this manual)

03632

PCA, 03631, 0-20mA driver (in Appendix D of this manual)

03976

PCA, 03975, Keyboard & Display Driver (in Appendix D of this manual)

04354

Schematic, PCA 04003, Press/Flow (in Appendix D of this manual)

05703

PCA, 05702, Motherboard, E-Series Gen 4 (in Appendix D of this manual)

04089

PCA, 04088, Opto Pickup Interface (in Appendix D of this manual)

04136

PCA, 04135 Rev A, M300E Relay (in Appendix D of this manual)

04216

Interconnect Drawing - M300E SNs >=100 (in Appendix D of this manual)

04217

Interconnect List - M300E SNs >=100 (in Appendix D of this manual)

04259

PCA, 04258, Keyboard & Display Driver (in Appendix D of this manual)

04468

PCA, 04467, Analog Output Isolator, / Series Resistor (in Appendix D of this manual)

NOTE
We recommend that this manual be read in its entirety before making any attempt made to operate the
instrument.

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Revision History

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

REVISION HISTORY
2010 June 08
Document
M300E/M300EM Manual

PN
Rev
04288 D

DCN
5752















Change Summary
Combined “Title” and “Text” portions of manual
into one document for single part number.
Created front matter content to include Safety
Messages, Warranty, About This Manual (incl.
manual BOM), and Revision History sections.
Added cautionary messages to avoid invalidating
warranty.
Corrected bp filter descrip. from 4.3 μm to 4.7 μm
Updated setup instructions for RS-232 multidrop
and RS-485 communications (Sections 8.2, 8.3)
Updated CPU description and replacement
procedures to fit the E-series CPU.
Updated instructions/added illustration for current
(I) conversion configuration.
Clarified description of the GFC operation
(Section 1.2).
Added Pressure Flow schematic to Appendix D.
Added Elec Test calibration (Section 13.5.6.2).
Clarified password behavior (Section 6.5.3).
Added MODBUS Quick Setup instr. (Section 8.5).

2011, June 08, M300E/M300EM Manual, PN04288 Rev D (initial capture)
For the purpose of capturing this manual’s construct at Rev D when the addition of this new Revision
History section was initiated, the following list shows the current documents comprising this manual. Any
future changes to this manual will be recorded in this Revision History section; the preceding About This
Manual section will be updated as well.
Part No.

Rev

Name/Description

04288

M300E/EM Manual

04906

Menu Tree and Software Documentation, L.8 (as Appendix A of this manual)

05362

Spare Parts List, M300E (in Appendix B of this manual)

05424

Spare Parts List, M300EM (in Appendix B of this manual)

04302

Recommended Spares Stocking Levels, M300E (in Appendix B of this manual)

04834

Recommended Spares Stocking Levels, M300EM (in Appendix B of this manual)

009600400

Expendables Kit, M300E/M300EM (in Appendix B of this manual)

040360100 A

Spares Kit, M300E/M300EM (1 unit) (in Appendix B of this manual)

04305

Warranty/Repair Request Questionnaire (as Appendix C of this manual)

03297

PCA, 03296, IR Photodetector Preamp and Sync Demodulator (In Appendix D of this manual)

03632

PCA, 03631, 0-20mA driver (in Appendix D of this manual)

03976

PCA, 03975, Keyboard & Display Driver (in Appendix D of this manual)

04354

Schematic, PCA 04003, Press/Flow (in Appendix D of this manual)

04288D DCN5752

Teledyne API –Operation Manual - Model 300E Family CO Analyzers

Revision History

2011, June 08, M300E/M300EM Manual, PN04288 Rev D (initial capture)
05703

PCA, 05702, Motherboard, E-Series Gen 4 (in Appendix D of this manual)

04089

PCA, 04088, Opto Pickup Interface (in Appendix D of this manual)

04136

PCA, 04135 Rev A, M300E Relay (in Appendix D of this manual)

04216

Interconnect Drawing - M300E SNs >=100 (in Appendix D of this manual)

04217

Interconnect List - M300E SNs >=100 (in Appendix D of this manual)

04259

PCA, 04258, Keyboard & Display Driver (in Appendix D of this manual)

04468

PCA, 04467, Analog Output Isolator, / Series Resistor (in Appendix D of this manual)

04288D DCN5752

vii

Revision History

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

This page intentionally left blank.

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Table of Contents

TABLE OF CONTENTS
PART I – GENERAL INFORMATION .................................................................................... 21
1. INTRODUCTION ................................................................................................................ 23
1.1. M300E FAMILY Overview.............................................................................................................................23
1.2. Additional Documentation .............................................................................................................................24
1.2.1. Using This Manual .................................................................................................................................25

2. SPECIFICATIONS AND APPROVALS .............................................................................. 27
2.1. Specifications ................................................................................................................................................27
2.2. EPA Equivalency Designation ......................................................................................................................28
2.3. TUV DESIGNATION .....................................................................................................................................29
2.4. CE Mark Compliance ....................................................................................................................................29
2.4.1. Emissions Compliance...........................................................................................................................29
2.4.2. Safety Compliance.................................................................................................................................29

3. GETTING STARTED .......................................................................................................... 31
3.1. M300E/EM Analyzer Layout .........................................................................................................................31
3.2. Unpacking the M300E/EM Analyzer .............................................................................................................37
3.2.1. Ventilation Clearance.............................................................................................................................38
3.3. Electrical Connections...................................................................................................................................38
3.3.1. Power Connection..................................................................................................................................38
3.3.2. Analog Output Connections ..................................................................................................................39
3.3.3. Connecting the Status Outputs..............................................................................................................39
3.3.4. Connecting the Control Inputs ...............................................................................................................41
3.3.5. Connecting the Serial Ports ...................................................................................................................42
3.3.6. Connecting to a LAN or the Internet ......................................................................................................42
3.3.7. Connecting to a Multidrop Network........................................................................................................42
3.4. Pneumatic Connections ................................................................................................................................42
3.4.1. Calibration Gases ..................................................................................................................................42
3.4.1.1. Zero Air ...........................................................................................................................................42
3.4.1.2. Span Gas........................................................................................................................................43
3.4.2. Pneumatic Connections to M300E/EM Basic Configuration..................................................................44
3.4.2.1. Sample Gas Source .......................................................................................................................45
3.4.2.2. Calibration Gas Sources ................................................................................................................45
3.4.2.3. Input Gas Venting...........................................................................................................................46
3.4.2.4. Exhaust Outlet ................................................................................................................................46
3.5. Initial Operation .............................................................................................................................................46
3.5.1. Startup....................................................................................................................................................47
3.5.2. Warm Up ................................................................................................................................................48
3.5.3. Warning Messages ................................................................................................................................48
3.5.4. Functional Check ...................................................................................................................................50
3.6. Initial Calibration of the M300E/EM...............................................................................................................51
3.6.1. Interferents for CO2 Measurements .......................................................................................................51
3.6.2. Initial Calibration Procedure for M300E/EM Analyzers without Options................................................51
3.6.2.1. Verifying the M300E/EM Reporting Range Settings ......................................................................52
3.6.2.2. Dilution Ratio Set Up ......................................................................................................................53
3.6.2.3. Set CO Span Gas Concentration ...................................................................................................54
3.6.2.4. Zero/Span Calibration.....................................................................................................................55
3.6.3. O2 Sensor Calibration Procedure...........................................................................................................56
3.6.4. CO2 Sensor Calibration Procedure ........................................................................................................56

4. FREQUENTLY ASKED QUESTIONS ................................................................................ 57
4.1. FAQ’s ............................................................................................................................................................57
4.2. Glossary ........................................................................................................................................................58

5. OPTIONAL HARDWARE AND SOFTWARE ..................................................................... 61
5.1. External Pumps (OPTions 10A-10E, 11, 13) ................................................................................................61
5.2. Rack Mount Kits (OPT 20 to OPT 23)...........................................................................................................61

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5.3. Carrying Strap/Handle (OPT 29)...................................................................................................................62
5.4. Current Loop Analog Outputs (Option 41) ....................................................................................................62
5.4.1. Converting Current Loop Analog Outputs to Standard Voltage Outputs...............................................63
5.5. Expendables and Spares Kits (Options 42A, 45) .........................................................................................64
5.6. Calibration Valves (Options 50A, 50B, 50E, 50H) ........................................................................................64
5.6.1. General Information Related to all Valve Options..................................................................................64
5.6.1.1. Gas Flow Rate................................................................................................................................64
5.6.1.2. Valve Control ..................................................................................................................................64
5.6.2. Zero/Span Valve (Option 50A)...............................................................................................................64
5.6.2.1. Internal Pneumatics (OPT 50A) .....................................................................................................65
5.6.2.2. Pneumatic Set Up (OPT 50A) ........................................................................................................66
5.6.2.3. Input Gas Venting...........................................................................................................................66
5.6.2.4. Exhaust Outlet ................................................................................................................................66
5.6.3. Zero/Span/Shutoff Valve (Option 50B) ..................................................................................................67
5.6.3.1. Internal Pneumatics (OPT 50B) .....................................................................................................67
5.6.3.2. Pneumatic Set Up (OPT 50B) ........................................................................................................68
5.6.4. Zero/Span Valve with Internal CO Scrubber (Option 50H)....................................................................69
5.6.4.1. Internal Pneumatics (OPT 50H) .....................................................................................................69
5.6.4.2. Pneumatic Set Up (OPT 50H) ........................................................................................................70
5.6.5. Zero/Span/Shutoff with Internal Zero Air Scrubber (Option 50E) ..........................................................71
5.6.5.1. Internal Pneumatics (OPT 50E) .....................................................................................................71
5.6.5.2. Pneumatic Set Up (OPT 50E) ........................................................................................................72
5.7. Communication Options................................................................................................................................73
5.7.1. RS-232 Modem Cable (Option 60A)......................................................................................................73
5.7.2. RS-232 Multidrop (Option 62) ................................................................................................................73
5.7.3. Ethernet (Option 63A) ............................................................................................................................74
5.7.4. Ethernet + Multidrop (OPT 63C) ............................................................................................................75
5.8. Second Gas Sensors ....................................................................................................................................75
5.8.1. Oxygen Sensor (Option 65A).................................................................................................................75
5.8.1.1. Theory of Operation - Paramagnetic measurement of O2 ..............................................................75
5.8.1.2. Operation within the M300E/EM Analyzer......................................................................................76
5.8.1.3. Pneumatic Operation of the O2 Sensor ..........................................................................................76
5.9. Carbon Dioxide Sensor (Option 67A) ...........................................................................................................77
5.9.1. CO2 Sensor Ranges and Specifications ................................................................................................77
5.9.2. Theory of Operation ...............................................................................................................................77
5.9.2.1. NDIR measurement of CO2 ............................................................................................................77
5.9.2.2. Operation within the M300E/EM Analyzer......................................................................................78
5.9.2.3. Pneumatic Operation of the CO2 Sensor .......................................................................................78
5.9.2.4. Electronic Operation of the CO2 Sensor.........................................................................................79
5.10. CONCENTRATION ALARM RELAY (Option 61) .......................................................................................80
5.11. Special Features .........................................................................................................................................82
5.11.1. Dilution Ratio Option ............................................................................................................................82
5.11.2. Maintenance Mode Switch...................................................................................................................82
5.11.3. Second Language Switch ....................................................................................................................82

PART II – OPERATING INSTRUCTIONS .............................................................................. 83
6. BASIC OPERATION .......................................................................................................... 85
6.1. Overview of Operating Modes ......................................................................................................................85
6.2. Sample Mode ................................................................................................................................................86
6.3. Warning Messages .......................................................................................................................................88
6.4. Calibration Mode ...........................................................................................................................................89
6.5. Setup MODE .................................................................................................................................................90
6.5.1. SETUP  CFG: Configuration Information ...........................................................................................91
6.5.2. SETUP  ACAL: Automatic Calibration................................................................................................91
6.5.3. SETUP  PASS: Password Feature.....................................................................................................92
6.5.4. SETUP  CLK: Setting the M300E/EM Analyzer’s Internal Clock .......................................................95
6.5.4.1. Setting the internal Clock’s Time and Day .....................................................................................95
6.5.4.2. Adjusting the Internal Clock’s Speed..............................................................................................96

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Table of Contents

6.6. SETUP  RNGE: Analog Output Reporting Range Configuration ..............................................................97
6.6.1. Physical Range versus Analog Output Reporting Ranges ....................................................................97
6.6.2. Analog Output Ranges for CO Concentration .......................................................................................98
6.6.3. Reporting Range Modes ........................................................................................................................99
6.6.3.1. RNGE  MODE  SNGL: Configuring the M300E/EM Analyzer for SINGLE Range Mode..... 100
6.6.3.2. RNGE  MODE  DUAL: Configuring the M300E/EM Analyzer for DUAL Range Mode ........ 101
6.6.3.3. RNGE  MODE  AUTO: Configuring the M300E/EM Analyzer for AUTO Range Mode........ 103
6.6.4. SETUP  RNGE  UNIT: Setting the Reporting Range Units of Measure ...................................... 104
6.6.5. SETUP RNGE  DIL: Using the Optional Dilution Ratio Feature .................................................. 105

7. ADVANCED FEATURES ................................................................................................. 107
7.1. SETUP  IDAS: Using the Data Acquisition System (iDAS) .................................................................... 107
7.1.1. IDAS Status ........................................................................................................................................ 107
7.1.2. IDAS Structure .................................................................................................................................... 108
7.1.2.1. iDAS Channels ............................................................................................................................ 108
7.1.3. Default iDAS Channels ....................................................................................................................... 109
7.1.4. SETUP DAS VIEW: Viewing iDAS Channels and Individual Records ....................................... 111
7.1.5. SETUP DAS EDIT: Accessing the iDAS Edit Mode ................................................................... 112
7.1.5.1. Editing iDAS Data Channel Names............................................................................................. 113
7.1.5.2. Editing iDAS Triggering Events ................................................................................................... 114
7.1.5.3. Editing iDAS Parameters............................................................................................................. 115
7.1.5.4. Editing Sample Period and Report Period................................................................................... 117
7.1.5.5. Report Periods in Progress When Instrument Is Powered Off.................................................... 118
7.1.5.6. Editing the Number of Records ................................................................................................... 119
7.1.5.7. RS-232 Report Function.............................................................................................................. 120
7.1.5.8. Enabling/Disabling the HOLDOFF Feature ................................................................................. 121
7.1.5.9. The Compact Report Feature...................................................................................................... 122
7.1.5.10. The Starting Date Feature......................................................................................................... 122
7.1.6. Disabling/Enabling Data Channels ..................................................................................................... 122
7.1.7. Remote iDAS Configuration................................................................................................................ 123
7.1.7.1. iDAS Configuration Using APICOM ............................................................................................ 123
7.1.7.2. iDAS Configuration Using Terminal Emulation Programs........................................................... 124
7.2. SETUP  MORE  VARS: Internal Variables (VARS) ............................................................................ 125
7.3. SETUP  MORE  DIAG: Using the Diagnostics Functions.................................................................. 127
7.3.1. Accessing the Diagnostic Features .................................................................................................... 128
7.4. Using the M300E/EM Analyzer’s Analog Outputs. .................................................................................... 129
7.4.1. Accessing the Analog Output Signal Configuration Submenu ........................................................... 129
7.4.2. Analog Output Voltage / Current Range Selection ............................................................................. 131
7.4.3. Calibration of the Analog Outputs....................................................................................................... 133
7.4.3.1. Enabling or Disabling the AutoCal for an Individual Analog Output............................................ 133
7.4.3.2. Automatic Calibration of the Analog Outputs .............................................................................. 134
7.4.3.3. Individual Calibration of the Analog Outputs ............................................................................... 136
7.4.3.4. Manual Calibration of the Analog Outputs Configured for Voltage Ranges................................ 137
7.4.3.5. Manual Adjustment of Current Loop Output Span and Offset .................................................... 139
7.4.4. Turning an analog output Over-Range Feature ON/OFF ................................................................... 142
7.4.5. Adding a Recorder Offset to an analog output ................................................................................... 143
7.4.6. Selecting a Test Channel Function for Output A4 .............................................................................. 144
7.4.7. AIN Calibration.................................................................................................................................... 146
7.5. SETUP MORE  ALRM: Using the Gas Concentration Alarms ........................................................... 147
7.5.1. Setting the M300E Concentration Alarm Limits .................................................................................. 147

8. REMOTE OPERATION .................................................................................................... 149
8.1. SETUP  MORE COMM: Using the Analyser’s Communication Ports ................................................ 149
8.1.1. RS-232 DTE and DCE Communication.............................................................................................. 149
8.1.2. COMM Port Default Settings............................................................................................................... 149
8.1.3. COMM Port Baud Rate ....................................................................................................................... 151
8.1.4. COMM Port Communication Modes ................................................................................................... 152
8.1.5. COMM Port Testing ............................................................................................................................ 154
8.1.6. Machine ID .......................................................................................................................................... 155

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8.1.7. Terminal Operating Modes ................................................................................................................. 156
8.1.7.1. Help Commands in Terminal Mode............................................................................................. 156
8.1.7.2. Command Syntax ........................................................................................................................ 157
8.1.7.3. Data Types .................................................................................................................................. 157
8.1.7.4. Status Reporting.......................................................................................................................... 158
8.1.7.5. COMM Port Password Security................................................................................................... 159
8.2. Multidrop RS-232 Set Up ........................................................................................................................... 160
8.3. RS-485 Configuration of COM2 ................................................................................................................. 162
8.4. Remote Access via the Ethernet................................................................................................................ 164
8.4.1. Ethernet Card COM2 Communication Modes and Baud Rate ........................................................... 164
8.4.2. Configuring the Ethernet Interface Option using DHCP ..................................................................... 165
8.4.3. Manually Configuring the Network IP Addresses ............................................................................... 167
8.4.4. Changing the Analyzer’s HOSTNAME ............................................................................................... 170
8.5. MODBUS SetUp ........................................................................................................................................ 171
8.5.1. Remote Access by Modem ................................................................................................................. 172
8.6. Using the M300E/EM with a Hessen Protocol Network............................................................................. 175
8.6.1. General Overview of Hessen Protocol................................................................................................ 175
8.6.2. Hessen COMM Port Configuration ..................................................................................................... 175
8.6.3. Activating Hessen Protocol ................................................................................................................. 176
8.6.4. Selecting a Hessen Protocol Type...................................................................................................... 177
8.6.5. Setting The Hessen Protocol Response Mode................................................................................... 178
8.6.6. Hessen Protocol Gas List Entries ....................................................................................................... 179
8.6.6.1. Gas List Entry Format and Definitions......................................................................................... 179
8.6.6.2. Editing or Adding HESSEN Gas List Entries............................................................................... 180
8.6.6.3. Deleting HESSEN Gas List Entries ............................................................................................. 181
8.6.7. Setting Hessen Protocol Status Flags ................................................................................................ 182
8.6.8. Instrument ID Code............................................................................................................................. 183
8.7. APICOM Remote Control Program............................................................................................................ 184

9. CALIBRATION PROCEDURES ....................................................................................... 185
9.1. Before Calibration ...................................................................................................................................... 186
9.1.1. Required Equipment, Supplies, and Expendables ............................................................................. 186
9.1.2. Calibration Gases ............................................................................................................................... 186
9.1.2.1. Zero Air ........................................................................................................................................ 186
9.1.2.2. Span Gas..................................................................................................................................... 187
9.1.2.3. Traceability .................................................................................................................................. 187
9.1.3. Data Recording Devices ..................................................................................................................... 187
9.2. Manual Calibration Checks and Calibration of the M300E/EM Analyzer in its Base Configuration .......... 188
9.2.1. Setup for Basic Calibration Checks and Calibration........................................................................... 188
9.2.2. Performing a Basic Manual Calibration Check ................................................................................... 190
9.2.3. Performing a Basic Manual Calibration .............................................................................................. 191
9.2.3.1. Setting the Expected Span Gas Concentration........................................................................... 191
9.2.3.2. Zero/Span Point Calibration Procedure....................................................................................... 192
9.3. Manual Calibration with Zero/Span Valves ................................................................................................ 193
9.3.1. Setup for Calibration Using Valve Options ......................................................................................... 193
9.3.2. Manual Calibration Checks with Valve Options Installed ................................................................... 195
9.3.3. Manual Calibration Using Valve Options ............................................................................................ 196
9.3.3.1. Setting the Expected Span Gas Concentration........................................................................... 196
9.3.3.2. Zero/Span Point Calibration Procedure....................................................................................... 197
9.3.3.3. Use of Zero/Span Valve with Remote Contact Closure .............................................................. 198
9.4. Automatic Zero/Span Cal/Check (AutoCal) ............................................................................................... 198
9.4.1. SETUP  ACAL: Programming and AUTO CAL Sequence.............................................................. 201
9.4.1.1. AutoCal with Auto or Dual Reporting Ranges Modes Selected .................................................. 203
9.5. CO Calibration Quality ............................................................................................................................... 204
9.6. Calibration of the M300E/EM’s Electronic Subsystems............................................................................. 205
9.6.1. Dark Calibration Test .......................................................................................................................... 205
9.6.2. Pressure Calibration ........................................................................................................................... 206
9.6.3. Flow Calibration .................................................................................................................................. 207
9.6.4. Electrical Test Calibration ................................................................................................................... 208
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9.7. Calibration of Optional Sensors ................................................................................................................. 209
9.7.1. O2 Sensor Calibration Procedure........................................................................................................ 209
9.7.1.1. O2 Calibration Setup.................................................................................................................... 209
9.7.1.2. Set O2 Span Gas Concentration.................................................................................................. 210
9.7.1.3. Activate O2 Sensor Stability Function.......................................................................................... 211
9.7.1.4. O2ZERO/SPAN CALIBRATION................................................................................................... 212
9.7.2. CO2 Sensor Calibration Procedure ..................................................................................................... 213
9.7.2.1. CO2 Calibration Setup ................................................................................................................. 213
9.7.2.2. Set CO2 Span Gas Concentration: .............................................................................................. 213
9.7.2.3. Activate CO2 Sensor Stability Function ....................................................................................... 214
9.7.2.4. CO2 Zero/Span Calibration.......................................................................................................... 215

10. EPA CALIBRATION PROTOCOL ................................................................................. 217
10.1. Calibration Requirements......................................................................................................................... 217
10.1.1. Calibration of Equipment - General Guidelines ................................................................................ 217
10.1.2. Calibration Equipment, Supplies, and Expendables......................................................................... 218
10.1.2.1. Data Recording Device.............................................................................................................. 218
10.1.2.2. Spare Parts and Expendable Supplies...................................................................................... 218
10.1.3. Recommended Standards for Establishing Traceability................................................................... 219
10.1.4. Calibration Frequency....................................................................................................................... 220
10.1.5. Level 1 Calibrations versus Level 2 Checks ..................................................................................... 220
10.2. ZERO and SPAN Checks ........................................................................................................................ 221
10.2.1. Zero/Span Check Procedures .......................................................................................................... 222
10.2.2. Precision Check ................................................................................................................................ 222
10.3. Precisions Calibration .............................................................................................................................. 222
10.3.1. Precision Calibration Procedures ..................................................................................................... 223
10.4. Auditing Procedure................................................................................................................................... 223
10.4.1. Calibration Audit................................................................................................................................ 223
10.4.2. Data Reduction Audit ........................................................................................................................ 223
10.4.3. System Audit/Validation .................................................................................................................... 224
10.5. Dynamic Multipoint Calibration Procedure............................................................................................... 224
10.5.1. Linearity test...................................................................................................................................... 224
10.6. References............................................................................................................................................... 226

PART III – TECHNICAL INFORMATION ............................................................................. 227
11. THEORY OF OPERATION ............................................................................................ 229
11.1. Measurement Method .............................................................................................................................. 229
11.1.1. Beer’s Law ........................................................................................................................................ 229
11.2. Measurement Fundamentals ................................................................................................................... 229
11.2.1. Gas Filter Correlation........................................................................................................................ 230
11.2.1.1. The GFC Wheel......................................................................................................................... 231
11.2.1.2. The Measure Reference Ratio .................................................................................................. 232
11.2.1.3. Summary Interference Rejection............................................................................................... 233
11.3. Pneumatic Operation ............................................................................................................................... 234
11.4. Flow Rate Control .................................................................................................................................... 235
11.4.1.1. Critical Flow Orifice.................................................................................................................... 235
11.4.2. Particulate Filter ................................................................................................................................ 236
11.4.3. Pneumatic Sensors........................................................................................................................... 236
11.4.3.1. Sample Pressure Sensor .......................................................................................................... 236
11.4.3.2. Sample Flow Sensor ................................................................................................................. 236
11.5. Electronic Operation................................................................................................................................. 237
11.5.1. Overview ........................................................................................................................................... 237
11.5.2. Central Processing Unit (CPU) ......................................................................................................... 239
11.5.3. Optical Bench & GFC Wheel ............................................................................................................ 240
11.5.3.1. Temperature Control ................................................................................................................. 240
11.5.3.2. IR Source................................................................................................................................... 240
11.5.3.3. GFC Wheel................................................................................................................................ 240
11.5.3.4. IR Photo-Detector...................................................................................................................... 242
11.5.4. Synchronous Demodulator (Sync/Demod) Assembly ...................................................................... 242

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

11.5.4.1. Overview.................................................................................................................................... 242
11.5.4.2. Signal Synchronization and Demodulation ............................................................................... 243
11.5.4.3. Sync/Demod Status LED’s ........................................................................................................ 244
11.5.4.4. Photo-Detector Temperature Control ........................................................................................ 244
11.5.4.5. Dark Calibration Switch ............................................................................................................. 244
11.5.4.6. Electric Test Switch ................................................................................................................... 245
11.5.5. Relay Board ...................................................................................................................................... 245
11.5.5.1. Heater Control ........................................................................................................................... 245
11.5.5.2. GFC Wheel Motor Control:........................................................................................................ 245
11.5.5.3. Zero/Span Valve Options .......................................................................................................... 245
11.5.5.4. IR Source................................................................................................................................... 245
11.5.5.5. Status LED’s.............................................................................................................................. 246
11.5.5.6. I2C Watch Dog Circuitry............................................................................................................. 246
11.5.6. MotherBoard ..................................................................................................................................... 247
11.5.6.1. A to D Conversion ..................................................................................................................... 247
11.5.6.2. Sensor Inputs ............................................................................................................................ 247
11.5.6.3. Thermistor Interface .................................................................................................................. 247
11.5.6.4. Analog Outputs.......................................................................................................................... 248
11.5.6.5. Internal Digital I/O...................................................................................................................... 248
11.5.6.6. External Digital I/O..................................................................................................................... 248
11.5.7. I2C Data Bus ..................................................................................................................................... 249
11.5.8. Power Supply/ Circuit Breaker.......................................................................................................... 249
11.5.9. Communication Interface .................................................................................................................. 251
11.5.10. Front Panel Interface ...................................................................................................................... 252
11.5.10.1. Analyzer Status LED’s............................................................................................................. 252
11.5.10.2. Keyboard ................................................................................................................................. 252
11.5.10.3. Display..................................................................................................................................... 253
11.5.10.4. Keyboard/Display Interface Electronics................................................................................... 253
11.5.11. Software Operation ......................................................................................................................... 256
11.5.12. Adaptive Filter ................................................................................................................................. 256
11.5.13. Calibration - Slope and Offset......................................................................................................... 257
11.5.14. Measurement Algorithm.................................................................................................................. 257
11.5.15. Temperature and Pressure Compensation..................................................................................... 257
11.5.16. Internal Data Acquisition System (iDAS) ........................................................................................ 257

12. MAINTENANCE SCHEDULE & PROCEDURES .......................................................... 259
12.1. Maintenance Schedule............................................................................................................................. 259
12.2. Predicting Failures Using the Test Functions .......................................................................................... 263
12.3. Maintenance Procedures ......................................................................................................................... 264
12.3.1. Replacing the Sample Particulate Filter............................................................................................ 264
12.3.2. Rebuilding the Sample Pump ........................................................................................................... 264
12.3.3. Performing Leak Checks................................................................................................................... 265
12.3.3.1. Vacuum Leak Check and Pump Check..................................................................................... 265
12.3.3.2. Pressure Leak Check ................................................................................................................ 265
12.3.4. Performing a Sample Flow Check .................................................................................................... 266
12.3.5. Cleaning the Optical Bench .............................................................................................................. 266
12.3.6. Cleaning Exterior Surfaces of the M300E/EM .................................................................................. 266

13. TROUBLESHOOTING & REPAIR................................................................................. 267
13.1. General Troubleshooting.......................................................................................................................... 267
13.1.1. Fault Diagnosis with WARNING Messages...................................................................................... 268
13.1.2. Fault Diagnosis with TEST Functions............................................................................................... 270
13.1.3. DIAG  SIGNAL I/O: Using the Diagnostic Signal I/O Function..................................................... 273
13.1.4. Internal Electronic Status LED’s ....................................................................................................... 274
13.1.4.1. CPU Status Indicator ................................................................................................................. 274
13.1.4.2. Sync Demodulator Status LED’s ............................................................................................... 275
13.1.4.3. Relay Board Status LED’s......................................................................................................... 276
13.2. Gas Flow Problems.................................................................................................................................. 278
13.2.1. M300E/EM Internal Gas Flow Diagrams .......................................................................................... 278

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13.2.2. Typical Sample Gas Flow Problems................................................................................................. 282
13.2.2.1. Flow is Zero ............................................................................................................................... 282
13.2.2.2. Low Flow ................................................................................................................................... 282
13.2.2.3. High Flow................................................................................................................................... 282
13.2.2.4. Displayed Flow = “Warnings” .................................................................................................... 283
13.2.2.5. Actual Flow Does Not Match Displayed Flow ........................................................................... 283
13.2.2.6. Sample Pump ............................................................................................................................ 283
13.3. Calibration Problems................................................................................................................................ 283
13.3.1. Miscalibrated..................................................................................................................................... 283
13.3.2. Non-Repeatable Zero and Span....................................................................................................... 284
13.3.3. Inability to Span – No SPAN Key...................................................................................................... 284
13.3.4. Inability to Zero – No ZERO Key ...................................................................................................... 284
13.4. Other Performance Problems .................................................................................................................. 285
13.4.1. Temperature Problems ..................................................................................................................... 285
13.4.1.1. Box or Sample Temperature ..................................................................................................... 285
13.4.1.2. Bench Temperature................................................................................................................... 285
13.4.1.3. GFC Wheel Temperature .......................................................................................................... 286
13.4.1.4. IR Photo-Detector TEC Temperature........................................................................................ 286
13.4.2. Excessive Noise................................................................................................................................ 287
13.5. Subsystem Checkout ............................................................................................................................... 288
13.5.1. AC Mains Configuration .................................................................................................................... 288
13.5.2. DC Power Supply.............................................................................................................................. 288
13.5.3. I2C Bus .............................................................................................................................................. 289
13.5.4. Keyboard/Display Interface............................................................................................................... 289
13.5.5. Relay Board ...................................................................................................................................... 290
13.5.6. Sensor Assembly .............................................................................................................................. 291
13.5.6.1. Sync/Demodulator Assembly .................................................................................................... 291
13.5.6.2. Electrical Test ............................................................................................................................ 291
13.5.6.3. Opto Pickup Assembly .............................................................................................................. 292
13.5.6.4. GFC Wheel Drive ...................................................................................................................... 292
13.5.6.5. IR Source................................................................................................................................... 292
13.5.6.6. Pressure/Flow Sensor Assembly .............................................................................................. 293
13.5.7. Motherboard...................................................................................................................................... 294
13.5.7.1. A/D Functions ............................................................................................................................ 294
13.5.7.2. Test Channel / Analog Outputs Voltage .................................................................................... 294
13.5.7.3. Analog Outputs: Current Loop................................................................................................... 295
13.5.7.4. Status Outputs........................................................................................................................... 296
13.5.7.5. Control Inputs – Remote Zero, Span......................................................................................... 297
13.5.8. CPU................................................................................................................................................... 297
13.5.9. RS-232 Communications .................................................................................................................. 297
13.5.9.1. General RS-232 Troubleshooting.............................................................................................. 297
13.5.9.2. Troubleshooting Analyzer/Modem or Terminal Operation ........................................................ 298
13.5.10. The Optional CO2 Sensor ............................................................................................................... 298
13.6. Repair Procedures ................................................................................................................................... 299
13.6.1. Repairing Sample Flow Control Assembly ....................................................................................... 299
13.6.2. Removing/Replacing the GFC Wheel............................................................................................... 300
13.6.3. Checking and Adjusting the Sync/Demodulator, Circuit Gain (CO MEAS) ..................................... 302
13.6.3.1. Checking the Sync/Demodulator Circuit Gain........................................................................... 302
13.6.3.2. Adjusting the Sync/Demodulator, Circuit Gain .......................................................................... 303
13.6.4. Disk-On-Module Replacement Procedure ........................................................................................ 304
13.7. Technical Assistance ............................................................................................................................... 304

14. A PRIMER ON ELECTRO-STATIC DISCHARGE......................................................... 305
14.1. How Static Charges are Created ............................................................................................................. 305
14.2. How Electro-Static Charges Cause Damage........................................................................................... 306
14.3. Common Myths About ESD Damage ...................................................................................................... 307
14.4. Basic Principles of Static Control ............................................................................................................. 307
14.4.1. General Rules ................................................................................................................................... 307
14.4.2. Basic anti-ESD Procedures for Analyzer Repair and Maintenance ................................................. 309
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Teledyne API – Technical Manual - Model 300E Family CO Analyzers
14.4.2.1. Working at the Instrument Rack ................................................................................................ 309
14.4.2.2. Working at an Anti-ESD Work Bench........................................................................................ 309
14.4.2.3. Transferring Components from Rack to Bench and Back......................................................... 310
14.4.2.4. Opening Shipments from Teledyne API’ Customer Service ..................................................... 310
14.4.2.5. Packing Components for Return to Teledyne API’s Customer Service .................................... 311

LIST OF APPENDICES
APPENDIX A - VERSION SPECIFIC SOFTWARE DOCUMENTATION (Revision L.8)
APPENDIX A-1: M300E/EM Software Menu Trees
APPENDIX A-2: Setup Variables For Serial I/O
APPENDIX A-3: Warnings and Test Functions
APPENDIX A-4: M300E/EM Signal I/O Definitions
APPENDIX A-5: M300E/EM iDAS Functions
APPENDIX A-6: Terminal Command Designators
APPENDIX A-7: MODBUS Register
APPENDIX B - M300E/EM SPARE PARTS LIST
APPENDIX C - REPAIR QUESTIONNAIRE - M300E
APPENDIX D - ELECTRONIC SCHEMATICS

LIST OF FIGURES
Figure 3-1:
Figure 3-2:
Figure 3-3:
Figure 3-4:
Figure 3-5:
Figure 3-6:
Figure 3-7:
Figure 3-8:
Figure 3-9:
Figure 3-10:
Figure 3-11:
Figure 5-1:
Figure 5-2:
Figure 5-3:
Figure 5-4:
Figure 5-5:
Figure 5-6:
Figure 5-7:
Figure 5-8:
Figure 5-9:
Figure 5-10:
Figure 5-11:

xvi

Front Panel Layout.......................................................................................................................31
Rear Panel Layout .......................................................................................................................32
Internal Layout – M300E..............................................................................................................33
Internal Layout – M300EM with CO2 and O2 Sensor Option........................................................34
Optical Bench Layout...................................................................................................................35
M300E/EM Internal Gas Flow (Basic Configuration) ...................................................................36
Analog Output Connector ............................................................................................................39
Status Output Connector .............................................................................................................40
Control Input Connector...............................................................................................................41
Pneumatic Connections–Basic Configuration–Using Bottled Span Gas.....................................44
Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator.............................45
M300E/EM with Carrying Strap Handle and Rack Mount Brackets ............................................62
Current Loop Option Installed on the Motherboard .....................................................................63
Internal Pneumatic Flow OPT 50A – Zero/Span Valves..............................................................65
Pneumatic Connections – Option 50A: Zero/Span Calibration Valves........................................66
Internal Pneumatic Flow OPT 50B – Zero/Span/Shutoff Valves .................................................67
Pneumatic Connections – Option 50B: Zero/Pressurized Span Calibration Valves....................68
Internal Pneumatic Flow OPT 50H – Zero/Span Valves with Internal Zero Air Scrubber ...........69
Pneumatic Connections – Option 50H: Zero/Span Calibration Valves .......................................70
Internal Pneumatic Flow OPT 50E – Zero/Span/Shutoff Valves with Internal Zero Air Scrubber71
Pneumatic Connections – Option 50E: Zero/Span Calibration Valves........................................72
M300E/EM Multidrop Card Seated on CPU above Disk on Module ...........................................73

04288D DCN5752

Teledyne API – Technical Manual - Model 300E Family CO Analyzers
Figure 5-12:
Figure 5-13:
Figure 5-14:
Figure 5-15:
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Figure 5-17:
Figure 5-18:
Figure 5-19:
Figure 6-1:
Figure 6-2:
Figure 6-3:
Figure 6-4:
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Figure 7-2:
Figure 7-3:
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Figure 7-7:
Figure 8-1:
Figure 8-2:
Figure 8-3:
Figure 8-4:
Figure 8-5:
Figure 8-6:
Figure 8-7:
Figure 8-8:
Figure 9-1:
Figure 9-2:
Figure 9-3:
Figure 9-4:
Figure 9-5:
Figure 9-6:
Figure 9-7:
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Figure 11-1:
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Figure 11-17:
Figure 11-18:
Figure 11-19:
Figure 12-1:
Figure 13-1:
Figure 13-2:
Figure 13-3:
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M300E/EM Ethernet Card............................................................................................................74
M300E/EM Rear Panel with Ethernet Installed............................................................................74
Oxygen Sensor - Principle of Operation ......................................................................................75
M300E/EM – Internal Pneumatics with O2 Sensor Option 65A ...................................................76
CO2 sensor Theory of Operation .................................................................................................78
M300E/EM – Internal Pneumatics with CO2 Sensor Option 66...................................................79
CO2 Sensor Option PCA Layout and Electronic Connections.....................................................79
Concentration Alarm Relay ..........................................................................................................80
Front Panel Display......................................................................................................................85
Viewing M300E/EM Test Functions.............................................................................................86
Viewing and Clearing M300E/EM WARNING Messages ............................................................89
Analog Output Connector Pin Out ...............................................................................................98
Default iDAS Channel Setup .................................................................................................... 110
APICOM User Interface for Configuring the iDAS .................................................................... 123
iDAS Configuration Through a Terminal Emulation Program................................................... 124
Accessing the Analog I/O Configuration Submenus................................................................. 130
Setup for Checking / Calibrating DCV Analog Output Signal Levels........................................ 137
Setup for Checking / Calibration Current Output Signal Levels Using an Ammeter................. 139
Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels ............... 141
Default Pin Assignments for Back Panel COMM Port connectors (RS-232 DCE & DTE) ....... 150
Default Pin Assignments for CPU COM Port connector (RS-232) ........................................... 150
Location of JP2 on RS-232-Multidrop PCA (Option 62) ........................................................... 160
RS-232-Multidrop PCA Host/Analyzer Interconnect Diagram .................................................. 161
CPU RS-485 Setup................................................................................................................... 162
Back Panel Connector Pin-Outs for COM2 in RS-485 Mode. .................................................. 163
CPU Connector Pin-Outs for COM2 in RS-485 Mode.............................................................. 163
APICOM Remote Control Program Interface............................................................................ 184
Pneumatic Connections – Basic Configuration – Using Bottled Span Gas.............................. 188
Pneumatic Connections – Basic Configuration – Using Gas Dilution Calibrator...................... 189
Pneumatic Connections – Option 50A: Zero/Span Calibration Valves..................................... 193
Pneumatic Connections – Option 50B: Zero/Pressurized Span Calibration Valves................. 193
Pneumatic Connections – Option 51B: Zero/Span Calibration Valves..................................... 194
Pneumatic Connections – Option 51C: Zero/Span Calibration Valves .................................... 194
O2 Sensor Calibration Set Up ................................................................................................... 209
CO2 Sensor Calibration Set Up................................................................................................. 213
Measurement Fundamentals .................................................................................................... 230
GFC Wheel ............................................................................................................................... 230
Measurement Fundamentals with GFC Wheel......................................................................... 231
Effect of CO in the Sample on CO MEAS & CO REF .............................................................. 232
Effects of Interfering Gas on CO MEAS & CO REF ................................................................. 233
Chopped IR Signal.................................................................................................................... 233
Internal Pneumatic Flow – Basic Configuration........................................................................ 234
Flow Control Assembly & Critical Flow Orifice.......................................................................... 235
M300E/EM Electronic Block Diagram....................................................................................... 238
GFC Light Mask ........................................................................................................................ 241
Segment Sensor and M/R Sensor Output ................................................................................ 241
M300E/EM Sync/Demod Block Diagram .................................................................................. 243
Sample & Hold Timing .............................................................................................................. 244
Location of relay board Status LED’s ....................................................................................... 246
Power Distribution Block Diagram ............................................................................................ 250
Interface Block Diagram............................................................................................................ 251
M300E/EM Front Panel Layout................................................................................................. 252
Keyboard and Display Interface Block Diagram ....................................................................... 253
Basic Software Operation ......................................................................................................... 256
Sample Particulate Filter Assembly .......................................................................................... 264
Viewing and Clearing Warning Messages ................................................................................ 268
Example of Signal I/O Function ................................................................................................ 273
CPU Status Indicator ................................................................................................................ 274
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Figure 13-4:
Figure 13-5:
Figure 13-6:
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Figure 13-15:
Figure 13-16:
Figure 13-17:
Figure 13-18:
Figure 13-19:
Figure 13-20:
Figure 14-1:
Figure 14-2:

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Sync/Demod Board Status LED Locations ............................................................................... 275
Relay Board Status LEDs ......................................................................................................... 276
M300E/EM – Basic Internal Gas Flow ...................................................................................... 278
Internal Pneumatic Flow OPT 50A – Zero/Span Valves (OPT 50A & 50B) ............................. 279
Internal Pneumatic Flow OPT 50B – Zero/Span/Shutoff Valves .............................................. 279
Internal Pneumatic Flow OPT 51B – Zero/Span Valves with Internal Zero Air Scrubber......... 280
Internal Pneumatic Flow OPT 51C – Zero/Span/Shutoff w/ Internal Zero Air Scrubber .......... 280
M300E/EM – Internal Pneumatics with O2 Sensor Option 65 .................................................. 281
M300E/EM – Internal Pneumatics with CO2 Sensor Option 66................................................ 281
Location of Diagnostic LED’s onCO2 Sensor PCA ................................................................... 298
Critical Flow Restrictor Assembly Disassembly........................................................................ 299
Opening the GFC Wheel Housing ............................................................................................ 300
Removing the Opto-Pickup Assembly ...................................................................................... 301
Removing the GFC Wheel Housing.......................................................................................... 301
Removing the GFC Wheel ........................................................................................................ 302
Location of Sync/Demod Housing Mounting Screws................................................................ 303
Location of Sync/Demod Gain Potentiometer........................................................................... 303
Triboelectric Charging............................................................................................................... 305
Basic anti-ESD Workbench....................................................................................................... 307

LIST OF TABLES
Table 2-1:
Table 3-1:
Table 3-2:
Table 3-3:
Table 3-4:
Table 3-5:
Table 3-6:
Table 3-7:
Table 3-8:
Table 3-9:
Table 5-1:
Table 5-2:
Table 5-3:
Table 5-4:
Table 5-5:
Table 5-6:
Table 5-7:
Table 6-1:
Table 6-2:
Table 6-3:
Table 6-4:
Table 6-5:
Table 6-6:
Table 6-7:
Table 7-1:
Table 7-2:
Table 7-3:

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M 300E/300EM Basic Unit Specifications....................................................................................27
Front Panel Nomenclature ...........................................................................................................31
Inlet / Outlet Connector Nomenclature ........................................................................................32
Ventilation Clearance...................................................................................................................38
Analog Output Pin-Outs ...............................................................................................................39
Status Output Signals ..................................................................................................................40
Control Input Signals....................................................................................................................41
NIST-SRM's Available for Traceability of CO Calibration Gases..................................................43
Front Panel Display during System Warm-Up .............................................................................48
Possible Warning Messages at Start-Up .....................................................................................49
Zero/Span Valve Operating States for Option 52 ........................................................................65
Zero/Span Valve Operating States for Option 50B......................................................................67
Zero/Span Valve Operating States for Option 50H .....................................................................69
Zero/Span Valve Operating States for Option 50E......................................................................71
M300E/EM Modem Cable Options ..............................................................................................73
CO2 Sensor - Available Ranges...................................................................................................77
CO2 Sensor Specifications...........................................................................................................77
Analyzer Operating Modes ..........................................................................................................85
Test Functions Defined ................................................................................................................87
List of Warning Messages............................................................................................................88
Primary Setup Mode Features and Functions .............................................................................90
Secondary Setup Mode Features and Functions ........................................................................90
Password Levels..........................................................................................................................92
M300E Family Physical range by Model......................................................................................97
Front Panel LED Status Indicators for iDAS ............................................................................. 107
iDAS Data Channel Properties ................................................................................................. 108
iDAS Data Parameter Functions............................................................................................... 115

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers
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Variable Names (VARS) ........................................................................................................... 125
Diagnostic Mode (DIAG) Functions .......................................................................................... 127
DIAG - Analog I/O Functions .................................................................................................... 129
Analog Output Voltage Range Min/Max ................................................................................... 131
Voltage Tolerances for the TEST CHANNEL Calibration......................................................... 137
Current Loop Output Check ...................................................................................................... 141
Test Channels Functions available on the M300E/EM’s Analog Output .................................. 144
CO Concentration Alarm Default Settings ................................................................................ 147
COMM Port Communication Modes ......................................................................................... 152
Terminal Mode Software Commands ....................................................................................... 156
Teledyne API’s Serial I/O Command Types ............................................................................. 157
Ethernet Status Indicators......................................................................................................... 164
LAN/Internet Configuration Properties...................................................................................... 165
RS-232 Communication Parameters for Hessen Protocol ....................................................... 175
Teledyne API’s Hessen Protocol Response Modes ................................................................. 178
Default Hessen Status Flag Assignments ................................................................................ 182
NIST-SRMs Available for Traceability of CO Calibration Gases ............................................... 187
AUTOCAL Modes ..................................................................................................................... 198
AutoCal Attribute Setup Parameters......................................................................................... 199
Example AutoCal Sequence..................................................................................................... 200
Calibration Data Quality Evaluation .......................................................................................... 204
Matrix for Calibration Equipment & Supplies ............................................................................ 219
Activity Matrix for Quality Assurance Checks ........................................................................... 220
Definition of Level 1 and Level 2 Zero and Span Checks......................................................... 221
Absorption Path Lengths for M300E and M300EM .................................................................. 230
Sync DEMOD Sample and Hold Circuits.................................................................................. 243
Sync/Demod Status LED Activity.............................................................................................. 244
Relay Board Status LED’s ........................................................................................................ 246
Front Panel Status LED’s.......................................................................................................... 252
M300E/EM Maintenance Schedule .......................................................................................... 261
M300E/EM Test Function Record............................................................................................. 262
Predictive uses for Test Functions............................................................................................ 263
Warning Messages - Indicated Failures ................................................................................... 269
Test Functions - Indicated Failures........................................................................................... 271
Sync/Demod Board Status Failure Indications ......................................................................... 275
I2C Status LED Failure Indications............................................................................................ 276
Relay Board Status LED Failure Indications............................................................................. 277
DC Power Test Point and Wiring Color Codes ......................................................................... 288
DC Power Supply Acceptable Levels ....................................................................................... 289
Relay Board Control Devices.................................................................................................... 290
Opto Pickup Board Nominal Output Frequencies..................................................................... 292
Analog Output Test Function - Nominal Values Voltage Outputs ............................................ 294
Analog Output Test Function - Nominal Values Voltage Outputs ............................................ 295
Status Outputs Check ............................................................................................................... 296
Static Generation Voltages for Typical Activities ...................................................................... 305
Sensitivity of Electronic Devices to Damage by ESD ............................................................... 306

xix

TABLE OF CONTENTS

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–
GENERAL INFORMATION

Part I

PART I
–
GENERAL INFORMATION

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–
GENERAL INFORMATION

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Introduction

1. INTRODUCTION
1.1. M300E FAMILY OVERVIEW
The family includes the M300E and the M300EM Gas Filter Correlation Carbon Monoxide Analyzer. The M300E
family of analyzers is a microprocessor-controlled analyzer that determines the concentration of carbon
monoxide (CO) in a sample gas drawn through the instrument. It uses a method based on the Beer-Lambert
law, an empirical relationship that relates the absorption of light to the properties of the material through which
the light is traveling over a defined distance. In this case the light is infrared radiation (IR) traveling through a
sample chamber filled with gas bearing a varying concentration of CO.
The M300E/EM uses Gas Filter Correlation (GFC) to overcome the interfering effects of various other gases
(such as water vapor) that also absorb IR. The analyzer passes the IR beam through a spinning wheel made up
of two separate chambers, one containing a high concentration of CO, known as the reference, and the other
containing a neutral gas known as the measure. The concentration of CO in the sample chamber is computed by
taking the ratio of the instantaneous measure and reference values and then compensating the ratio for sample
temperature and pressure.
The M300E/EM Analyzer’s multi-tasking software gives the ability to track and report a large number of
operational parameters in real time. These readings are compared to diagnostic limits kept in the analyzers
memory and should any fall outside of those limits the analyzer issues automatic warnings.
Built-in data acquisition capability, using the analyzer's internal memory, allows the logging of multiple
parameters including averaged or instantaneous concentration values, calibration data, and operating
parameters such as pressure and flow rate. Stored data are easily retrieved through the serial port or optional
Ethernet port via our APICOM software or from the front panel, allowing operators to perform predictive
diagnostics and enhanced data analysis by tracking parameter trends. Multiple averaging periods of one minute
to 365 days are available for over a period of one year.
Some of the common features of your M300E family of analyzers are:
 Microprocessor controlled for versatility
 Multi-tasking software allows viewing of test variables during operation
 Continuous self checking with alarms
 Bi-directional RS-232 for remote operation
 Digital status outputs indicate instrument operating condition
 Adaptive signal filtering optimizes response time
 Gas Filter Correlation Wheel for CO specific measurement
 GFC Wheel guaranteed against leaks for 5 years
 Temperature & Pressure compensation
 Internal data logging with 1 min to 365 day multiple average
 Remote operation when used with Teledyne API’s APICOM software
M300E FEATURES:
 Ranges, 0-1 ppm to 0-1000 ppm, user selectable
 14-meter path length for sensitivity
M300EM FEATURES:
 Ranges, 0-1 ppm; Max: 0-5000 ppm, user selectable
 2.5 meter path length for dynamic range

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Introduction

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Several options can be purchased for the analyzer that allows the user to more easily supply and manipulate
Zero Air and Span Gas. For more information of these options, see Section 5.6.

1.2. ADDITIONAL DOCUMENTATION
Additional documentation for the M300E/EM CO Analyzer is available from Teledyne API’s website at
http://www.teledyne-api.com/manuals/.
 APICOM software manual, P/N 03945.
 DAS Manual, P/N 02837.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Introduction

1.2.1. USING THIS MANUAL
NOTE
This manual explains the operation and use of both the M300E and the M300EM Gas Filter Correlation
Carbon Monoxide Analyzer.
For the most part these two instruments are nearly identical in their features and functions.
The examples and illustrations shown in this manual represent the M300E. Where a significant difference
does exist between the different models, each version is shown.

NOTE
Throughout this manual, words printed in capital, bold letters, such as SETUP or ENTR represent
messages as they appear on the analyzer’s display.

This manual has the following structure:

TABLE OF CONTENTS:
Outlines the contents of the manual in the order the information are presented. This is a good overview of the
topics covered in the manual. There is also a list of appendices, figures and tables.

PART I – GENERAL INFORMATION
INTRODUCTION
A brief description of the M300E/EM Analyzer architecture as well as a description of the layout of the
manual and what information is located in its various sections.
SPECIFICATIONS AND WARRANTY
Lists the performance specifications of the analyzers . If applicable, a description of the conditions and
configuration under which EPA equivalency was approved as well as the Teledyne API’s warranty
statement.
GETTING STARTED
This section provides instructions for setting up, installing and running your analyzer for the first time.
GLOSSARY
Answers to the most frequently asked questions about operating the analyzer and a glossary of acronyms
and technical terms.
OPTIONAL HARDWARE & SOFTWARE
The section describes the optional equipment and their functions for your analyzer.

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Introduction

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

PART II – OPERATING INSTRUCTIONS
BASIC OPERATION OF THE M300E/EM ANALYZER
Step-by-Step instructions for using the display/keyboard to set up and operate the M300E/EM Analyzer.
ADVANCED FEATURES OF THE M300E/EM ANALYZER
Step-by-Step instructions for using the M300E/EM Analyzer’s more advanced features such as the iDAS
system, the DIAG and VARS menus and the and the TEST channel analog output.
REMOTE OPERATION OF THE M300E/EM Analyzer
Information and instructions for interacting with the M300E/EM Analyzer via its several remote interface
options (e.g. via RS-232, Ethernet, its built in digital control inputs/outputs, etc.)
M300E/EM VALIDATION AND VERIFICATION
Methods and procedures for verifying the correct operation of your M300E/EM Analyzer as well as step
by step instructions for calibrating it.
EPA PROTOCOL CALIBRATION
Specific information regarding calibration requirements for analyzers used in EPA monitoring.

PART III – TECHNICAL INFORMATION
THEORY OF OPERATION
An in-depth look at the various principals by which the analyzer operates as well as a description of how
the various electronic, mechanical and pneumatic components of the analyzer work and interact with
each other. A close reading of this section is invaluable for understanding the analyzer’s operation.
MAINTENANCE SCHEDULE AND PROCEDURES
Description of preventative maintenance procedures that should be regularly performed on the analyzer
to assure good operating condition.
GENERAL TROUBLESHOOTING & REPAIR OF THE M300E/EM ANALYZER
This section includes pointers and instructions for diagnosing problems with the analyzer in general and
the Terminus as well as instructions on performing repairs of on the Terminus.
A PRIMER ON ELECTRO-STATIC DISCHARGE
This section describes how static electricity occurs; why it is a significant concern and; how to avoid it and
avoid allowing ESD to affect the reliable and accurate operation of your analyzer.

APPENDICES
For easier access and better updating, some information has been separated out of the manual and placed in a
series of appendices at the end of this manual. These include version-specific software menu trees, warning
messages, definitions Modbus registers and serial I/O variables as well as spare part listings, repair
questionnaires, interconnect drawing, detailed pneumatic and electronic schematics.

NOTE
The flowcharts in this manual contain typical representations of the analyzer’s display during the various
operations being described. These representations are not intended to be exact and may differ slightly
from the actual display of the instrument.

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Specifications and Approvals

2. SPECIFICATIONS AND APPROVALS
2.1. SPECIFICATIONS
Table 2-1:

M 300E/300EM Basic Unit Specifications

Ranges

M300E: Min: 0-1 ppm; Max: 0-1000 ppm of Full Scale (User selectable)
M300EM: Min: 0-5 ppm; Max: 0-5000 ppm of Full Scale (User selectable)

Measurement Units

M300E: ppb, ppm, µg/m3, mg/m3 (user selectable)
M300EM: ppm, mg/m3 (user selectable)

Zero Noise

M300E: < 0.02 ppm RMS1; M300EM: ≤ 0.1 ppm RMS

Span Noise

M300E:<0.5% of rdg RMS over 5ppm1, 3;

Lower Detectable Limit
Zero Drift (24 hours)
Zero Drift (7 days)

M300EM:>0.5% of rdg RMS over 20ppm

M300E: < 0.04 ppm;

M300EM: 0.2 ppm

M300E: < 0.1 ppm;

M300EM: <0.5 ppm

M300E: < 0.2 ppm;

M300EM: <1.0ppm

Span Drift (24 hour2s)

The greater of < 0.5% of reading or 0.1ppm (M300E), 0.5ppm(M300EM)

Span Drift (7 days) 2

The greater of < 1% of reading or 0.5ppm (M300E), 1 ppm(M300EM)

Linearity

M300E: Better than 1% Full Scale5;
M300EM: 0 - 3000 ppm: 1% full scale;

Precision

M300E: The greater of 0.5% of reading or 0.2ppm;
M300EM: The greater of 1.0% of reading or 1ppm

Lag Time 1
Rise/Fall Time

3000 - 5000 ppm: 2% full scale

10 sec1
1

Sample Flow Rate

<60 sec to 95%1
800 cm3/min. ±10%
O2 Sensor option adds 120 cm³/min to total flow though when installed

Temperature Range

5 - 40C operating, 10 - 40C EPA Equivalency (M300E only)

Humidity Range

0-95% RH, Non-Condensing

Temp Coefficient

< 0.05 % per C (minimum 50 ppb/C)

Voltage Coefficient

< 0.05 % per V

Dimensions (HxWxD)

7" x 17" x 23.5" (178 mm x 432 mm x 597 mm)

Weight

50 lb (22.7 kg)

AC Power

100V 50/60 Hz (3.25A), 115 V 60 Hz (3.0A),
220 – 240 V 50/60 Hz (2.5A)

Environmental Conditions

Installation Category (Over voltage Category) II Pollution Degree 2

Analog Outputs

4 user configurable outputs

Analog Output Ranges

All Outputs: 0.1V, 1V, 5V or 10V
Three outputs convertible to 4-20 mA isolated current loop.
All Ranges with 5% under/over-range

Analog Output Resolution

1 part in 4096 of selected full-scale voltage

Status Outputs

8 Status outputs from opto-isolators

Control Inputs

6 Control Inputs, 2 defined, 4 spare

Serial I/O

One (1) RS-232/optional multidrop; One (1) RS-232/optional RS-485 (2 connecters in
parallel)
Baud Rate : 300 - 115200

Alarm outputs (optional)

2 opto-isolated alarm outputs and 2 dry contact alarm outputs

Certifications

USEPA: Reference Method Number EQOA-0992-087
CE: EN61010-1:90 + A1:92 + A2:95, EN61326 - Class A

As defined by the USEPA

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Specifications and Approvals

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

2.2. EPA EQUIVALENCY DESIGNATION
Teledyne API’s M300E Carbon Monoxide Analyzer is designated as Reference Method Number EQOA-0992087 as defined in 40 CFR Part 53, when operated under the following conditions:
 Range: Any range from 10 ppm to 50 ppm.
 Ambient temperature range of 10 to 40C.
 Line voltage range of 90 – 127 and 200 – 230 VAC, 50/60 Hz.
 Sample filter: Equipped with PTFE filter element in the internal filter assembly.
 Sample flow of 800  80 cm3/min at sea level.
 Internal sample pump.
 Software settings:
Dilution factor

1.0

AutoCal

ON or OFF

Dynamic Zero

ON or OFF

Dynamic Span

OFF

Dual range

ON or OFF

Auto range

ON or OFF

Temp/Pres compensation

Under the designation, the analyzer may be operated with or without the following options:
 Rack mount with slides.
 Rack mount without slides, ears only.
 Zero/span valve options.
 Option 50A – Sample/Cal valves, or;
 Option 50B – Sample/Cal valves with span shutoff & flow control.
 Internal zero/span (IZS) option with either:
 Option 51A – Sample/Cal valves, or;
 Option 51C – Sample/Cal valves with span shutoff & flow control.
 Status outputs.
 Control inputs.
 RS-232 output.
 Ethernet output.
 4-20mA, isolated output.

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Specifications and Approvals

2.3. TUV DESIGNATION
On behalf of Teledyne Advanced Pollution Instrumentation TÜV Rheinland Immissionsschutz und
Energiesysteme GmbH has performed the suitability test of the measuring system M300E for the component
carbon monoxide.
The suitability test was carried out in compliance with the following guidelines and requirements:
 EN 14626 Ambient Air Quality – Standard method for the measurement of the concentration of carbon
monoxide by nondispersive infrared spectroscopy, March 2005.
The measuring system M300E operates using the non-dispersive infrared spectroscopy.
The investigations have been carried out in the laboratory and during a field test, lasting three months. The
tested measuring ranges are:

Component
Carbon Monoxide

Measuring Range
CO

100

mg/m3

EN 14626

NOTE: 0-100 ppm correlates to 0-100 µmol/mol or 0-116 mg/m3 (at 293 K and 1013
mbar).
The minimum requirements have been fulfilled in the suitability test.
Therefore the TÜV Immissionsschutz and Energiesysteme GmbH proposes the publication as a suitability-tested
measuring system for continuous monitoring of carbon monoxide in the ambient air.

2.4. CE MARK COMPLIANCE
2.4.1. EMISSIONS COMPLIANCE
Teledyne API’s M300E/EM Gas Filter Correlation CO Analyzer was tested and found to be fully compliant with:
EN61326 (1997 w/A1: 98) Class A, FCC Part 15 Subpart B section 15.107 Class A, ICES-003 Class A (ANSI
C63.4 1992) & AS/NZS 3548 (w/A1 & A2; 97) Class A.
Tested on 11-29-2001 at CKC Laboratories, Inc., Report Number CE01-249.

2.4.2. SAFETY COMPLIANCE
Teledyne API’s M300E/EM Gas Filter Correlation CO Analyzer was tested and found to be fully compliant with:
IEC 61010-1:90 + A1:92 + A2:95,
Tested on 02-06-2002 at NEMKO, Report Number 2002-012219.

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Getting Started

3. GETTING STARTED
3.1. M300E/EM ANALYZER LAYOUT

Figure 3-1:

Table 3-1:
Name

Front Panel Layout

Front Panel Nomenclature

Significance

Mode Field

Displays the name of the analyzer’s current operating mode.

Message Field

Displays a variety of informational messages such as warning messages, operational data, test function
values and response messages during interactive tasks.

Concentration
Field

Displays the actual concentration of the sample gas currently being measured by the analyzer in the
currently selected units of measure.

Keypad
Definition Field

Displays dynamic, context sensitive definitions for the row of keys just below the display.

STATUS LED’s
Name

Color

State

Definition

Off
On
Blinking

Unit is not operating in sample mode, iDAS is disabled.
Sample Mode active; Front Panel Display being updated; iDAS data being stored.
Unit is operating in sample mode, front panel display being updated, iDAS hold-off mode
is ON, iDAS disabled

SAMPLE

Green

CAL

Yellow

Off
On
Blinking

Auto Cal disabled
Auto Cal enabled
Unit is in calibration mode

FAULT

Red

Off
Blinking

No warnings exist
Warnings exist

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Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Figure 3-2:

Table 3-2:
REAR PANEL LABEL

Rear Panel Layout

Inlet / Outlet Connector Nomenclature
FUNCTION

Connect a gas line from the source of sample gas here.

SAMPLE Calibration gases are also inlet here on units without zero/span/shutoff valve options
installed.
Connect an exhaust gas line of not more than 10 meters long here that leads outside

EXHAUST the shelter or immediate area surrounding the instrument.
Pressure Span
Vent/Span
IZS

On units with zero/span/shutoff valve options installed, connect a gas line to the source
of calibrated span gas here.
Span gas vent outlet for units with zero/span/shutoff valve options installed.
Connect an exhaust gas line of not more than 10 meters long here that leads outside
the shelter or immediate area surrounding the instrument.
Internal Zero Air: On units with zero/span/shutoff valve options installed but no internal
zero air scrubber attach a gas line to the source of zero air here.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Figure 3-3:

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Getting Started

Internal Layout – M300E

Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Figure 3-4:

Internal Layout – M300EM with CO2 and O2 Sensor Option

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Getting Started

Sample Gas Outlet
fitting

Sample Gas Flow
Sensor

Sample Chamber
Sync/Demod PCA
Housing

Pressure Sensor(s)

Bench
Temperature
Thermistor
Shock Absorbing
Mounting Bracket
Opto-Pickup
PCA

Purge Gas
Pressure Regulator
IR Source
GFC Wheel
Heat Sync

GFC Wheel Motor
GFC Temperature
Sensor

Purge Gas
Inlet
GFC Heater

Figure 3-5:

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Optical Bench Layout

Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Figure 3-6:

M300E/EM Internal Gas Flow (Basic Configuration)

NOTE
For pneumatic diagrams of M300E/EM Analyzer with various calibration valve options, see Section 5.6.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Getting Started

3.2. UNPACKING THE M300E/EM ANALYZER
CAUTION
GENERAL SAFETY HAZARD
To avoid personal injury, always use two persons to lift and carry the M300E/EM.

CAUTION
ELECTRICAL SHOCK HAZARD
Never disconnect PCAs, wiring harnesses or electronic subassemblies while under
power.

CAUTION – Avoid Warranty Invalidation
Printed circuit assemblies (PCAs) are sensitive to electro-static discharges too small to
be felt by the human nervous system. Damage resulting from failure to use ESD
protection when working with electronic assemblies will void the instrument warranty.
See A Primer on Electro-Static Discharge in this manual for more information on preventing
ESD damage.
NOTE
It is recommended that you store shipping containers/materials for future use if/when the instrument should be
returned to the factory for repair and/or calibration serivce. See Warranty section in this manual and shipping
procedures on our Website at http://www.teledyne-api.com under Customer Support > Return Authorization.
1. Verify that there is no apparent external shipping damage. If damage has occurred, please advise the
shipper first, then Teledyne API.
2. Included with your analyzer is a printed record (Final Test and Validation Data Sheet: M300E PN
04307; M300EM PN 04311) of the final performance characterization performed on your instrument at
the factory. This record is an important quality assurance and calibration record for this instrument. It
should be placed in the quality records file for this instrument.
3. Carefully remove the top cover of the analyzer and check for internal shipping damage by:
 Removing the setscrew located in the top, center of the Front panel;
 Removing the two flat head, Phillips screws on the sides of the instrument (one per side towards the
rear);
 Sliding the cover backwards until it clears the analyzer’s front bezel, and;
 Lifting the cover straight up.
4. Inspect the interior of the instrument to make sure all circuit boards and other components are in good
shape and properly seated.
5. Check the connectors of the various internal wiring harnesses and pneumatic hoses to make sure they
are firmly and properly seated.
6. Verify that all of the optional hardware ordered with the unit has been installed. These are listed on the
paperwork accompanying the analyzer.

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Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.2.1. VENTILATION CLEARANCE
Whether the analyzer is set up on a bench or installed into an instrument rack, be sure to leave sufficient
ventilation clearance.
Table 3-3:

Ventilation Clearance

AREA

MINIMUM REQUIRED CLEARANCE

Back of the instrument

4 in.

Sides of the instrument

1 in.

Above and below the instrument

1 in.

Various rack mount kits are available for this analyzer. See Section 5.2 of this manual for more information.

3.3. ELECTRICAL CONNECTIONS
NOTE
To maintain compliance with EMC standards, it is required that the cable length be no greater than 3 meters for
all I/O connections, which include Analog In, Analog Out, Status Out, Control In, Ethernet/LAN, USB, RS-232,
and RS-485.

3.3.1. POWER CONNECTION
Attach the power cord to the analyzer and plug it into a power outlet capable of carrying at least 10 A current at
your AC voltage and that it is equipped with a functioning earth ground.

CAUTION
ELECTRICAL SHOCK HAZARD
High Voltages are present inside the analyzer’s case.
Power connection must have functioning ground connection.
Do not defeat the ground wire on power plug.
Turn off analyzer power before disconnecting or
connecting electrical subassemblies.
Do not operate with cover off.

CAUTION
GENERAL SAFETY HAZARD
The M300E/EM Analyzer can be configured for both
100-130 V and 210-240 V at either 47 Hz or 63 Hz.
To avoid damage to your analyzer, make sure that the AC power voltage matches
the voltage indicated on the analyzer’s serial number label tag (See Figure 3-2)
before plugging the M300E/EM into line power.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Getting Started

3.3.2. ANALOG OUTPUT CONNECTIONS
The M300E is equipped with several analog output channels accessible through a connector on the back panel
of the instrument. The standard configuration for these outputs is mVDC. An optional current loop output is
available for each.
When the instrument is in its default configuration, channels A1 and A2 output a signal that is proportional to the
CO concentration of the sample gas. Either can be used for connecting the analog output signal to a chart
recorder or for interfacing with a datalogger.
Output A3 is only used on the M300E/EM if the optional CO2 or O2 sensor is installed.
Channel A4 is special. It can be set by the user (see Section 7.4.6) to output any one of the parameters
accessible through the keys of the units sample display.
To access these signals attach a strip chart recorder and/or data-logger to the appropriate analog output
connections on the rear panel of the analyzer.
ANALOG OUT

A1
+

A2
-

Figure 3-7:
Table 3-4:
PIN
1
2
3
4
5
6
7
8

A3
-

A4
-

Analog Output Connector
Analog Output Pin-Outs

ANALOG OUTPUT

VOLTAGE SIGNAL

CURRENT SIGNAL

A1
A2
A3
(Only used if CO2 or
O2 Sensor is
installed)
A4

V Out

I Out +

Ground

I Out -

V Out

I Out +

Ground

I Out -

V Out

I Out +

Ground

I Out -

V Out

I Out +

Ground

I Out -

3.3.3. CONNECTING THE STATUS OUTPUTS
The status outputs report analyzer conditions via optically isolated NPN transistors, which sink up to 50 mA of
DC current. These outputs can be used interface with devices that accept logic-level digital inputs, such as
Programmable Logic Controllers (PLCs). Each status bit is an open collector output that can withstand up to 40
VDC. All of the emitters of these transistors are tied together and available at D.
NOTE
Most PLC’s have internal provisions for limiting the current that the input will draw from an external
device. When connecting to a unit that does not have this feature, an external dropping resistor must be
used to limit the current through the transistor output to less than 50 mA.
At 50 mA, the transistor will drop approximately 1.2V from its collector to emitter.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

The status outputs are accessed via a 12-pin connector on the analyzer’s rear panel labeled STATUS (see
Figure 3-2). Pin-outs for this connector are:

Figure 3-8:

Optional O2 CAL

DIAG MODE

SPAN CAL

3
HIGH RANGE

2
CONC VALID

SYSTEM OK

ZERO CAL

STATUS

Status Output Connector

Table 3-5: Status Output Signals
REAR PANEL
LABEL
1

STATUS
DEFINITION

CONDITION

SYSTEM OK

ON if no faults are present.

CONC VALID

OFF any time the HOLD OFF feature is active, such as during calibration or when
other faults exist possibly invalidating the current concentration measurement
(example: sample flow rate is outside of acceptable limits).
ON if concentration measurement is valid.

HIGH RANGE

ON if unit is in high range of either the DUAL or AUTO range modes.

ZERO CAL

ON whenever the instrument’s ZERO point is being calibrated.

SPAN CAL

ON whenever the instrument’s SPAN point is being calibrated.

DIAG MODE

ON whenever the instrument is in DIAGNOSTIC mode.

CO2 CAL

If this analyzer is equipped with an optional CO2 sensor, this Output is ON when that
sensor is in calibration mode.
Otherwise this output is unused.

O2 CAL

If this analyzer is equipped with an optional O2 sensor, this Output is ON when that
sensor is in calibration mode.
Otherwise this output is unused.

EMITTER BUS

The emitters of the transistors on pins 1-8 are bussed together.

SPARE
+

DC POWER

+ 5 VDC, 300 mA source (combined rating with Control Output, if used).

Digital Ground

The ground level from the analyzer’s internal DC power supplies.

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Getting Started

3.3.4. CONNECTING THE CONTROL INPUTS
If you wish to use the analyzer to remotely activate the zero and span calibration modes, several digital control
inputs are provided through a 10-pin connector labeled CONTROL IN on the analyzer’s rear panel.
There are two methods for energizing the control inputs. The internal +5V available from the pin labeled “+” is
the most convenient method. However, if full isolation is required, an external 5 VDC power supply should be
used.
CONTROL IN

CONTROL IN

+
ZERO

Figure 3-9:

Table 3-6:
STATUS DEFINITION

5 VDC Power
Supply

External Power Connections

Local Power Connections

INPUT #

CAL HIGH RANGE

LOW SPAN

C
CAL HIGH RANGE

B
LOW SPAN

ZERO

Control Input Connector

Control Input Signals
ON CONDITION

REMOTE ZERO CAL

The analyzer is placed in Zero Calibration mode. The mode field of the
display will read ZERO CAL R.

REMOTE SPAN CAL

The analyzer is placed in span calibration mode as part of performing a low
span (midpoint) calibration. The mode field of the display will read LO CAL
R.

REMOTE CAL HIGH
RANGE

The analyzer is forced into high range for zero or span calibrations. This
only applies when the range mode is either DUAL or AUTO. The mode field
of the display will read HI CAL R.

D, E
&F

SPARE
Digital Ground

U
+

The ground level from the analyzer’s internal DC power supplies (same as
chassis ground).

External Power input

Input pin for +5 VDC required to activate pins A – F.

5 VDC output

Internally generated 5V DC power. To activate inputs A – F, place a jumper
between this pin and the “U” pin. The maximum amperage through this port
is 300 mA (combined with the analog output supply, if used).

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.3.5. CONNECTING THE SERIAL PORTS
If you wish to utilize either of the analyzer’s two serial interface COMM ports, refer to Section 8 for instructions on
their configuration and usage.

3.3.6. CONNECTING TO A LAN OR THE INTERNET
If your unit has a Teledyne API’s Ethernet card, plug one end into the 7’ CAT5 cable supplied with the option into
the appropriate place on the back of the analyzer and the other end into any nearby Ethernet access port.
NOTE
The M300E/EM firmware supports dynamic IP addressing or DHCP.
If your network also supports DHCP, the analyzer will automatically configure its LAN connection
appropriately (see Section 8.4.2).
If your network does not support DHCP, see Section 8.4.3 for instructions on manually configuring the
LAN connection.

3.3.7. CONNECTING TO A MULTIDROP NETWORK
If your unit has a Teledyne API’s RS-232 multidrop card, see Section 8.2 for instructions on setting it up.

3.4. PNEUMATIC CONNECTIONS
CAUTION
GENERAL SAFETY HAZARD
CARBON MONOXIDE (CO) IS A TOXIC GAS.
Obtain a Material Safety Data Sheet (MSDS) for this material. Read and rigorously
follow the safety guidelines described there.
Do not vent calibration gas and sample gas into enclosed areas.

3.4.1. CALIBRATION GASES
3.4.1.1. Zero Air
Zero air is a gas that is similar in chemical composition to the earth’s atmosphere but scrubbed of all
components that might affect the analyzers readings, in this case CO and water vapor. If your analyzer is
equipped with an IZS or External Zero Air scrubber option, it is capable of creating zero air.
If the analyzer is NOT equipped with the optional CO2 sensor, zero air should be scrubbed of CO2 as well
as this gas can also have an interfering effect on CO measurements.
For analyzers without an IZS or external zero air scrubber option, a zero air generator such as the
Teledyne API’s M701 can be used.

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Getting Started

3.4.1.2. Span Gas
Span gas is a gas specifically mixed to match the chemical composition of the type of gas being
measured at near full scale of the desired measurement range. In the case of CO measurements made
with the M300E/EM Analyzer, it is recommended that you use a span gas with a CO concentration equal
to 80-90% of the measurement range for your application.
EXAMPLE: If the application is to measure between 0 ppm and 500 ppb, an appropriate span gas
concentration would be 400-450 ppb CO in N2.
Some applications, such as EPA monitoring, require a multipoint calibration procedure where span gases
of different concentrations are needed. We recommend using a bottle of calibrated CO gas of higher
concentration in conjunction with a gas dilution calibrator such as a Teledyne API’s M700. This type of
calibrator precisely mixes a high concentration gas with zero air (both supplied externally) to accurately
produce span gas of the correct concentration. Linearity profiles can be automated with this model and
run unattended over night.
Cylinders of calibrated CO gas traceable to NIST-Standard Reference Material specifications (also
referred to as SRMs or EPA protocol calibration gases) are commercially available. Table 3-7 lists specific
NIST-SRM reference numbers for various concentrations of CO.
Table 3-7:

NIST-SRM's Available for Traceability of CO Calibration Gases

NIST-SRM

TYPE

NOMINAL
CONCENTRATION

1680b

CO in N2

500 ppm

1681b

CO in N2

1000 ppm

2613a

CO in Zero Air

20 ppm

2614a

CO in Zero Air

45 ppm

2659a

O2 in N2

21% by weight

2626a

CO2 in N2

4% by weight

2745*

CO2 in N2

16% by weight

1
2

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Used to calibrate optional O2 sensor.
Used to calibrate optional CO2 sensor.

Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.4.2. PNEUMATIC CONNECTIONS TO M300E/EM BASIC CONFIGURATION
NOTE
In order to prevent dust from getting into the gas flow channels of your analyzer, it was shipped with
small plugs inserted into each of the pneumatic fittings on the back panel.
Make sure that all of these dust plugs are removed before attaching
exhaust and supply gas lines.
See Figure 3-2 and Table 3-2 for the location and descriptions of the various pneumatic inlets/outlets referred to
in this section.
See Section 5.6 for information regarding the pneumatic setup of M300E/EM Analyzers with various optional
calibration valve options in stalled

CAUTION
GENERAL SAFETY HAZARD
Sample and calibration gases should only come into contact with PTFE (Teflon), FEP,
glass, stainless steel or brass.
The exhaust from the analyzer’s internal pump MUST be vented outside the immediate
area or shelter surrounding the instrument.
It is important to conform to all safety requirements regarding exposure to CO.

Figure 3-10:

Pneumatic Connections–Basic Configuration–Using Bottled Span Gas

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Figure 3-11:

Getting Started

Pneumatic Connections–Basic Configuration–Using Gas Dilution Calibrator

3.4.2.1. Sample Gas Source
Attach a sample inlet line to the SAMPLE inlet port. The sample input line should not be more than 2 meters
long.
 Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-hg above ambient pressure
and ideally should equal ambient atmospheric pressure.
 In applications where the sample gas is received from a pressurized manifold, a vent must be placed on
the sample gas before it enters the analyzer.

3.4.2.2. Calibration Gas Sources
The source of calibration gas is also attached to the SAMPLE inlet, but only when a calibration operation is
actually being performed.
NOTE
Zero air and span gas inlets should supply their respective gases in excess of the 800 cc3/min demand
of the analyzer.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.4.2.3. Input Gas Venting
The span gas, zero air supply and sample gas line MUST be vented in order to ensure that the gases input do
not exceed the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects.
These vents should be:
 At least 0.2m long;
 No more than 2m long and;
 Vented outside the shelter or immediate area surrounding the instrument.

3.4.2.4. Exhaust Outlet
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line should be:
 PTEF tubing; minimum O.D ¼”;
 A maximum of 10 meters long;
 Vented outside the M300E/EM Analyzer’s enclosure.
NOTE
Once the appropriate pneumatic connections have been made, check all pneumatic fittings for leaks
using the procedures defined in Section 12.3.3.

NOTE
For information on attaching gas lines to M300E/EM Analyzers with various calibration valve options,
see Section 5.6.

3.5. INITIAL OPERATION
NOTE
The analyzer’s cover must be installed to ensure that the temperatures of the GFC Wheel and absorption
cell assemblies are properly controlled.
If you are unfamiliar with the M300E/EM theory of operation, we recommend that you read Section Error!
Reference source not found.. For information on navigating the analyzer’s software menus, see the menu
trees described in Appendix A.1.

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Getting Started

3.5.1. STARTUP
After the electrical and pneumatic connections are made, turn on the instrument. The pump and exhaust fan
should start immediately. The display should immediately display a single, horizontal dash in the upper left
corner of the display. This will last approximately 30 seconds while the CPU loads the operating system.
Once the CPU has completed this activity it will begin loading the analyzer firmware and configuration data.
During this process, astring of messages will appear on the analyzer’s front panel display.
System waits 3 seconds then
automatically begins its
initialization routine.
.

System is checking the validity and
functionality of the Terminus
memory and firmware.

If at this point,
appears, contact Teledyne
Instruments customer service.

The instrument is loading
configuration and calibration data
from the flash chip.

The instrument is loading the
system firmware.

The startup process may hesitate at this point if:
· The Ethernet option is installed;
· DHCP mode is turned on and;
· The instrument is not connected to a
functioning network.

The analyzer should automatically switch to Sample Mode after completing the boot-up sequence and start
monitoring CO gas.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.5.2. WARM UP
The M300E/EM requires about 60 minutes warm-up time before reliable CO measurements can be taken.
During that time, various portions of the instrument’s front panel will behave as shown in Table 3-8. See Figure
3-1 for the layout.
Table 3-8: Front Panel Display during System Warm-Up
NAME

COLOR

BEHAVIOR

SIGNIFICANCE

Concentration
Field

N/A

Displays current,
compensated CO
Concentration

This is normal operation.

Mode Field

N/A

Displays blinking
“SAMPLE”

Instrument is in sample mode but is still in the process of
warming up. (iDAS holdoff period is active)

Sample

Green

Unit is operating in sample mode; front panel display is being
updated.
Flashes On/Off when adaptive filter is active

Cal

Yellow

Off

The instrument’s calibration is not enabled.

Fault

Red

Blinking

The analyzer is warming up and hence out of specification
for a fault-free reading. Various warning messages will
appear.

STATUS LED’s

3.5.3. WARNING MESSAGES
Because internal temperatures and other conditions may be outside the specified limits during the analyzer’s
warm-up period, the software will suppress most warning conditions for 30 minutes after power up. If warning
messages persist after the 60 minutes warm-up period is over, investigate their cause using the troubleshooting
guidelines in Section Error! Reference source not found..
To view and clear warning messages, press:

Table 3-6 lists brief descriptions of the warning messages that may occur during start up.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Table 3-9:

Possible Warning Messages at Start-Up

Message

The instrument's A/D circuitry or one of its analog outputs is not calibrated.

BENCH TEMP WARNING

Optical bench temperature is outside the specified limits.

BOX TEMP WARNING

The temperature inside the M300E/EM chassis is outside the specified limits.

CANNOT DYN SPAN2

Remote span calibration failed while the dynamic span feature was set to
turned on.

CANNOT DYN ZERO3

Remote zero calibration failed while the dynamic zero feature was set to turned
on.

CONFIG INITIALIZED

Configuration was reset to factory defaults or was erased.

FRONT PANEL WARN

CPU is unable to communicate with the front panel.
Photometer temperature outside of warning limits specified by
PHOTO_TEMP_SET variable.

REAR BOARD NOT DET

Motherboard was not detected during power up.

RELAY BOARD WARN

CPU is unable to communicate with the relay PCA.

SAMPLE FLOW WARN

The flow rate of the sample gas is outside the specified limits.

SAMPLE PRESS WARN

Sample pressure outside of operational parameters.
The temperature of the sample gas is outside the specified limits.

SOURCE WARNING

The IR source may be faulty.

SYSTEM RESET1

The computer was rebooted.

WHEEL TEMP WARNING

iDAS data storage was erased.

PHOTO TEMP WARNING

SAMPLE TEMP WARN

MEANING

ANALOG CAL WARNING

DATA INITIALIZED

Getting Started

The Gas Filter Correlation Wheel temperature is outside the specified limits.

Clears 45 minutes after power up.
Clears the next time successful zero calibration is performed.
Clears the next time successful span calibration is performed.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.5.4. FUNCTIONAL CHECK
After the analyzer’s components have warmed up for at least 60 minutes, verify that the software properly
supports any hardware options that were installed.
For information on navigating through the analyzer’s software menus, see the menu trees described in
Appendix A.1.
 Check to make sure that the analyzer is functioning within allowable operating parameters.
 Appendix C includes a list of test functions viewable from the analyzer’s front panel as well as their
expected values.
 These functions are also useful tools for diagnosing performance problems with your analyzer (see
Section 13.1.2).
 The enclosed Final Test and Validation Data Sheet (P/N 04307) lists these values before the
instrument left the factory.
To view the current values of these parameters press the following key sequence on the analyzer’s front
panel. Remember that until the unit has completed its warm-up these parameters may not have stabilized.

If your analyzer has an Ethernet card installed and your network is running a Dynamic Host Configuration
Protocol (DHCP) software package, the Ethernet option will automatically configure its interface with your LAN.
 However, it is a good idea to check these settings to make sure that the DHCP has successfully
downloaded the appropriate network settings from your network server (See Section 8.4.2).
 If your network is not running DHCP, you will have to configure the analyzer’s interface manually (See
Section 8.4.3).

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Getting Started

3.6. INITIAL CALIBRATION OF THE M300E/EM
To perform the following calibration you must have sources for zero air and span gas available for input into the
sample port on the back of the analyzer. See Section 3.4 for instructions for connecting these gas sources.
The initial calibration should be carried out using the same reporting range set up as used during the analyzer’s
factory calibration. This will allow you to compare your calibration results to the factory calibration as listed on
the Final Test and Validation Data Sheet.
If both available iDAS parameters for a specific gas type are being reported via the instruments analog outputs
e.g. CONC1 and CONC2 when the DUAL range mode is activated, separate calibrations should be carried out
for each parameter.
 Use the LOW button when calibrating for CONC1 (equivalent to RANGE1).
 Use the HIGH button when calibrating for CONC2 (equivalent to RANGE2).
See Manual Addendum, P/N 06270 for more information on the configurable analog output reporting ranges.
NOTE
The following procedure assumes that the instrument does not have any of the available Valve Options
installed.
See Section 9.3 for instructions for calibrating instruments possessing valve options.

3.6.1. INTERFERENTS FOR CO2 MEASUREMENTS
It should be noted that the gas filter correlation method for detecting CO is subject to interference from a number
of other gases that absorb IR in a similar fashion to CO. Most notable of these are water vapor, CO2, N2O
(nitrous oxide) and CH4 (methane). The M300E/EM has been successfully tested for its ability to reject
interference from of these sources, however high concentrations of these gases can interfere with the
instrument’s ability to make low-level CO measurements.
For a more detailed discussion of this topic, see Section 11.2.1.3.

3.6.2. INITIAL CALIBRATION PROCEDURE FOR M300E/EM ANALYZERS
WITHOUT OPTIONS
The following procedure assumes that:
 The instrument DOES NOT have any of the available calibration valve or gas inlet options installed;
 Cal gas will be supplied through the SAMPLE gas inlet on the back of the analyzer (see Figure 3-2), and;
 The pneumatic setup matches that described in Section 3.4.2.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.6.2.1. Verifying the M300E/EM Reporting Range Settings
While it is possible to perform the following procedure with any range setting we recommend that you perform
this initial checkout using following reporting range settings:
 Unit of Measure: PPM
 Analog Output Reporting Range: 50 ppm
 Mode Setting: SNGL
While these are the default setting for the M300E/EM Analyzer, it is recommended that you verify them before
proceeding with the calibration procedure, by pressing:
SAMPLE
CAL

SETUP X.X

SETUP

PRIMARY SETUP MENU

CFG DAS RNGE PASS CLK MORE

Verify that the MODE
is set for SNGL.
If it is not, press
SINGL ENTR.

Verify that the RANGE is
set for 50.0
If it is not, toggle each
numeric key until the
proper range is set, then
press ENTR.

Verify that the UNITs
is set for PPM
If it is not, press
PPM ENTR.

SETUP X.X

RANGE CONTROL MENU

MODE SET

UNIT

SETUP X.X

RANGE MODE:SINGL

DIL

EXIT

SNGL DUAL AUTO

ENTR EXIT

SETUP X.X

RANGE CONTROL MENU

MODE SET

UNIT

SETUP X.X

RANGE: 50.0 Conc

DIL

EXIT

SETUP X.X

RANGE CONTROL MENU

MODE SET

UNIT

SETUP X.X

CONC UNITS:PPM

PPB

EXIT

DIL

PPM UGM MGM

ENTR EXIT

EXIT

Press EXIT
3x’s to return
the M200E to
the SAMPLE
mode.

ENTR EXIT

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Getting Started

3.6.2.2. Dilution Ratio Set Up
If the dilution ration option is enabled on your M300E/EM Analyzer and your application involves diluting the
sample gas before it enters the analyzer, set the dilution ration as follows:

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.6.2.3. Set CO Span Gas Concentration
Set the expected CO pan gas concentration. This should be 80-90% of range of concentration range for which
the analyzer’s analog output range is set.

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Getting Started

3.6.2.4. Zero/Span Calibration
To perform the zero/span calibration procedure, press:

SAMPLE

RANGE=0.0 PPm

< TST TST >

CAL

CO= XX.XX
SETUP

Set the Display to show
the STABIL test function.
This function calculates
the stability of the CO
measurement.

Toggle TST> button until ...

SAMPLE

STABIL= XXXX PPM

< TST TST >

CO=XX.XX

CAL

SETUP

Allow zero gas to enter the sample port
at the rear of the analyzer.

Wait until STABIL
falls below 0.5 ppm.
This may take several
minutes.

SAMPLE

STABIL= XXXX PPM

< TST TST >

M-P CAL

CAL

SETUP

STABIL= XXXX PPM

CO=XX.XX

ZERO CONC

STABIL= XXXX PPM

ENTR

EXIT

CO=XX.XX

CONC

EXIT

Allow span gas to enter the sample port
at the rear of the analyzer.

Press ENTR to changes
the OFFSET & SLOPE
values for the CO
measurements.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.

Wait until STABIL
falls below 0.5 PPM.
This may take several
minutes.

SAMPLE
The SPAN key now appears
during the transition from
zero to span.
You may see both keys.
If either the ZERO or SPAN
buttons fail to appear see the
Troubleshooting section for
tips.

< TST TST >

M-P CAL

STABIL= XXXX PPM
CAL

STABIL= XXXX PPM

ENTR

M-P CAL

CONC

STABIL= XXXX PPM

ENTR

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SETUP

ZERO SPAN CONC

M-P CAL

CO=XX.XX

CONC

CO=XX.XX
EXIT

Press ENTR to changes
the OFFSET & SLOPE
values for the CO
measurements.
Press EXIT to leave the
calibration unchanged and
return to the previous
menu.

EXIT at this point
returns to the
SAMPLE menu.

Getting Started

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

3.6.3. O2 SENSOR CALIBRATION PROCEDURE
If your M300E/EM is equipped with the optional O2 sensor, this sensor should be calibrated during installation of
the instrument. See Section 9.7.1 for instructions.

3.6.4. CO2 SENSOR CALIBRATION PROCEDURE
If your M300E/EM is equipped with the optional CO2 sensor, this sensor should be calibrated during installation
of the instrument. See Section 9.7.2 for instructions.

The M300E/EM Analyzer is now ready for operation

NOTE
Once you have completed the above set-up procedures, please fill out the Quality Questionnaire that
was shipped with your unit and return it to Teledyne API.
This information is vital to our efforts in continuously improving our service and our products.
THANK YOU.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Frequently Asked Questions

4. FREQUENTLY ASKED QUESTIONS
4.1. FAQ’S
The following is a list from the Teledyne API’s Customer Service Department of the most commonly asked
questions relating to the M300E/EM CO Analyzer.

Q: Why does the ENTR key sometimes disappear on the Front Panel Display?
A: During certain types of adjustments or configuration operations, the ENTR key will disappear if you select
a setting that is nonsensical (such as trying to set the 24-hour clock to 25:00:00) or out of the allowable
range for that parameter (such as selecting an iDAS hold off period of more than 20 minutes).
Once you adjust the setting in question to an allowable value, the ENTR key will re-appear.
Q: Why is the ZERO or SPAN key not displayed during calibration?
A: The M300E/EM disables certain these keys expected span or zero value entered by the users is too
different from the gas concentration actually measured value at the time. This is to prevent the accidental
recalibration of the analyzer to an out-of-range response curve.
EXAMPLE: The span set point is 40 ppm but gas concentration being measured is only 5 ppm.
For more information, see Sections 13.3.3 and 13.3.4.
Q: How do I enter or change the value of my Span Gas?
A: Press the CONC key found under the CAL or CALS buttons of the main SAMPLE display menus to enter
the expected CO span concentration.
See Section 3.6.2.3 or Zero/Span Calibration3.6.2.4 for more information.
Q: Why does the analyzer not respond to span gas?
A: Section 13.3.3 has some possible answers to this question.
Q: Is there an optional midpoint calibration?
A: There is an optional mid-point linearity adjustment; however, midpoint adjustment is applicable only to
applications where CO measurements are expected above 100 ppm. Call Teledyne API’s Service
Department for more information on this topic.
Q: What do I do if the concentration on the instrument's front panel display does not match the value recorded or
displayed on my data logger even if both instruments are properly calibrated?
A: This most commonly occurs for one of the following reasons:
 A difference in circuit ground between the analyzer and the data logger or a wiring problem;
 A scale problem with the input to the data logger.
The analog outputs of the M300E/EM can be manually adjusted to compensate for either or both of these
effects, see Section 7.4.5;
 The analog outputs are not calibrated, which can happen after a firmware upgrade.
Both the electronic scale and offset of the analog outputs can be adjusted (see Section 7.4.3).
Alternately, use the data logger itself as the metering device during calibrations procedures.
Q: How do I perform a leak check?
A: See Section 12.3.3.

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Q: How do I measure the sample flow?
A: Sample flow is measured by attaching a calibrated rotameter, wet test meter, or other flow-measuring
device to the sample inlet port when the instrument is operating. The sample flow should be 800 cm3/min
10%. See Section 12.3.4.
Q: How long does the IR source last?
A: Typical lifetime is about 2-3 years.
Q: Can I automate the calibration of my analyzer?
A: Any analyzer with zero/span valve or IZS option can be automatically calibrated using the instrument’s
AutoCal feature. The setup of this option is located in Section 9.4.
Q: Can I use the IZS option to calibrate the analyzer?
A: Yes. However, whereas this may be acceptable for basic calibration checks, the IZS option is not
permitted as a calibration source in applications following US EPA protocols.
To achieve highest accuracy, it is recommended to use cylinders of calibrated span gases in combination
with a zero air source.
Q: My analyzer has the optional, user-configurable analog output channels. How do I program and use them?
A: Instructions for this can be found in Appendix E .
Q: What is the averaging time for an M300E/EM?
A: The default averaging time, optimized for ambient pollution monitoring, is 150 seconds for stable
concentrations and 10 seconds for rapidly changing concentrations; See Section 11.5.12 for more
information. However, it is adjustable over a range of 0.5 second to 200 seconds (please contact
customer service for more information).

4.2. GLOSSARY
Term

Description/Definition

10BaseT

An Ethernet standard that uses twisted (“T”) pairs of copper wires to transmit at
10 megabits per second (Mbps).

100BaseT

Same as 10BaseT except ten times faster (100 Mbps).

APICOM

Name of a remote control program offered by Teledyne-API to its customers.

ASSY

Assembly.

cm3

metric abbreviation for cubic centimeter. Same as the obsolete abbreviation “cc”.

Chemical formulas that may be included in this document:
CO2
C3H8
CH4
H2O
HC
HNO3
H2S
NO
NO2

carbon dioxide
propane
methane
water vapor
general abbreviation for hydrocarbon
nitric acid
hydrogen sulfide
nitric oxide
nitrogen dioxide
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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Term
NOX
NOy

Frequently Asked Questions

Description/Definition

NH3
O2
O3
SO2

nitrogen oxides, here defined as the sum of NO and NO2
nitrogen oxides, often called odd nitrogen. The sum of NO, NO2 (NOX) plus other
compounds such as HNO3 Definitions vary widely and may include nitrate (NO3), PAN,
N2O and other compounds.
ammonia
molecular oxygen
ozone
sulfur dioxide

DAS

Data Acquisition System

DIAG

Diagnostics, the diagnostic settings of the analyzer.

DHCP

Dynamic Host Configuration Protocol. A protocol used by LAN or Internet
servers to automatically set up the interface protocols between themselves and
any other addressable device connected to the network

DOM

Disk On Module, the analyzer’s central storage area for analyzer firmware,
configuration settings and data This is a 44-pin IDE flash disk that can hold up to
128MB.

DOS

Disk Operating System

DRAM

Dynamic Random Access Memory

DR-DOS

Digital Research DOS

Ethernet

a standardized (IEEE 802.3) computer networking technology for local area
networks (LANs), facilitating communication and sharing resources

FLASH

flash memory is non-volatile, solid-state memory

GFC

Gas Filter Correlation

I C bus

a clocked, bi-directional, serial bus for communication between individual
analyzer components

Integrated Circuit, a modern, semi-conductor circuit that can contain many basic
components such as resistors, transistors, capacitors etc in a miniaturized
package used in electronic assemblies

Internet Protocol

IZS

Internal Zero Span

LAN

Local Area Network

LCD

Liquid Crystal Display

LED

Light Emitting Diode

LPM

Liters Per Minute

M/R

Measure/Reference

NDIR

Non-Dispersive Infrared.

NIST-SRM

National Institute of Standards and Technology - Standard Reference Material.

Printed Circuit Assembly, the  PCB with electronic components, ready to use

PC/AT

Personal Computer / Advanced Technology.

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Term

Description/Definition

PCB

Printed Circuit Board, the bare board without electronic component.

PLC

Programmable Logic Controller, a device that is used to control instruments
based on a logic level signal coming from the analyzer

PFA

Per-Fluoro-Alkoxy, an inert polymer. One of the polymers that du Pont markets
as Teflon®

PLD

Programmable Logic Device

PLL

Phase Lock Loop

PMT

Photo Multiplier Tube, a vacuum tube of electrodes that multiply electrons
collected and charged to create a detectable current signal

P/N (or PN)

Part Number

PSD

Prevention of Significant Deterioration

PTFE

Poly-Tetra-Fluoro-Ethylene, a very inert polymer material used to handle gases
that may react on other surfaces One of the polymers that du Pont markets as
Teflon®

PVC

Poly Vinyl Chloride, a polymer used for downstream tubing

Rdg

Reading.

RS-232

specification and standard describing a serial communication method between
two devices, DTE (Data Terminal Equipment) and DCE (Data Circuit-terminating
Equipment), using a maximum cable-length of 50 feet.

RS-485

specification and standard describing a binary serial communication method
among multiple devices at a data rate faster than RS-232 with a much longer
distance between the host and the furthest device.

SAROAD

Storage and Retrieval of Aerometric Data.

SLAMS

State and Local Air Monitoring Network Plan.

SLPM

Standard Liters Per Minute; liters per minute of a gas at standard temperature
and pressure.

STP

Standard Temperature and Pressure.

TCP/IP

Transfer Control Protocol / Internet Protocol, the standard communications
protocol for Ethernet devices.

TEC

Thermal Electric Cooler.

USB

Universal Serial Bus is a standard connection method to establish
communication between peripheral devices and a host controller, such as a
mouse and/or keyboard and a personal computer.

VARS

Variables, the variable settings of the analyzer.

Z/S

Zero / Span.

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Optional Hardware and Software

5. OPTIONAL HARDWARE AND SOFTWARE
This includes a brief description of the hardware and software options available for the M300E/EM Gas Filter
Correlation Carbon Monoxide Analyzer. For assistance with ordering these options please contact the Sales
department of Teledyne – Advanced Pollution Instruments at:
TOLL-FREE:

800-324-5190

FAX:

858-657-9816

TEL:

858-657-9800

E-MAIL:

api-sales@teledyne.com

WEB SITE:

www.Teledyne-API.com

5.1. EXTERNAL PUMPS (OPTIONS 10A-10E, 11, 13)
A variety of optional pumps are available for the M300E/EM Analyzer. The range of available pump options
meets all typical AC power supply standards while exhibiting the same pneumatic performance.
OPTION
NUMBER

DESCRIPTION

10A

External Pump 115V @ 60 Hz

10B

External Pump 220V @ 50 Hz

10C

External Pump 220V @ 60 Hz

10D

External Pump 100V @ 50 Hz

10E

External Pump 100V @ 60 Hz

Pumpless, external Pump Pack/Rack

High Voltage Internal Pump 240V/50Hz

5.2. RACK MOUNT KITS (OPT 20 TO OPT 23)
There are several options for mounting the analyzer in standard 19” racks. The slides are three-part extensions,
one mounts to the rack, one mounts to the analyzer chassis and the middle part remains on the rack slide when
the analyzer is taken out. The analyzer locks into place when fully extended and cannot be pulled out without
pushing two buttons, one on each side.
The rack mount brackets for the analyzer require that you have a support structure in your rack to support the
weight of the analyzer. The brackets cannot carry the full weight of an analyzer and are meant only to fix the
analyzer to the front of a rack, preventing it from sliding out of the rack accidentally.
OPTION NUMBER

DESCRIPTION

20A

Rack mount brackets with 26 in. chassis slides.

20B

Rack mount brackets with 24 in. chassis slides.

Rack mount brackets only.

Rack Mount for External Pump Pack (No Slides).

Each of these options permits the analyzer to be mounted in a standard 19" x 30" RETMA rack.

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5.3. CARRYING STRAP/HANDLE (OPT 29)
The chassis of the M300E/EM Analyzer allows the user to attach a strap handle for carrying the instrument. The
handle is located on the right side and pulls out to accommodate a hand for transport. When pushed in, the
handle is nearly flush with the chassis, only protruding out about 9 mm (3/8”).

Figure 5-1:

M300E/EM with Carrying Strap Handle and Rack Mount Brackets

Installing the strap handle prevents the use of the rack mount slides, although the rack mount brackets, Option
21, can still be used.

CAUTION
GENERAL SAFETY HAZARD
A fully configured M300E/EM with valve options weighs about 23 kg (51 pounds).
To avoid personal injury we recommend two persons lift and carry the analyzer.
Ensure to disconnect all cables and tubing from the analyzer before carrying it.

5.4. CURRENT LOOP ANALOG OUTPUTS (OPTION 41)
The current loop option adds isolated, voltage-to-current conversion circuitry to the analyzer’s analog outputs. It
converts the DC voltage analog output to a current signal with 0-20 mA output current. The outputs can be
scaled to any set of limits within that 0-20 mA range. However, most current loop applications call for either 2-20
mA or 4-20 mA range. All current loop outputs have a +5% over-range. Ranges with the lower limit set to more
than 1 mA (e.g., 2-20 or 4-20 mA) also have a -5% under-range,
This option may be ordered separately for three of the analog outputs and can be installed as a retrofit.
Figure 5-2 provides installation instructions and illustrates a sample combination of one current output and two
voltage outputs configuration. Section 5.4.1 provides instructions for converting current loop analog outputs to
standard 0-to-5 VDC outputs. Information on calibrating or adjusting these outputs can be found in Section
7.4.3.5.

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Figure 5-2:

Optional Hardware and Software

Current Loop Option Installed on the Motherboard

5.4.1. CONVERTING CURRENT LOOP ANALOG OUTPUTS TO STANDARD
VOLTAGE OUTPUTS
NOTE
Servicing or handling of circuit components requires electrostatic discharge protection, i.e. ESD
grounding straps, mats and containers. Failure to use ESD protection when working with electronic
assemblies will void the instrument warranty.
See Section 14 for more information on preventing ESD damage.

To convert an output configured for current loop operation to the standard 0 to 5 VDC output operation:
1. Turn off power to the analyzer.
2. If a recording device was connected to the output being modified, disconnect it.
3. Remove the top cover.
 Remove the screw located in the top, center of the front panel.
 Remove the screws on both sides that fasten the top cover to the unit.
 Slide the cover back and lift straight up.
4. Remove the screw holding the current loop option to the motherboard.
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5. Disconnect the current loop option PCA from the appropriate connector on the motherboard (see Figure
5-2).
6. Each connector, J19 and J23, requires two shunts. Place one shunt on the two left most pins and the
second shunt on the two pins next to it (see Figure 5-2).
 6 spare shunts (P/N CN0000132) were shipped with the instrument attached to JP1 on the back of
the instruments keyboard and display PCA.
7. Reattach the top case to the analyzer.
8. The analyzer is now ready to have a voltage-sensing, recording device attached to that output.
9. Calibrate the analog output as described in Section 7.4.3.

5.5. EXPENDABLES AND SPARES KITS (OPTIONS 42A, 45)
Expendables Kit, Option 42A: one-year supply of replacement particulate filters (47mm diameter)
Spares Kit, Option 45: spare parts for one unit

5.6. CALIBRATION VALVES (OPTIONS 50A, 50B, 50E, 50H)
The M300E/EM Gas Filter Correlation Carbon Monoxide Analyzer has a variety of available options involving
various valves for controlling the flow of calibration gases. From an operational and software standpoint, all of
the options are the same, only the source of the span and zero gases are different.

5.6.1. GENERAL INFORMATION RELATED TO ALL VALVE OPTIONS
5.6.1.1. Gas Flow Rate
 The minimum span gas flow rate required is 800 cm3/min; however, the US EPA recommends that there
be an excess of flow at least 800 cm3/min of calibration gas.
 Zero air will be supplied at ambient pressure from the local atmosphere.

5.6.1.2. Valve Control
The state of the various valves included in these options can be controlled as follows:
 Manually from the analyzer’s front panel by using the SIGNAL I/O controls located under the DIAG Menu
(see Section 7.3),
 By activating the instrument’s AutoCal feature (see Section 9.4),
 Remotely by using the external digital control inputs (see Section 9.3.3.3), or
 Remotely through the RS-232/485/Ethernet serial I/O ports (see Appendix A-6 for the appropriate
commands).

5.6.2. ZERO/SPAN VALVE (OPTION 50A)
This valve option is intended for applications where:
 Zero air is supplied by a zero air generator like the Teledyne API’s M701 and;
 Span gas is supplied by Gas Dilution Calibrator like the Teledyne API’s M700E or M702.
Internal zero/span and sample/cal valves control the flow of gas through the instrument, but because the
generator and calibrator limit the flow of zero air and span gas, no shutoff valves are required.

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Optional Hardware and Software

5.6.2.1. Internal Pneumatics (OPT 50A)

Figure 5-3:
Table 5-1:

Zero/Span Valve Operating States for Option 52

MODE

VALVE

CONDITION

SAMPLE
(Normal
State)

Sample/Cal

Open to SAMPLE inlet

Zero/Span

Open to IZS inlet

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to IZS inlet

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to PRESSURE SPAN inlet

ZERO CAL
SPAN CAL

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Internal Pneumatic Flow OPT 50A – Zero/Span Valves

Optional Hardware and Software

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

5.6.2.2. Pneumatic Set Up (OPT 50A)
 See Figure 3-2 for the location of gas inlets and

Figure 5-4:

Pneumatic Connections – Option 50A: Zero/Span Calibration Valves

5.6.2.3. Input Gas Venting
The zero air supply and sample gas line MUST be vented in order to ensure that the gases input do not exceed
the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects. These
vents should be:
 At least 0.2m long;
 No more than 2m long and;
 Vented outside the shelter or immediate area surrounding the instrument.

5.6.2.4. Exhaust Outlet
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line should be:
 PTEF tubing; minimum O.D ¼”;
 A maximum of 10 meters long;
 Vented outside the analyzer’s enclosure.
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5.6.3. ZERO/SPAN/SHUTOFF VALVE (OPTION 50B)
This option requires that both zero air and span gas be supplied from external sources.
 Span gas will be supplied from a pressurized bottle of calibrated CO gas.
 A critical flow control orifice, internal to the instrument ensures that the proper flow rate is maintained.
 An internal vent line ensures that the gas pressure of the span gas is reduced to ambient atmospheric
pressure.
 A SHUTOFF valve preserves the span gas source when it is not in use.
 Zero gas is supplied by either an external scrubber or a zero air generator such as the Teledyne API’s
M701.

5.6.3.1. Internal Pneumatics (OPT 50B)

Figure 5-5:

Internal Pneumatic Flow OPT 50B – Zero/Span/Shutoff Valves

Table 5-2:
MODE

VALVE

CONDITION

SAMPLE
(Normal
State)

Sample/Cal

Open to SAMPLE inlet

Zero/Span

Open to IZS inlet

Shutoff Valve

Closed

Sample/Cal

Open to ZERO/SPAN valve

ZERO CAL

SPAN CAL

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Zero/Span Valve Operating States for Option 50B

Zero/Span

Open to IZS inlet

Shutoff Valve

Closed

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to SHUTOFF valve

Shutoff Valve

Open to PRESSURE SPAN Inlet

Optional Hardware and Software

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

5.6.3.2. Pneumatic Set Up (OPT 50B)
See Figure 3-2 for the location of gas inlets and outlets.

Figure 5-6:

Pneumatic Connections – Option 50B: Zero/Pressurized Span Calibration Valves

SAMPLE GAS SOURCE:
Attach a sample inlet line to the sample inlet port. The SAMPLE input line should not be more than 2 meters
long.
 Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-hg above ambient pressure
and ideally should equal ambient atmospheric pressure.
 In applications where the sample gas is received from a pressurized manifold, a vent must be placed on
the sample gas before it enters the analyzer.
CALIBRATION GAS SOURCES:
SPAN GAS:
 Attach a gas line from the pressurized source of calibration gas (e.g. a bottle of NIST-SRM gas) to the
SPAN inlet at 30 psig.
ZERO AIR:
 Zero air is supplied via a zero air generator such as a Teledyne API’s M701.
 An adjustable valve is installed in the zero air supply line to regulate the gas flow.
INPUT GAS VENTING:
The zero air supply and sample gas line MUST be vented in order to ensure that the gases input do not exceed
the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects. These
vents should be:
 At least 0.2m long;
 No more than 2m long and;
 Vented outside the shelter or immediate area surrounding the instrument.
A similar vent line should be connected to the VENT SPAN outlet on the back of the analyzer.
EXHAUST OUTLET
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line should be:
 PTEF tubing; minimum O.D ¼”;
 A maximum of 10 meters long;
 Vented outside the analyzer’s enclosure.

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Optional Hardware and Software

5.6.4. ZERO/SPAN VALVE WITH INTERNAL CO SCRUBBER (OPTION 50H)
Option 50H is operationally and pneumatically similar to Option 50A above, except that the zero air is generated
by an internal zero air scrubber. This means that the IZS inlet can simply be left open to ambient air.
Internal zero/span and sample/cal valves control the flow of gas through the instrument, but because the
generator and calibrator limit the flow of zero air and span gas no shutoff valves are required.

5.6.4.1. Internal Pneumatics (OPT 50H)

Figure 5-7:

Internal Pneumatic Flow OPT 50H – Zero/Span Valves with Internal Zero Air Scrubber
Table 5-3:
MODE

VALVE

CONDITION

SAMPLE
(Normal
State)

Sample/Cal

Open to SAMPLE inlet

Zero/Span

Open to ZERO AIR scrubber

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to ZERO AIR scrubber

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to PRESSURE SPAN inlet

ZERO CAL

SPAN CAL

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Zero/Span Valve Operating States for Option 50H

Optional Hardware and Software

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

5.6.4.2. Pneumatic Set Up (OPT 50H)
See Figure 3-2 for the location of gas inlets and outlets and span gas no shutoff valves are required.

Figure 5-8:

Pneumatic Connections – Option 50H: Zero/Span Calibration Valves

SAMPLE GAS SOURCE:
Attach a sample inlet line to the sample inlet port. The SAMPLE input line should not be more than 2 meters
long.
 Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-Hg above ambient pressure
and ideally should equal ambient atmospheric pressure.
 In applications where the sample gas is received from a pressurized manifold, a vent must be placed on
the sample gas before it enters the analyzer.
CALIBRATION GAS SOURCES:
SPAN GAS:
 Attach a gas line from the source of calibration gas (e.g. a Teledyne API’s M700E Dynamic Dilution
Calibrator) to the SPAN inlet.
ZERO AIR:
 Zero air is supplied internally via a zero air scrubber that draws ambient air through the IZS inlet.
INPUT GAS VENTING:
The zero air supply and sample gas line MUST be vented in order to ensure that the gases input do not exceed
the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects. These
vents should be:
 At least 0.2m long;
 No more than 2m long and;
 Vented outside the shelter or immediate area surrounding the instrument.
EXHAUST OUITLET
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line should be:
 PTEF tubing; minimum O.D ¼”;
 A maximum of 10 meters long;
 Vented outside the analyzer’s enclosure.
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5.6.5. ZERO/SPAN/SHUTOFF WITH INTERNAL ZERO AIR SCRUBBER
(OPTION 50E)
5.6.5.1. Internal Pneumatics (OPT 50E)

Figure 5-9:

Internal Pneumatic Flow OPT 50E – Zero/Span/Shutoff Valves with Internal Zero Air
Scrubber

Table 5-4:
Mode

Valve

Condition

SAMPLE
(Normal
State)

Sample/Cal

Open to SAMPLE inlet

Zero/Span

Open to internal ZERO AIR scrubber

Shutoff Valve

Closed

Sample/Cal

Open to zero/span valve

Zero/Span

Open to internal ZERO AIR scrubber

Shutoff Valve

Closed

Sample/Cal

Open to ZERO/SPAN valve

Zero/Span

Open to SHUTOFF valve

Shutoff Valve

Open to PRESSURE SPAN inlet

ZERO CAL

SPAN CAL

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Zero/Span Valve Operating States for Option 50E

Optional Hardware and Software

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

5.6.5.2. Pneumatic Set Up (OPT 50E)
See Figure 3-2 for the location of gas inlets and outlets.

Figure 5-10:

Pneumatic Connections – Option 50E: Zero/Span Calibration Valves

SAMPLE GAS SOURCE:
Attach a sample inlet line to the sample inlet port. The SAMPLE input line should not be more than 2 meters
long.
 Maximum pressure of any gas at the sample inlet should not exceed 1.5 in-hg above ambient pressure
and ideally should equal ambient atmospheric pressure.
 In applications where the sample gas is received from a pressurized manifold, a vent must be placed on
the sample gas before it enters the analyzer.
CALIBRATION GAS SOURCES:
SPAN GAS:
 Attach a gas line from the pressurized source of calibration gas (e.g. a bottle of NIST-SRM gas) to the
span inlet.
 Span gas can by generated by a M700E Dynamic Dilution Calibrator.
ZERO AIR:
 Zero air is supplied internally via a zero air scrubber that draws ambient air through the IZS inlet.
INPUT GAS VENTING:
The zero air supply and sample gas line MUST be vented in order to ensure that the gases input do not exceed
the maximum inlet pressure of the analyzer as well as to prevent back diffusion and pressure effects. These
vents should be:
 At least 0.2m long;
 No more than 2m long and;
 Vented outside the shelter or immediate area surrounding the instrument.
A similar vent line should be connected to the VENT SPAN outlet on the back of the analyzer.
EXHAUST OUITLET
Attach an exhaust line to the analyzer’s EXHAUST outlet fitting. The exhaust line should be:
 PTEF tubing; minimum O.D ¼”;
 A maximum of 10 meters long;
 Vented outside the analyzer’s enclosure.
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5.7. COMMUNICATION OPTIONS
5.7.1. RS-232 MODEM CABLE (OPTION 60A)
Table 5-5:
OPTION NO.

M300E/EM Modem Cable Options
DESCRIPTION

60A

Shielded, straight-through DB-9F to DB-25M cable of about 1.8 m length.
 This cable is used to interface with older computers or code activated switches with
a DB-25 serial connectors.

60B

Shielded, straight-through DB-9F to DB-9F cable of about 1.8 m length, which should fit
most computers of recent build.

60C

CAT5 7’ cable, a shielded straight through cable, 2 meters in length, terminated with
RJ45 connectors.
 For use with the M300E/EM Analyzer’s optional Ethernet Card (Option 63A).

5.7.2. RS-232 MULTIDROP (OPTION 62)
The multidrop option is used with RS232 and utilizes both DB-9 connectors on the rear panel to enable
communications of up to eight analyzers with the host computer over a chain of RS-232 cables. It is subject to
the distance limitations of the RS-232 standard.

Figure 5-11:

M300E/EM Multidrop Card Seated on CPU above Disk on Module

The option consists of a small printed circuit assembly, which plugs into to the analyzer’s CPU card and is
connected to the RS-232 and COM2 DB9 connectors on the instrument’s back panel via a cable to the
motherboard.
 One OPT 62 and one OPT 60B are required for each analyzer along the multidrop network.
See Section 8.2 for information regarding setting up a multidrop network for M300E/EM Analyzers.

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5.7.3. ETHERNET (OPTION 63A)
The ETHERNET option allows the analyzer to be connected to any Ethernet Local Area Network (LAN) running
TCP/IP. The local area network must have routers capable of operating at 10BaseT. If internet access is
available through the LAN, this option also allows communication with the instrument over the public internet.
Maximum communication speed is limited by the RS-232 port to 115.2 kBaud.
When installed, this option is electronically connected to the instrument’s COM2 serial port making that port no
longer available for RS-232/RS-485 communications.
The option consists of a Teledyne API’s designed Ethernet card (see Figure 5-12 and Figure 5-13), and a 7-foot
long CAT-5 network cable, terminated at both ends with standard RJ-45 connectors.

Figure 5-12:

Figure 5-13:

M300E/EM Ethernet Card

M300E/EM Rear Panel with Ethernet Installed

For more information on setting up and using this option, see Section 8.4.

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5.7.4. ETHERNET + MULTIDROP (OPT 63C)
This option allows the instrument to communicate on both RS-232 and ETHERNET networks simultaneously. It
includes the following:
 RS-232 MULTIDROP (OPT 62)
 ETHERNET (OPT 63A)

5.8. SECOND GAS SENSORS
5.8.1. OXYGEN SENSOR (OPTION 65A)
5.8.1.1. Theory of Operation - Paramagnetic measurement of O2
The oxygen sensor used in the M300E/EM Analyzer utilizes the fact that oxygen is attracted into strong magnetic
field while most other gases are not, to obtain fast, accurate oxygen measurements.
The sensor’s core is made up of two nitrogen filled glass spheres, which are mounted on a rotating suspension
within a magnetic field (see Figure 5-14). A mirror is mounted centrally on the suspension and light is shone
onto the mirror that reflects the light onto a pair of photocells. The signal generated by the photocells is passed
to a feedback loop, which outputs a current to a wire winding (in effect, a small DC electric motor) mounted on
the suspended mirror.
Oxygen from the sample stream is attracted into the magnetic field displacing the nitrogen filled spheres and
causing the suspended mirror to rotate. This changes the amount of light reflected onto the photocells and
therefore the output levels of the photocells. The feedback loop increases the amount of current fed into the
winding in order to move the mirror back into its original position. The more O2 present, the more the mirror
moves and the more current is fed into the winding by the feedback control loop.
A sensor measures the amount of current generated by the feedback control loop which is directly proportional to
the concentration of oxygen within the sample gas mixture.

Figure 5-14:

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Oxygen Sensor - Principle of Operation
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5.8.1.2. Operation within the M300E/EM Analyzer
The oxygen sensor option is transparently integrated into the core analyzer operation. All functions can be
viewed or accessed through the front panel, just like the functions for CO.
 The O2 concentration is displayed in the upper right-hand corner, alternating with CO concentration.
 Test functions for O2 slope and offset are viewable from the front panel along with the analyzer’s other test
functions.
 O2 sensor calibration is performed via the front panel CAL function and is performed in a nearly identical
manner as the standard CO calibration. See Section 9.7.1 for more details.
 Stability of the O2 sensor can be viewed via the front panel (see Section 9.7.1.3).
The O2 concentration range is 0-100% (user selectable) with 0.1% precision and accuracy.
The temperature of the O2 sensor is maintained at a constant 50° C by means of a PID loop and can be viewed
on the front panel as test function O2 TEMP.
The O2 sensor assembly itself does not have any serviceable parts and is enclosed in an insulated canister.

5.8.1.3. Pneumatic Operation of the O2 Sensor
 Pneumatically, the O2 sensor draws a flow of 80 cm³/min in addition to the normal sample flow rate. It is
separately controlled with its own critical flow orifice.

Figure 5-15:

M300E/EM – Internal Pneumatics with O2 Sensor Option 65A

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5.9. CARBON DIOXIDE SENSOR (OPTION 67A)
The optional CO2 sensor allows the M300E/EM to measure both CO and CO2 simultaneously. This option
includes a CO2 sensor probe, a Logic PCA that conditions the probe output and issues a 0-5 VDC signal to the
analyzer’s CPU that is used to compute the CO2 concentration.
The M300E/EM receives this input, scales it based on the values of the CO2_SLOPE and CO2_OFFSET
recorded during calibration (see Section 9.7.2).

Figure 3-4 shows the location of the Sensor Probe and PCA within the M300E/EM.
The CO2 sensor assembly itself does not have any serviceable parts and is enclosed in an insulated canister.

5.9.1. CO2 SENSOR RANGES AND SPECIFICATIONS
Table 5-6:

CO2 Sensor - Available Ranges

OPTION NO.

RANGES

ANALYZER MODEL(S)

67A

0-20%

M300EM

Table 5-7:

CO2 Sensor Specifications

Accuracy at 25˚C
Linearity
Typical Temperature Dependence
Long Term Stability
Response time
Warm up time
Power consumption

0.02% CO + 2% of reading
0.5 % of full scale
-0.1% FS / ˚C
<+15 % FS / 2 years
20 seconds
5 minutes
2.5 watts

5.9.2. THEORY OF OPERATION
5.9.2.1. NDIR measurement of CO2
The optional CO2 sensor is a silicon based Non-Dispersive Infrared (NDIR) sensor. It uses a single-beam, dual
wavelength measurement method.
An infrared source at one end of the measurement chamber emits IR radiation into the sensor’s measurement
chamber where light at the 4.7 μm wavelength is partially absorbed by any CO2 present. A special light filter
called a Fabry-Perot Interferometer (FPI) is electronically tuned so that only light at the absorption wavelength of
CO2 is allowed to pass and be detected by the sensor’s IR detector.
A reference measurement is made by electronically shifting the filter band pass wavelength so that no IR at the
CO2 absorption wavelength is let through.

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Figure 5-16:

CO2 sensor Theory of Operation

The sensor computes the ratio between the reference signal and the measurement signal to determine the
degree of light absorbed by CO2 present in the sensor chamber. This dual wavelength method the CO2
measurement allows the instrument to compensate for ancillary effects like sensor aging and contamination.

5.9.2.2. Operation within the M300E/EM Analyzer
The CO2 sensor option is transparently integrated into the core analyzer operation. All functions can be viewed
or accessed through the front panel, just like the functions for CO.
 The CO2 concentration is displayed in the upper right-hand corner, alternating with CO concentration.
 Test functions for CO2 slope and offset are viewable from the front panel along with the analyzer’s other
test functions.
 CO2 sensor calibration is performed via the front panel CAL function and is performed in a nearly identical
manner as the standard CO calibration. See Section 9.7.2 for more details.
 Stability of the CO2 sensor can be viewed via the front panel (see Section 9.7.2.3).
The CO2 concentration range is 0-20%. See Section 9.7.2.1 for information on calibrating the CO2.

5.9.2.3. Pneumatic Operation of the CO2 Sensor
Pneumatically, the CO2 sensor is placed in line with the sample gas line between the particulate filter and the
analyzer’s sample chamber. It does not alter the gas flow rate of the sample through the analyzer.

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Figure 5-17:

Optional Hardware and Software

M300E/EM – Internal Pneumatics with CO2 Sensor Option 66

5.9.2.4. Electronic Operation of the CO2 Sensor
The CO2 PCA which is mounted to the rear side of the Relay Board Mounting Bracket controls the CO2 Sensor.
It converts the sensor’s digital output to an analog voltage that is measured with the motherboard and draws 12
VDC from the analyzer via the relay card from which converts to fit the power needs of the probe and its own
onboard logic. It outputs a 0-5 VDC analog signal to the analyzer’s CPU via the motherboard that corresponds
to the concentration of CO2 measured by the probe.

Figure 5-18:

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CO2 Sensor Option PCA Layout and Electronic Connections

Optional Hardware and Software

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

5.10. CONCENTRATION ALARM RELAY (OPTION 61)
The Teledyne API “E” series analyzers have an option for four (4) “dry contact” relays on the rear panel of
the instrument. This relay option is different from and in addition to the “Contact Closures” that come
standard on all TAPI instruments. The relays have 3 pins that have connections on the rear panel (see
Figure 5-19). They are a Common (C), a Normally Open (NO), & a Normally Closed (NC) pin.

Figure 5-19:

Alarm 1
Alarm 2
Alarm 3
Alarm 4

Concentration Alarm Relay

“System OK 2”
“Conc 1”
“Conc 2”
“Range Bit”

“Alarm 1” Relay
Alarm 1 which is “System OK 2” (system OK 1, is the status bit) is in the energized state when the
instrument is “OK” & there are no warnings. If there is a warning active or if the instrument is put into the “DIAG”
mode, Alarm 1 will change states. This alarm has “reverse logic” meaning that if you put a meter across the
Common & Normally Closed pins on the connector you will find that it is OPEN when the instrument is OK. This
is so that if the instrument should turn off or loose power, it will change states & you can record this with a data
logger or other recording device.
“Alarm 2” Relay & “Alarm 3” Relay
The “Alarm 2 Relay” on the rear panel, is associated with the “Concentration Alarm 1” set point in the
software & the “Alarm 3 Relay” on the rear panel is associated with the “Concentration Alarm 2” set point in the
software.
Alarm 2 Relay
Alarm 3 Relay
Alarm 2 Relay
Alarm 3 Relay

CO Alarm 1 = xxx PPM
CO2 Alarm 2 = xxx PPM
CO Alarm 1 = xxx PPM
CO2 Alarm 2 = xxx PPM

The Alarm 2 Relay will be turned on any time the concentration set-point is exceeded & will return to its
normal state when the concentration value goes back below the concentration set-point.
Even though the relay on the rear panel is a NON-Latching alarm & resets when the concentration goes
back below the alarm set point, the warning on the front panel of the instrument will remain latched until it is
cleared. You can clear the warning on the front panel by either pushing the CLR button on the front panel or
through the serial port.
In instruments that sample more than one gas type, there could be more than one gas type triggering the
Concentration 1 Alarm (“Alarm 2” Relay). For example, the M300EM instrument can monitor both CO & CO2

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Optional Hardware and Software

gas. The software is flexible enough to allow you to configure the alarms so that you can have 2 alarm levels for
each gas.
CO Alarm 1 = 20 PPM
CO Alarm 2 = 100 PPM
CO2 Alarm 1 = 20 PPM
CO2 Alarm 2 = 100 PPM
In this example, CO Alarm 1 & CO2 Alarm 1 will both be associated with the “Alarm 2” relay on the rear panel.
This allows you do have multiple alarm levels for individual gasses.
A more likely configuration for this would be to put one gas on the “Alarm 1” relay & the other gas on the “Alarm
2” relay.
CO Alarm 1 = 20 PPM
CO Alarm 2 = Disabled
CO2 Alarm 1 = Disabled
CO2 Alarm 2 = 100 PPM
“Alarm 4” Relay
This relay is connected to the “range bit”. If the instrument is configured for “Auto Range” & the
instrument goes up into the high range, it will turn this relay on.

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5.11. SPECIAL FEATURES
5.11.1. DILUTION RATIO OPTION
The Dilution Ratio Option is a software option that is designed for applications where the Sample gas is diluted
before being analyzed by the M300E. Typically this occurs in Continuous Emission Monitoring (CEM)
applications where the quality of gas in a smoke stack is being tested and the sampling method used to remove
the gas from the stack dilutes the gas.
Once the degree of dilution is known, this feature allows the user to add an appropriate scaling factor to the
analyzer’s CO concentration calculation so that the Measurement Range and concentration values displayed on
the instrument’s Front Panel Display and reported via the Analog and Serial Outputs reflect the undiluted values.
Instructions for using the dilution ratio option can be found in Section 6.6.5.

5.11.2. MAINTENANCE MODE SWITCH
API’s instruments can be equipped with a switch that places the instrument in maintenance mode. When
present, the switch is accessed by opening the hinged front panel and is located on the rearward facing side of
the display/keyboard driver PCA, on the left side, near the particulate filter.
When in maintenance mode the instrument ignores all commands received via the COMM ports that alter the
operation state of the instrument. This includes all calibration commands, diagnostic menu commands and the
reset instrument command. The instrument continues to measure concentration and send data when requested.
This option is of particular use for instruments connected to multidrop or Hessen protocol networks.

5.11.3. SECOND LANGUAGE SWITCH
API’s instruments can be equipped with a switch that activates an alternate set of display message in a language
other than the instrument’s default language. To activate this feature, the instrument must have a specially
programmed Disk-on-Module (DOM) containing the second language. Call Customer Service for this DOM.

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OPERATING INSTRUCTIONS

PART II
–
OPERATING INSTRUCTIONS

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6. BASIC OPERATION
The M300E/EM Analyzer is a computer-controlled analyzer with a dynamic menu interface that allows all major
operations to be controlled from the front panel display and keyboard through user-friendly menus (a complete
set of menu trees is located in Appendix A of this manual).
This section includes step-by-step instructions for using the display/keyboard to set up and operate the
M300E/EM Analyzer's basic CO measurement features and functional modes.

6.1. OVERVIEW OF OPERATING MODES
The M300E/EM software has a variety of operating modes. Most commonly, the analyzer will be operating in
Sample Mode. In this mode a continuous read-out of the CO concentration is displayed on the front panel. If
the analyzer is configured to measure more than one gas (e.g. CO along with O2 or CO2) the display will cycle
through gas list.
While in SAMPLE mode calibrations can be performed and TEST functions as well as WARNING messages can
be examined. If any of the analyzer’s analog outputs are enabled, the current concentration value will be
available at the analog output connector.
The second most important operating mode is SETUP mode. This mode is used for performing certain
configuration operations, such as programming the iDAS system or the configurable analog output channels, or
setting up the analyzer’s serial communication channels (RS-232/RS-485/Ethernet). The SETUP mode is also
used for performing various diagnostic tests during troubleshooting.
Message Field
Concentration Field

Mode Field

SAMPLE
CAL

Figure 6-1:

CO= XX.XX
SETUP

Front Panel Display

The mode field of the front panel display indicates to the user which operating mode the unit is currently running.
Besides SAMPLE and SETUP, other modes the analyzer can be operated in are:
Table 6-1:

MODE

Analyzer Operating Modes

EXPLANATION

SAMPLE

Sampling normally, flashing text indicates adaptive filter is on.

SAMPLE A

Indicates that unit is in Sample Mode while AUTOCAL feature is active (Internal Span Only).

M-P CAL

This is the basic calibration mode of the instrument and is activated by pressing the CAL key.
SETUP mode is being used to configure the analyzer. The gas measurement will continue during this
process. The revision of the M300E/EM firmware being run will appear after the word “SETUP”

SETUP [X.X]
ZERO CAL [type]
LO CAL [type]

1,2 & 3

2&3

SPAN CAL [type]
DIAG Mode

1,2 & 3

Unit is performing ZERO calibration procedure.
Unit is performing LOW SPAN (midpoint) cal check procedure.
Unit is performing SPAN calibration procedure.
One of the analyzer’s diagnostic modes is active (Section 7.3).

[type:]
1
A: Initiated automatically by the AUTOCAL feature (Internal Span Only).
2
M: initiated manually by the user via the front panel controls.
3
R: initiated remotely through the COM ports or digital control inputs.

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6.2. SAMPLE MODE
This is the analyzer’s standard operating mode. In this mode the instrument is analyzing the gas in the sample
chamber, calculating CO concentration and reporting this information to the user via the front panel display, the
analog outputs and, if set up properly, the RS-232/RS-485/Ethernet ports.
NOTE
A value of “XXXX” displayed in the CO Concentration field means that the M/R ratio is invalid because
CO REF is either too high (> 4950 mVDC) or too low (< 1250 VDC).
A value of “XXXX” displayed for any of the TEST functions indicates an out-of-range reading or the
analyzer’s inability to calculate it.
A variety of TEST functions are available for viewing at the front panel whenever the analyzer is at the MAIN
MENU. These functions provide information about the various functional parameters related to the analyzers
operation and its measurement of gas concentrations. This information is particularly a performance problem
during troubleshooting (see Section 13.1.2).
To view these TEST functions, press,

Figure 6-2:

Viewing M300E/EM Test Functions

NOTE
All pressure measurements are represented in terms of absolute pressure. Absolute, atmospheric
pressure is 29.92 in-Hg-A at sea level. It decreases about 1 in-Hg per 300 m gain in altitude. A variety of
factors such as air conditioning and passing storms can cause changes in the absolute atmospheric
pressure.

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Table 6-2:
PARAMETER

Basic Operation

Test Functions Defined

DISPLAY TITLE

UNITS

MEANING

Stability

STABIL

PPB3, PPM
UGM3, MGM

Standard deviation of CO concentration readings. Data points are
recorded every ten seconds using the last 25 data points. This
function can be reset to show O2 or CO2 stability in instruments with
those sensor options installed.

Range

RANGE
RANGE11
1
RANGE2

PPB, PPM,
UGM, MGM

The full scale limit at which the reporting range of the analyzer is
currently set. THIS IS NOT the Physical Range of the instrument.
See Section 6.6.1 for more information.

O2 RANGE

CO2 RANGE

O2 Range 1
2

CO2 Range

The range setting for the optional O2 Sensor.
The range setting for the optional CO2 Sensor.

CO Measure

CO MEAS

The demodulated, peak IR detector output during the measure
portion of the GFC Wheel cycle.

CO Reference

CO REF

The demodulated, peak IR detector output during the reference
portion of the GFC Wheel cycle.

Measurement /
Reference Ratio

MR Ratio

The result of CO MEAS divided by CO REF. This ratio is the
primary value used to compute CO concentration. The value
displayed is not linearized.

Sample Pressure

PRES

In-Hg-A

The absolute pressure of the Sample gas as measured by a
pressure sensor located inside the sample chamber.

Sample Flow

SAMPLE FL

3
cm /min

Sample mass flow rate as measured by the flow rate sensor in the
sample gas stream.

Sample
Temperature
Bench
Temperature
Wheel
Temperature

SAMP TEMP

C

The temperature of the gas inside the sample chamber.

BENCH TEMP

C

Optical bench temperature.

WHEEL TEMP

C

GFC Wheel temperature.

Box Temperature

BOX TEMP

C

The temperature inside the analyzer chassis.

O2 Cell
Temperature3
Photo-detector
Temp. Control
Voltage

O2 CELL TEMP3

C

The current temperature of the O2 sensor measurement cell.

PHT DRIVE

The drive voltage being supplied to the thermoelectric coolers of the
IR photo-detector by the sync/demod Board.

Slope

SLOPE

The sensitivity of the instrument as calculated during the last
calibration activity.

Offset

OFFSET

The overall offset of the instrument as calculated during the last
calibration activity.

O2 SLOPE

O2 slope, computed during zero/span calibration.

O2 OFFSET

O2 offset, computed during zero/span calibration.

CO2 SLOPE

CO2 slope, computed during zero/span calibration.

CO2 OFFSET

CO2 offset, computed during zero/span calibration.

TIME

The current time. This is used to create a time stamp on iDAS
readings, and by the AUTOCAL feature to trigger calibration events.

O2 Sensor
1
Slope
O2 Sensor Offset

CO2 Sensor
2
Slope
CO2 Sensor
Offset 2
Current Time
1

Only appears when the optional O2 sensor is installed.
Only appears when the optional CO2 sensor is installed.
3
Only available on the M300E.
2

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6.3. WARNING MESSAGES
The most common instrument failures will be reported as a warning on the analyzer’s front panel and through the
COMM ports. Section 13.1.1 explains how to use these messages to troubleshoot problems. Section 6.3 shows
how to view and clear warning messages.
Table 6-3:

List of Warning Messages

MEANING

MESSAGE
ANALOG CAL WARNING

The instrument’s A/D circuitry or one of its analog outputs is not calibrated.

BENCH TEMP WARNING

The temperature of the optical bench is outside the specified limits.

BOX TEMP WARNING

The temperature inside the chassis is outside the specified limits.

CANNOT DYN SPAN

Remote span calibration failed while the dynamic span feature was set to turned on.

CANNOT DYN ZERO3

Remote zero calibration failed while the dynamic zero feature was set to turned on.

CONC ALRM1 WARNING1

Concentration alarm 1 is enabled and the measured CO level is ≥ the set point.

Concentration alarm 2 is enabled and the measured CO level is ≥ the set point.

CONC ALRM2 WARNING
CONFIG INITIALIZED

Configuration storage was reset to factory configuration or erased.

DATA INITIALIZED

iDAS data storage was erased.
2

O2 CELL TEMP WARN

PHOTO TEMP WARNING

The temperature of the IR photo detector is outside the specified limits.

REAR BOARD NOT DET

The CPU is unable to communicate with the motherboard.

RELAY BOARD WARN

The firmware is unable to communicate with the relay board.

SAMPLE FLOW WARN

The flow rate of the sample gas is outside the specified limits.

SAMPLE PRESS WARN

Sample gas pressure outside of operational parameters.

SAMPLE TEMP WARN
SOURCE WARNING
SYSTEM RESET

WHEEL TEMP WARNING
1

O2 sensor cell temperature outside of warning limits.

The temperature of the sample gas is outside the specified limits.

The IR source may be faulty.
The computer was rebooted.
The Gas Filter Correlation Wheel temperature is outside the specified limits.

Alarm warnings only present when 0ptional alarm package is activated.
Only enabled when the optional O2 Sensor is installed.

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Basic Operation

To view and clear warning messages:

Figure 6-3:

Viewing and Clearing M300E/EM WARNING Messages

6.4. CALIBRATION MODE
Press the CAL key to switch the M300E/EM into calibration mode. In this mode the user can, in conjunction with
introducing zero or span gases of known concentrations into the analyzer, cause it to adjust and recalculate the
slope (gain) and offset of the its measurement range. This mode is also used to check the current calibration
status of the instrument.
 For more information about setting up and performing standard calibration operations or checks, see
Section 9.
 For more information about setting up and performing EPA equivalent calibrations, see Section 10.
If the instrument includes one of the available zero/span valve options, the SAMPLE mode display will also
include CALZ and CALS keys. Pressing either of these keys also puts the instrument into calibration mode.
The CALZ key is used to initiate a calibration of the analyzer’s zero point using internally generated zero air.
The CALS key is used to calibrate the span point of the analyzer’s current reporting range using span gas.
For more information concerning calibration valve options, see Section 5.6
For information on using the automatic calibration feature (ACAL) in conjunction with the one of the calibration
valve options, see Section 9.4.

NOTE
It is recommended that this span calibration be performed at 80-90% of full scale of the analyzer’s
currently selected reporting range.
EXAMPLES:
If the reporting range is set for 0 to 50 ppm, an appropriate span point would be 40-45 ppm.
If the of the reporting range is set for 0 to 1000 ppb, an appropriate span point would be 800-900 ppb.

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6.5. SETUP MODE
The SETUP mode contains a variety of choices that are used to configure the analyzer’s hardware and software
features, perform diagnostic procedures, gather information on the instruments performance and configure or
access data from the internal data acquisition system (iDAS).
NOTE
Any changes made to a variable during one of the following procedures is not acknowledged by the
instrument until the ENTR Key is pressed.
If the EXIT key is pressed before the ENTR key, the analyzer will beep alerting the user that the newly
entered value has been lost.
For a visual representation of the software menu trees, refer to Appendix A-1.
The areas accessible under the SETUP mode are shown in Table 6-4 and Table 6-5:
Table 6-4:
MODE OR FEATURE

KEYPAD
LABEL

Analyzer Configuration

CFG

Lists key hardware and software configuration information

6.5.1

Auto Cal Feature

ACAL

Used to set up and operate the AutoCal feature.
Only appears if the analyzer has one of the internal valve
options installed.

6.5.2
and
9.4

DAS

Used to set up the iDAS system and view recorded data

7.1

Internal Data Acquisition
(iDAS)
Analog Output Reporting
Range Configuration
Calibration Password Security

RNGE

Internal Clock Configuration

PASS
CLK

Advanced SETUP features

Table 6-5:
MODE OR FEATURE

KEYPAD
LABEL

External Communication
Channel Configuration

COMM

System Status Variables

VARS

System Diagnostic Features
and
Analog Output Configuration

DIAG

Alarm Limit Configuration1

ALRM

Primary Setup Mode Features and Functions
MANUAL
SECTION

DESCRIPTION

Used to configure the output signals generated by the
instruments Analog outputs.
Turns the calibration password feature ON/OFF.

6.5.3

Used to Set or adjust the instrument’s internal clock.

6.5.4

6.6

See
Table 6-5

This button accesses the instruments secondary setup menu.

Secondary Setup Mode Features and Functions
MANUAL
SECTION

DESCRIPTION

Used to set up and operate the analyzer’s various serial
channels including RS-232,RS-485, modem communication
and/or Ethernet access.
Used to view various variables related to the instruments current
operational status.
 Changes made to any variable are not recorded in the
instrument’s memory until the ENTR key is pressed.
 Pressing the EXIT key ignores the new setting.
Used to access a variety of functions that are used to configure,
test or diagnose problems with a variety of the analyzer’s basic
systems.
Most notably, the menus used to configure the output signals
generated by the instruments Analog outputs are located here.
Used to turn the instrument’s two alarms on and off as well as
set the trigger limits for each.

8.1

7.2

7.3

7.5

Alarm warnings only present when optional alarm package is activated.

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6.5.1. SETUP  CFG: CONFIGURATION INFORMATION
Pressing the CFG key displays the instrument’s configuration information. This display lists the analyzer model,
serial number, firmware revision, software library revision, CPU type and other information.
 Special instrument or software features or installed options may also be listed here.
 Use this information to identify the software and hardware installed in your M300E/EM Analyzer when
contacting customer service.
To access the configuration table, press:

6.5.2. SETUP  ACAL: AUTOMATIC CALIBRATION
Instruments with one of the internal valve options installed can be set to automatically run calibration procedures
and calibration checks. These automatic procedures are programmed using the submenus and functions found
under the ACAL menu.
A menu tree showing the ACAL menu’s entire structure can be found in Appendix A-1 of this manual.
Instructions for using the ACAL feature are located in the Section 9.4 of this manual along with all other
information related to calibrating the M300E/EM Analyzer.

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6.5.3. SETUP  PASS: PASSWORD FEATURE
The M300E/EM provides password protection of the calibration and setup functions to prevent unauthorized
adjustments. When the passwords have been enabled in the PASS menu item, the system will prompt the user
for a password anytime a password-protected function (e.g., SETUP) is requested. This allows normal operation
of the instrument, but requires the password (101) to access to the menus under SETUP. When PASSWORD is
disabled (SETUP>OFF), any operator can enter the Primary Setup (SETUP) and Secondary Setup
(SETUP>MORE) menus. Whether PASSWORD is enabled or disabled, a password (default 818) is required to
enter the VARS or DIAG menus in the SETUP>MORE menu.
Table 6-6:

Password Levels

PASSWORD

LEVEL

Null (000)

Operation

All functions of the MAIN menu: TEST, GEN, initiate SEQ , MSG, CLR

MENU ACCESS ALLOWED

101

Configuration/Maintenance

Access to Primary and Secondary SETUP Menus when PASSWORD
enabled

818

Configuration/Maintenance

Access to Secondary SETUP Submenus VARS and DIAG whether
PASSWORD is enabled or disabled.

To enable or disable passwords, press:

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Example: If all passwords are enabled, the following keypad sequence would be required to enter the SETUP
menu:

NOTE
The instrument still prompts for a password when entering the VARS and DIAG menus, even if
passwords are disabled. It will display the default password (818) upon entering these menus.
The user only has to press ENTR to access the password-protected menus but does not have to enter
the required number code.

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6.5.4. SETUP  CLK: SETTING THE M300E/EM ANALYZER’S INTERNAL
CLOCK
6.5.4.1. Setting the internal Clock’s Time and Day
The M300E/EM has a time of day clock that supports the DURATION step of the automatic calibration (ACAL)
sequence feature, time of day TEST function, and time stamps on for the iDAS feature and most COMM port
messages.
To set the clock’s time and day, press:

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

6.5.4.2. Adjusting the Internal Clock’s Speed
In order to compensate for CPU clocks which run faster or slower, you can adjust a variable called CLOCK_ADJ
to speed up or slow down the clock by a fixed amount every day.
The CLOCK_AD variable is accessed via the VARS submenu: To change the value of this variable, press:

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6.6. SETUP  RNGE: ANALOG OUTPUT REPORTING RANGE
CONFIGURATION
6.6.1. PHYSICAL RANGE VERSUS ANALOG OUTPUT REPORTING
RANGES
Functionally, the M300E Family of CO Analyzers have one hardware PHYSICAL RANGE that is capable of
determining CO concentrations between across a very wide array of values.
Table 6-7:

M300E Family Physical range by Model
MODEL

RANGE

M300E

0 – 1000 ppm

M300EM

0 – 5000 ppm

This architecture improves reliability and accuracy by avoiding the need for extra, switchable, gain-amplification
circuitry. Once properly calibrated, the analyzer’s front panel will accurately report concentrations along the
entire span of its physical range.
Because many applications use only a small part of the analyzer’s full physical range, this can create data
resolution problems for most analog recording devices. For example, in an application where an M300E is being
used to measure an expected concentration of typically less than 50 ppm CO, the full scale of expected values is
only 4% of the instrument’s full 1000 ppm measurement range. Unmodified, the corresponding output signal
would also be recorded across only 2.5% of the range of the recording device.
The M300E/EM Analyzers solve this problem by allowing the user to select a scaled reporting range for the
analog outputs that only includes that portion of the physical range relevant to the specific application.
Only this REPORTING RANGE of the analog outputs is scaled, the physical range of the analyzer and the
readings displayed on the front panel remain unaltered.
NOTE
Both the iDAS values stored in the CPU’s memory and the concentration values reported on the front
panel are unaffected by the settings chosen for the reporting range(s) of the instrument.

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6.6.2. ANALOG OUTPUT RANGES FOR CO CONCENTRATION
The analyzer has several active analog output signals related accessible through a connector on the rear panel
(see Figure 3-2).

ANALOG OUT
Only active if the Optional
CO2 or O2 Sensor is

CO concentration
outputs

Test Channel
A1
+

LOW range when DUAL
mode is selected

Figure 6-4:

A2
-

A3
-

A4
-

HIGH range when DUAL
mode is selected

Analog Output Connector Pin Out

All four outputs can be configured either at the factory or by the user for full scale outputs of 0.1 VDC, 1VDC,
5VDC or 10VDC.
Additionally A1, A2 and A3 may be equipped with optional 0-20 mADC current loop drivers and configured for
any current output within that range (e.g. 0-20, 2-20, 4-20, etc.). The user may also adjust the signal level and
scaling of the actual output voltage or current to match the input requirements of the recorder or datalogger (See
Section 7.4.5).
The A1 and A2 channels output a signal that is proportional to the CO concentration of the sample gas. Several
modes are available which allow them to operate independently or be slaved together (See Section 6.6.3).
EXAMPLE:
A1 OUTPUT: Output Signal = 0-5 VDC representing 0-1000 ppm concentration values
A2 OUTPUT: Output Signal = 0 – 10 VDC representing 0-500 ppm concentration values.
Output A3 is only active if the CO2 or O2 sensor option is installed. In this case a signal representing the
currently measured CO2 or O2 concentration is output on this channel.
The output, labeled A4 is special. It can be set by the user (See Section 7.4.6) to output several of the test
functions accessible through the keys of the units sample display.

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6.6.3. REPORTING RANGE MODES
The M300E/EM provides three analog output range modes to choose from.
 Single range (SNGL) mode sets a single maximum range for the analog output. If single range is selected
both outputs are slaved together and will represent the same measurement span (e.g. 0-50 ppm),
however their electronic signal levels may be configured for different ranges (e.g. 0-10 VDC vs. 0-.1
VDC).
 Dual range (DUAL) allows the A1 and A2 outputs to be configured with different measurement spans as
well as separate electronic signal levels.
 Auto range (AUTO) mode gives the analyzer to ability to output data via a low range and high range.
When this mode is selected the analyzer will automatically switch between the two ranges dynamically as
the concentration value fluctuates.
Range status is also output via the external digital I/O status outputs (See Section 3.3.3).
To select the Analog Output Range Type press:

NOTE
Upper span limit setting for the individual range modes are shared. Resetting the span limit in one mode
also resets the span limit for the corresponding range in the other modes as follows:
SNGL
Range

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DUAL
Range1
Range2




AUTO
Low Range
High Range

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6.6.3.1. RNGE  MODE  SNGL: Configuring the M300E/EM Analyzer for SINGLE Range Mode
NOTE
This is the default reporting range mode for the analyzer.
When the single range mode is selected (SNGL), all analog CO concentration outputs (A1 and A2) are slaved
together and set to the same reporting range limits (e.g. 500.0 ppb). The span limit of this reporting range can be
set to any value within the physical range of the analyzer.
Although both outputs share the same concentration reporting range, the electronic signal ranges of the analog
outputs may still be configured for different values (e.g. 0-5 VDC, 0-10 VDC, etc; see Section 7.4.2)
To select SNGL range mode and to set the upper limit of the range, press:

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6.6.3.2. RNGE  MODE  DUAL: Configuring the M300E/EM Analyzer for DUAL Range Mode
Selecting the DUAL range mode allows the A1 and A2 outputs to be configured with different reporting ranges.
The analyzer software calls these two ranges low and high.
 The LOW range setting corresponds with the analog output labeled A1 on the rear panel of the instrument.
 The HIGH range setting corresponds with the A2 output.
While the software names these two ranges low and high, they do not have to be configured that way. For
example: The low range can be set for a span of 0-1000 ppm while the high range is set for 0-500 ppm.
In DUAL range mode the RANGE test function displayed on the front panel will be replaced by two separate
functions:
 RANGE1: The range setting for the A1 output.
 RANGE2: The range setting for the A2 output.
To select the DUAL range mode press following keystroke sequence

.
When the instrument’s range mode is set to Dual the concentration field in the upper right hand corner of the
display alternates between displaying the low range value and the high range value. The concentration currently
being displayed is identified as follows: C1= LOW (or A1) and C2 = HIGH (or A2).

NOTE
In DUAL range mode the LOW and HIGH ranges have separate slopes and offsets for computing CO
concentrations.
The two ranges must be independently calibrated.

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To set the upper range limit for each independent reporting range, press:
.

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6.6.3.3. RNGE  MODE  AUTO: Configuring the M300E/EM Analyzer for AUTO Range Mode
In AUTO range mode, the analyzer automatically switches the reporting range between two user-defined ranges
(low and high).
 The unit will switch from low range to high range when the CO2 concentration exceeds 98% of the low
range span.
 The unit will return from high range back to low range once both the CO2 concentration falls below 75% of
the low range span.
In AUTO Range Mode the instrument reports the same data in the same range on both the A1 and A2 outputs
and automatically switches both outputs between ranges as described above.
Also the RANGE test function displayed on the front panel will be replaced by two separate functions:
RANGE1: The LOW range setting for all analog outputs.
RANGE2: The HIGH range setting for all analog outputs.
The high/low range status is also reported through the external, digital status bits (See Section 3.3.3).
To set individual ranges press the following keystroke sequence.

SETUP X.X
Avoid accidentally setting the
range (
) of the instrument
with a higher span limit than the
range (
).
This will cause the unit to stay in
the low reporting range perpetually
and defeat the function of the
range mode.

CFG DAS

CLK MORE

EXIT

SETUP X.X
SET

UNIT

DIL

EXIT

DIL

ENTR EXIT

SETUP X.X
SNGL DUAL

SETUP X.X

The
and
ranges have separate
slopes and offsets for
computing the CO
concentration.
The two ranges must
be independently
calibrated.

SNGL DUAL AUTO

SETUP X.X
MODE

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DIL

EXIT

SETUP X.X

Toggle these keys to
select the upper
limit for the
reporting range.

EXIT

discards the new
setting.
accepts the
new setting.

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6.6.4. SETUP  RNGE  UNIT: SETTING THE REPORTING RANGE UNITS
OF MEASURE
The M300E/EM can display concentrations in parts per million (106 mols per mol, PPM) or milligrams per cubic
meter (mg/m3, MG). Changing units affects all of the display, COMM port and iDAS values for all reporting
ranges regardless of the analyzer’s range mode. To change the concentration units:

NOTE
In order to avoid a reference temperature bias, the analyzer must be recalibrated after every change in
reporting units.
NOTE
3

Concentrations displayed in mg/m and ug/m use 0C@ 760 mmHg for Standard Temperature and
Pressure (STP).
Consult your local regulations for the STP used by your agency.
(Example: US EPA uses 25C as the reference temperature).
Once the Units of Measurement have been changed from volumetric (ppb or ppm) to mass units (µg/m3
or mg/m3) the analyzer MUST be recalibrated, as the “expected span values” previously in effect will no
longer be valid.
Simply entering new expected span values without running the entire calibration routine IS NOT
sufficient.
This will also counteract any discrepancies between STP definitions.

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6.6.5. SETUP RNGE  DIL: USING THE OPTIONAL DILUTION RATIO
FEATURE
This feature is a optional software utility that allows the user to compensate for any dilution of the sample gas
that may occur before it enters the sample inlet. Typically this occurs in continuous emission monitoring (CEM)
applications where the sampling method used to remove the gas from the stack dilutes it.
Using the dilution ratio option is a 4-step process:
1. Select the appropriate units of measure (see Section 6.6.4).
2. Select the reporting range mode and set the reporting range upper limit (see Section 6.6.3). Make sure
that:
 The upper span limit entered for the reporting range is the maximum expected concentration of the
UNDILUTED gas.
3. Set the dilution factor as a gain (e.g., a value of 20 means 20 parts diluent and 1 part of sample gas):

4. Calibrate the analyzer.
 Make sure that the calibration span gas is either supplied through the same dilution system as the
sample gas or has an appropriately lower actual concentration.
EXAMPLE: If the reporting range limit is set for 100 ppm and the dilution ratio of the sample gas is 20
gain, either:
a span gas with the concentration of 100 ppm can be used if the span gas passes through the same
dilution steps as the sample gas, or;
a 5 ppm span gas must be used if the span gas IS NOT routed through the dilution system.

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7. ADVANCED FEATURES
7.1. SETUP  IDAS: USING THE DATA ACQUISITION SYSTEM
(IDAS)
The M300E/EM Analyzer contains a flexible and powerful, Internal Data Acquisition System (iDAS) that enables
the analyzer to store concentration and calibration data as well as a host of diagnostic parameters. The iDAS of
the M300E/EM can store up to about one million data points, which can, depending on individual configurations,
cover days, weeks or months of valuable measurements. The data is stored in non-volatile memory and is
retained even when the instrument is powered off. Data is stored in plain text format for easy retrieval and use in
common data analysis programs (such as spreadsheet-type programs).
The iDAS is designed to be flexible, users have full control over the type, length and reporting time of the data.
The iDAS permits users to access stored data through the instrument’s front panel or its communication ports.
The principal use of the iDAS is logging data for trend analysis and predictive diagnostics, which can assist in
identifying possible problems before they affect the functionality of the analyzer. The secondary use is for data
analysis, documentation and archival in electronic format.
To support the iDAS functionality, Teledyne API offers APICOM, a program that provides a visual interface for
remote or local setup, configuration and data retrieval of the iDAS. The APICOM manual, which is included with
the program, contains a more detailed description of the iDAS structure and configuration, which is briefly
described in this manual.
The M300E/EM is configured with a basic iDAS configuration, which is enabled by default. New data channels
are also enabled by default at their creation, but all channels may be turned off for later or occasional use.
Note
iDAS operation is suspended whenever its configuration is edited using the analyzer’s front panel and
therefore data may be lost. To prevent such data loss, it is recommended to use the APICOM graphical
user interface for iDAS changes.
Please be aware that all stored data will be erased if the analyzer’s Disk-on-Module or CPU board is
replaced or if the configuration data stored there is reset.
Since all changes to the configuration of the iDAS cause all of the existing data to be erased, it is
recommended to download your stored data prior to making any changes.

7.1.1. IDAS STATUS
The green SAMPLE LED on the instrument front panel, which indicates the analyzer status, also indicates
certain aspects of the iDAS status:
Table 7-1:
LED STATE

Off
Blinking
On

Front Panel LED Status Indicators for iDAS
IDAS STATUS

System is in calibration mode. Data logging can be enabled or disabled for this mode.
Calibration data are typically stored at the end of calibration periods, concentration data are
typically not sampled, diagnostic data should be collected.
Instrument is in hold-off mode, a short period after the system exits calibrations. iDAS
channels can be enabled or disabled for this period. Concentration data are typically disabled
whereas diagnostic should be collected.
Sampling normally.

The iDAS can be disabled, as opposed to suspended, only by disabling or deleting its individual data channels.

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7.1.2. IDAS STRUCTURE
The iDAS is designed around the feature of a “record”. A record is a single data point. The type of data
recorded in a record is defined by two properties:
PARAMETER type that defines the kind of data to be stored (e.g. the average of gas concentrations
measured with three digits of precision). See Section 7.1.5.3.
A TRIGGER event that defines when the record is made (e.g. timer; every time a calibration is performed,
etc.). See Section 7.1.5.2.
The specific PARAMETERS and TRIGGER events that describe an individual record are defined in a construct
called a DATA CHANNEL (see Section 7.1.3). Each data channel is related one or more parameters with a
specific trigger event and various other operational characteristics related to the records being made (e.g. the
channels name, number or records to be made, time period between records, whether or not the record is
exported via the analyzer’s RS-232 port, etc.).

7.1.2.1. iDAS Channels
The key to the flexibility of the iDAS is its ability to store a large number of combinations of triggering events and
data parameters in the form of data channels. Users may create up to 50 data channels and each channel can
contain one or more parameters. For each channel, the following are selected:
 One triggering event is selected.
 Up to 50 data parameters, which can be the shared between channels.
 Several other properties that define the structure of the channel and allow the user to make operational
decisions regarding the channel.
Table 7-2:
PROPERTY

DEFAULT
SETTING

SETTING RANGE

Up to 6 letters or digits 1.
Any available event
(see Appendix A-5).

“NONE”

TRIGGERING
EVENT

The event that triggers the data channel to measure
and store the datum.

ATIMER

NUMBER AND
LIST OF
PARAMETERS

A User-configurable list of data types to be
recorded in any given channel.

1
(COMEAS)

Any available parameter
(see Appendix A-5).

The amount of time between each channel data
point.

000:01:00
(1 hour)

000:00:01 to
366:23:59
(Days:Hours:Minutes)

100

1 to 1 million, limited by
available storage space.

OFF

OFF or ON

OFF

OFF or ON

REPORT PERIOD
NUMBER OF
RECORDS
RS-232 REPORT
CHANNEL
ENABLED
CAL HOLD OFF
2

DESCRIPTION
The name of the data channel.

NAME

iDAS Data Channel Properties

The number of reports that will be stored in the data
file. Once the limit is exceeded, the oldest data is
over-written.
Enables the analyzer to automatically report
channel values to the RS-232 ports.
Enables or disables the channel. Allows a channel
to be temporarily turned off without deleting it.
Disables sampling of data parameters while
2
instrument is in calibration mode .

More with APICOM, but only the first six are displayed on the front panel.
When enabled records are not recorded until the DAS HOLD OFF period is passed after calibration mode. DAS HOLD OFF SET in
the VARS menu (see Section Error! Reference source not found.).

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7.1.3. DEFAULT IDAS CHANNELS
A set of default Data Channels has been included in the analyzer’s software for logging CO concentration and
certain predictive diagnostic data. These default channels include but are not limited to:
 CONC: Samples CO concentration at one minute intervals and stores an average every hour with a time
and date stamp. Readings during calibration and calibration hold off are not included in the data.
 By default, the last 800 hourly averages are stored.
 PNUMTC: Collects sample flow and sample pressure data at five-minute intervals and stores an average
once a day with a time and date stamp. This data is useful for monitoring the condition of the pump and
critical flow orifice (sample flow) and the sample filter (clogging indicated by a drop in sample pressure)
over time to predict when maintenance will be required.
 The last 360 daily averages (about 1 year) are stored.
 CALDAT: Logs new slope and offset of CO measurements every time a zero or span calibration is
performed and the result changes the value of the slope (triggering event: SLPCHG). The CO stability
data to evaluate if the calibration value was stable are also stored.
 This data channel will store data from the last 200 calibrations and can be used to document analyzer
calibration and is useful in the detection of the in slope and offset (instrument response) when
performing predictive diagnostics as part of a regular maintenance schedule.
 The CALDAT channel collects data based on events (e.g. a calibration operation) rather than a timed
interval and therefore does not represent any specific length of time. As with all data channels, a
date and time stamp is recorded for every logged data point.
These default Data Channels can be used as they are, or they can be customized from the front panel to fit a
specific application. They can also be deleted to make room for custom user-programmed Data Channels.
Appendix A-5 lists the firmware-specific iDAS configuration in plain-text format. This text file can either be
loaded into APICOM and then modified and uploaded to the instrument or can be copied and pasted into a
terminal program to be sent to the analyzer.
NOTE
Sending an iDAS configuration to the analyzer through its COMM ports will replace the existing
configuration and will delete all stored data. Back up any existing data and the iDAS configuration
before uploading new settings.

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Triggering Events and Data Parameters/Functions for these default channels are:

Figure 7-1:
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Default iDAS Channel Setup
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7.1.4. SETUP DAS VIEW: VIEWING IDAS CHANNELS AND INDIVIDUAL
RECORDS
iDAS data and settings can be viewed on the front panel through the following keystroke sequence.

Moves the VIEW backward 10 record
SETUP X.X
CFG

RNGE PASS CLK MORE

Moves the VIEW backward 1 records or channel

EXIT

Moves the VIEW forward 1 record or channel
Moves the VIEW forward 10 records

SETUP X.X

Selects the previous parameter on the list

EDIT

EXIT

Selects the next parameter on the list

SETUP X.X
EXIT

SETUP X.X
PREV

EXIT
SETUP X.X

EXIT

SETUP X.X
PREV

SETUP X.X

EXIT

PV10 PREV

EXIT

SETUP X.X
EXIT

SETUP X.X
PV10 PREV NX10 NEXT

SETUP X.X
EXIT

PV10 PREV

EXIT

Continue pressing
to view remaining
iDAS channels

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7.1.5. SETUP DAS EDIT: ACCESSING THE IDAS EDIT MODE
iDAS configuration is most conveniently done through the APICOM remote control program. The following list of
key strokes shows how to edit the iDAS using the front panel.

When editing the data channels, the top line of the display indicates some of the configuration parameters.
For example, the display line:
0) CONC: ATIMER, 1, 800
Translates to the following configuration:
Channel No.: 0
NAME: CONC
TRIGGER EVENT: ATIMER
PARAMETERS: One parameter is included in this channel
EVENT: This channel is set up to store 800 records.
To edit the name of a data channel, follow the above key sequence and refer to Section 7.1.5.1:

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7.1.5.1. Editing iDAS Data Channel Names
To edit the name of an iDAS data channel, follow the instruction shown in Section 7.1.5.1, then press:

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7.1.5.2. Editing iDAS Triggering Events
Triggering events define when and how the iDAS records a measurement of any given data channel. The most
commonly used triggering events are:
ATIMER: Sampling at regular intervals specified by an automatic timer. Most trending information is usually
stored at such regular intervals, which can be instantaneous or averaged.
EXITZR, EXITSP, and SLPCHG (exit zero, exit span, slope change): Sampling at the end of (irregularly
occurring) calibrations or when the response slope changes. These triggering events create
instantaneous data points, e.g., for the new slope and offset (concentration response) values at the end
of a calibration. Zero and slope values are valuable to monitor response drift and to document when the
instrument was calibrated.
WARNINGS: Some data may be useful when stored if one of several warning messages appears such as
WTEMPW (GFC Wheel temperature warning). This is helpful for troubleshooting by monitoring when a
particular warning occurrs.
To edit the list of data parameters associated with a specific data channel, follow the instruction shown in Section
7.1.5 then press:

NOTE

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Triggering events are firmware-specific and a complete list of Triggers for this model analyzer can be
found in Appendix A-5.

7.1.5.3. Editing iDAS Parameters
Data parameters are types of data that may be measured and stored by the iDAS. For each analyzer model, the
list of available data parameters is different, fully defined and not customizable. Appendix A-5 lists firmware
specific data parameters for the M300E/EM. iDAS parameters include things like CO concentration
measurements, temperatures of the various heaters placed around the analyzer, pressures and flows of the
pneumatic subsystem and other diagnostic measurements as well as calibration data such as stability, slope and
offset.
Most data parameters have associated measurement units, such as mV, ppb, cm³/min, etc., although some
parameters have no units (e.g. SLOPE). With the exception of concentration readings, none of these units of
measure can be changed. To change the units of measure for concentration readings, see Section 6.6.4.
Note
iDAS does not keep track of the units (i.e. PPM or PPB) of each concentration value therefore iDAS data
files may contain concentrations data recorded in more than one the type of unit if the units of measure
was changed during data acquisition.
Each data parameter has user-configurable functions that define how the data are recorded.
Table 7-3:

iDAS Data Parameter Functions

FUNCTION
PARAMETER
SAMPLE MODE

EFFECT
Instrument-specific parameter name.
INST: Records instantaneous reading.
AVG: Records average reading during reporting interval.
SDEV: Records the standard deviation of the data points recorded during the reporting interval.
MIN: Records minimum (instantaneous) reading during reporting interval.
MAX: Records maximum (instantaneous) reading during reporting interval.

PRECISION

0 to 4: Sets the number of digits to the right decimal point for each record.
Example: Setting 4; “399.9865 PPB”
Setting 0; “400 PPB”

STORE NUM
SAMPLES

OFF: Stores only the average (default).
ON: Stores the average and the number of samples in used to compute the value of the
parameter. This property is only useful when the AVG sample mode is used. Note that the
number of samples is the same for all parameters in one channel and needs to be specified only
for one of the parameters in that channel.

Users can specify up to 50 parameters per data channel (the M300E/EM provides about 40 parameters).
However, the number of parameters and channels is ultimately limited by available memory.
Data channels can be edited individually from the front panel without affecting other data channels. However,
when editing a data channel, such as during adding, deleting or editing parameters, all data for that particular
channel will be lost, because the iDAS can store only data of one format (number of parameter columns, etc.) for
any given channel. In addition, an iDAS configuration can only be uploaded remotely as an entire set of
channels. Hence, remote update of the iDAS will always delete all current channels and stored data.

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To modify, add or delete a parameter, follow the instruction shown in Section 7.1.5 then press:

NOTE
When the STORE NUM SAMPLES feature is turned on, the instrument will store how many
measurements were used to compute the AVG, SDEV, MIN or MAX
value but not the actual measurements themselves.

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7.1.5.4. Editing Sample Period and Report Period
The iDAS defines two principal time periods by which sample readings are taken and permanently recorded:
SAMPLE PERIOD: Determines how often iDAS temporarily records a sample reading of the parameter in
volatile memory. SAMPLE PERIOD is only used when the iDAS parameter’s sample mode is set for
AVG, SDEV, MIN or MAX.
The SAMPLE PERIOD is set to one minute by default and generally cannot be accessed from the
standard iDAS front panel menu, but is available via the instruments communication ports by using
APICOM or the analyzer’s standard serial data protocol.
REPORT PERIOD: Sets how often the sample readings stored in volatile memory are processed, (e.g.
average, minimum or maximum are calculated) and the results stored permanently in the instruments
Disk-on-Chip as well as transmitted via the analyzer’s communication ports. The Report Period may be
set from the front panel. If the INST sample mode is selected the instrument stores and reports an
instantaneous reading of the selected parameter at the end of the chosen report period.
To define the REPORT PERIOD, follow the instruction shown in Section 7.1.5 then press:

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The SAMPLE PERIOD and REPORT PERIOD intervals are synchronized to the beginning and end of the
appropriate interval of the instruments internal clock.
If SAMPLE PERIOD were set for one minute the first reading would occur at the beginning of the next full
minute according to the instrument’s internal clock.
If the REPORT PERIOD were set for of one hour, the first report activity would occur at the beginning of the
next full hour according to the instrument’s internal clock.
EXAMPLE:
Given the above settings, if the iDAS were activated at 7:57:35 the first sample would occur at 7:58 and
the first report would be calculated at 8:00 consisting of data points for 7:58, 7:59 and 8:00.
During the next hour (from 8:01 to 9:00), the instrument will take a sample reading every minute and
include 60 sample readings.

NOTE
In AVG, SDEV, MIN or MAX sample modes (see Section 7.1.5.3), the settings for the Sample Period and
the Report Period determine the number of data points used each time the parameter is calculated,
stored and reported to the COMM ports.
The actual sample readings are not stored past the end of the chosen report period.
When the STORE NUM SAMPLES feature is turned on, the instrument will store how many
measurements were used to compute the AVG, SDEV, MIN or MAX Value, but not the actual
measurements themselves.

7.1.5.5. Report Periods in Progress When Instrument Is Powered Off
If the instrument is powered off in the middle of a REPORT PERIOD, the samples accumulated so far during that
period are lost. Once the instrument is turned back on, the iDAS restarts taking samples and temporarily stores
them in volatile memory as part of the REPORT PERIOD currently active at the time of restart. At the end of this
REPORT PERIOD PERIOD, only the sample readings taken since the instrument was turned back on will be
included in any AVG, SDEV, MIN or MAX calculation.
Also, the STORE NUM SAMPLES feature will report the number of sample readings taken since the instrument
was restarted.

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7.1.5.6. Editing the Number of Records
The number of data records in the iDAS is limited to about a cumulative one million data points in all channels
(one megabyte of space on the Disk-on-Chip). However, the actual number of records is also limited by the total
number of parameters and channels and other settings in the iDAS configuration. Every additional data channel,
parameter, number of samples setting, etc., will reduce the maximum amount of data points. In general,
however, the maximum data capacity is divided amongst all channels (max: 20) and parameters (max: 50 per
channel).
The iDAS will check the amount of available data space and prevent the user from specifying too many records
at any given point. If, for example, the iDAS memory space can accommodate 375 more data records, the
ENTR key will disappear when trying to specify more than that number of records. This check for memory space
may also cause the upload of an iDAS configuration with APICOM or a terminal program to fail, if the combined
number of records would be exceeded. In this case, it is suggested to either try to determine what the maximum
number of records available is using the front panel interface or use trial-and-error in designing the iDAS script or
calculate the number of records using the DAS or APICOM manuals.
To set the NUMBER OF RECORDS, follow the instruction shown in Section 7.1.5 then press:
.

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7.1.5.7. RS-232 Report Function
The iDAS can automatically report data to the communications ports, where they can be captured with a terminal
emulation program or simply viewed by the user using the APICOM software.
To enable automatic COMM port reporting, follow the instruction shown in Section 7.1.5 then press:

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7.1.5.8. Enabling/Disabling the HOLDOFF Feature
The iDAS HOLDOFF feature prevents data collection during calibration operations and at certain times when
the quality of the analyzer’s CO measurements may not be certain (e.g. while the instrument is warming up). In
this case, the length of time that the HOLDOFF feature is active is determined by the value of the internal
variable (VARS), DAS_HOLDOFF.
To set the length of the DAS_HOLDOFF period, see Section Error! Reference source not found..
To enable or disable the HOLDOFF, follow the instruction shown in Section 7.1.5 then press:

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7.1.5.9. The Compact Report Feature
When enabled, this option avoids unnecessary line breaks on all RS-232 reports. Instead of reporting each
parameter in one channel on a separate line, up to five parameters are reported in one line.
The COMPACT DATA REPORT generally cannot be accessed from the standard iDAS front panel menu, but is
available via the instruments communication ports by using APICOM or the analyzer’s standard serial data
protocol.

7.1.5.10. The Starting Date Feature
This option allows the user to specify a starting date for any given channel in case the user wants to start data
acquisition only after a certain time and date. If the STARTING DATE is in the past (the default condition), the
iDAS ignores this setting and begins recording data as defined by the REPORT PERIOD setting.
The STARTING DATE generally cannot be accessed from the standard iDAS front panel menu, but is available
via the instruments communication ports by using APICOM or the analyzer’s standard serial data protocol.

7.1.6. DISABLING/ENABLING DATA CHANNELS
Data channels can be temporarily disabled, which can reduce the read/write wear on the Disk-on-Chip.
To disable a data channel, follow the instruction shown in Section 7.1.5 then press:

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7.1.7. REMOTE IDAS CONFIGURATION
7.1.7.1. iDAS Configuration Using APICOM
Editing channels, parameters and triggering events as described in this can be performed via the APICOM
remote control program using the graphic interface shown below. Refer to Section 8 for details on remote
access to the M300E/EM Analyzer.

Figure 7-2:

APICOM User Interface for Configuring the iDAS

Once an iDAS configuration is edited (which can be done offline and without interrupting DAS data collection), it
is conveniently uploaded to the instrument and can be stored on a computer for later review, alteration or
documentation and archival. Refer to the APICOM manual for details on these procedures. The APICOM user
manual (Teledyne API’s P/N 039450000) is included in the APICOM installation file, which can be downloaded at
http://www.teledyne-api.com/manuals/.

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7.1.7.2. iDAS Configuration Using Terminal Emulation Programs
Although Teledyne API recommends the use of APICOM, the iDAS can also be accessed and configured
through a terminal emulation program such as HyperTerminal (see example in Figure 7-3).
To do this:


All configuration commands must be created and edited off line (e.g. cut & pasted in from a text file or
word processor) following a strict syntax (see below for example).



The script is then uploaded via the instruments RS-232 port(s).

Figure 7-3:

iDAS Configuration Through a Terminal Emulation Program

Both of the above steps are best started by:
1. Downloading the default iDAS configuration.
2. Getting familiar with its command structure and syntax conventions.
3. Altering a copy of the original file offline.
4. Uploading the new configuration into the analyzer.
NOTE
The editing, adding and deleting of iDAS channels and parameters of one channel through the frontpanel keyboard can be done without affecting the other channels.
On the other hand, uploading an iDAS configuration script to the analyzer through its communication
ports will ERASE ALL DATA, PARAMETERS AND CHANNELS and replace them with the new iDAS
configuration.
It is recommended that you download and backup all data and the original iDAS configuration before
attempting any iDAS changes.
Refer to the next section, 8. Remote Operation, for details on remote access to and from the M300E/EM
Analyzer via the instrument’s COMM ports.
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7.2. SETUP  MORE  VARS: INTERNAL VARIABLES (VARS)
The M300E/EM has several user-adjustable software variables, which define certain operational parameters.
Usually, these variables are automatically set by the instrument’s firmware, but can be manually redefined using
the VARS menu.
The following table lists all variables that are available within the 818 password protected level. See Appendix
A-2 for a detailed listing of all of the M300E/EM variables that are accessible through the remote interface.
Table 7-4:
NO.

1
2

VARIABLE

DAS_HOLD_OFF

CONC_PRECISION

Variable Names (VARS)
DESCRIPTION

Changes the Internal Data Acquisition System (iDAS)
HOLDOFF timer.
No data is stored in the iDAS channels during situations
when the software considers the data to be questionable
such as during warm-up or just after the instrument returns
from one of its calibration modes to SAMPLE Mode.

ALLOWED
VALUES
May be set for
intervals
between
0.5 – 20 min

VARS
DEFAULT
VALUES

15 min.

Allows the user to set the number of significant digits to the
right of the decimal point display of concentration and stability
values.

AUTO, 1, 2,
3, 4

AUTO

DYN_ZERO 1

Dynamic zero automatically adjusts offset and slope of the
CO response when performing a zero point calibration during
an AutoCal (see Section 9.4).

ON/OFF

OFF

DYN_SPAN 1

Dynamic span automatically adjusts the offsets and slopes of
the CO response when performing a slope calibration during
an AutoCal (see Section 9.4).

ON/OFF

OFF

-60 to +60
s/day

0 sec

CLOCK_ADJ

STABIL_GAS2

Adjusts the speed of the analyzer’s clock. Choose the +
sign if the clock is too slow, choose the - sign if the clock is
too fast.

Selects which gas measurement is displayed when the STABIL
CO; CO2 & O2
test function is selected.

Use of the DYN_ZERO and DYN_SPAN features are not allowed for applications requiring EPA equivalency.

This VARS only appears if either the optional O2 or CO2 sensors are installed.

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To access and navigate the VARS menu, use the following key sequence.

Concentration display
continuously cycles
through all gasses.

SETUP X.X
CFG DAS RNGE PASS CLK

EXIT

SETUP X.X
COMM

DIAG

In all cases:
discards the new
setting.

EXIT

accepts the
new setting.

SETUP X.X
EXIT
Toggle these
keys to enter the
correct

SETUP X.X
PREV

JUMP

PRNT EXIT
SETUP X.X
Toggle these keys to set
the iDAS HOLDOFF time
period in minutes
(MAX = 20 minutes).

SETUP X.X
PREV

JUMP

PRNT EXIT
SETUP X.X

Use these Keys to select
the precision of the o33
concentration display.

SETUP X.X
PREV

JUMP

PRNT EXIT
SETUP X.X

Toggle this key to turn the
Dynamic Zero calibration
feature

SETUP X.X
PREV

JUMP

PRNT EXIT
SETUP X.X

Toggle this key to turn the
Dynamic Span calibration
feature
PREV

JUMP

EDIT ENTR EXIT
ENTR EXIT
Enter sign and number of
seconds per day the clock
gains (-) or loses(+).

SETUP X.X
PREV

JUMP

PRNT EXIT
SETUP X.X

Press
for additional
VARS; press
or
to move back and
forth throughout the list of
VARS.

126

Use these keys to select
which gas will be reported
by the sTABIL test
function.
(O2 is only available if the
optional O2 sensor is
installed)

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7.3. SETUP  MORE  DIAG: USING THE DIAGNOSTICS
FUNCTIONS
A series of diagnostic tools is grouped together under the SETUPMOREDIAG menu, as these parameters
are dependent on firmware revision (see Appendix A). These tools can be used in a variety of troubleshooting
and diagnostic procedures and are referred to in many places of the maintenance and trouble-shooting sections
of this manual.
The various operating modes available under the DIAG menu are:
Table 7-5:

Diagnostic Mode (DIAG) Functions

DIAG SUBMENU

SUBMENU FUNCTION

Front Panel Mode
Indicator

MANUAL
SECTION

SIGNAL I/O

Allows observation of all digital and analog signals in
the instrument. Allows certain digital signals such as
valves and heaters to be toggled ON and OFF.

DIAG I/O

13.1.3

ANALOG OUTPUT

When entered, the analyzer performs an analog
output step test. This can be used to calibrate a
chart recorder or to test the analog output accuracy.

DIAG AOUT

13.5.7.1

ANALOG I/O
CONFIGURATION

This submenu allows the user to configure the
analyzer’s analog output channels, including
choosing what parameter will be output on each
channel. Instructions that appear here allow
adjustment and calibration of the voltage signals
associated with each output as well as calibration of
the analog to digital converter circuitry on the
motherboard.

DIAG AIO

7.4.1

ELECTRICAL
TEST

When activated, the analyzer performs an electrical
test, which generates a voltage intended to simulate
the measure and reference outputs of the
SYNC/DEMOD board to verify the signal handling
and conditioning of these signals.

DIAG ELEC

9.6.4
13.5.6.2

DARK
CALIBRATION1

Disconnects the preamp from synchronous
demodulation circuitry on the SYNC/DEMOD PCA to
establish the dark offset values for the measure and
reference channel.

DIAG DARK
CAL

9.6.1

PRESSURE
CALIBRATION1

Allows the user to calibrate the sample pressure
sensor.

DIAG PCAL

9.6.2

FLOW
CALIBRATION1

This function is used to calibrate the gas flow output
signals of sample gas and ozone supply.

DIAG FCAL

9.6.3

TEST CHAN
OUTPUT

Selects one of the available test channel signals to
output over the A4 analog output channel.

DIAG TCHN

7.4.6

These settings are retained after exiting DIAG mode.

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7.3.1. ACCESSING THE DIAGNOSTIC FEATURES
To access the DIAG functions press the following keys:

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7.4. USING THE M300E/EM ANALYZER’S ANALOG OUTPUTS.
The M300E/EM Analyzer comes equipped with four analog outputs.
 The first two outputs (A1 & A2) carry analog signals that represent the currently measured concentration
of CO (see Section 6.6.2).
 The third output (A3) is only active if the analyzer is equipped with one of the optional 2nd gas sensors (e.g.
O2 or CO2).
 The fourth output (A4) outputs a signal that can be set to represent the current value of one of several test
functions (see Table 7-10).

7.4.1. ACCESSING THE ANALOG OUTPUT SIGNAL CONFIGURATION
SUBMENU
The following lists the analog I/O functions that are available in the M300E/EM Analyzer.
Table 7-6:
SUB MENU

AOUT
CALIBRATED

CONC_OUT_1

OUTPUT
CHANNEL

DIAG - Analog I/O Functions
FUNCTION

ALL

Initiates a calibration of the A1, A2, A3 and A4 analog output
channels that determines the slope and offset inherent in the
circuitry of each output.
These values are stored and applied to the output signals by
the CPU automatically.

Sets the basic electronic configuration of the A1 output (CO
Concentration).
There are four options:
 RANGE1: Selects the signal type (voltage or current loop)
and level of the output.
 REC OFS: Allows them input of a DC offset to let the user
manually adjust the output level.
 AUTO CAL: Enables / Disables the AOUT CALIBRATED
feature.
 CALIBRATED: Performs the same calibration as AOUT
CALIBRATED, but on this one channel only.

CONC_OUT_2

 Same as for CONC_OUT_1 but for analog channel A2.

CONC_OUT_3

 Same as for CONC_OUT_1 but for analog channel A3 but
only if either the optional O2 or CO2 sensors are installed.

TEST OUTPUT

 Same as for CONC_OUT_1 but for analog channel A4
(TEST CHANNEL).

AIN
CALIBRATED

N/A

Initiates a calibration of the A-to-D Converter circuit located on
the Motherboard.

MANUAL
SECTION

7.4.3

7.4

7.4.6
7.4.7

Any changes made to RANGE or REC_OFS require recalibration of this output.

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To access the ANALOG I/O CONFIGURATION sub menu, press:

Figure 7-4:

130

Accessing the Analog I/O Configuration Submenus

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7.4.2. ANALOG OUTPUT VOLTAGE / CURRENT RANGE SELECTION
In its standard configuration, each of the analog outputs is set to output a 0–5 VDC signals. Several other output
ranges are available. Each range has is usable from -5% to + 5% of the rated span.
Table 7-7:

Analog Output Voltage Range Min/Max

RANGE NAME

RANGE SPAN

MINIMUM OUTPUT

MAXIMUM OUTPUT

0.1V

0-100 mVDC

-5 mVDC

105 mVDC

0-1 VDC

-0.05 VDC

1.05 VDC

0-5 VDC

-0.25 VDC

5.25 VDC

10V

0-10 VDC

-0.5 VDC

10.5 VDC

0 mA

20 mA

 The default offset for all VDC ranges is 0-5 VDC.
CURR

0-20 mA

 While these are the physical limits of the current loop modules, typical applications use 2-20 or 4-20 mA for the lower and
upper limits. Please specify desired range when ordering this option.

 The default offset for all current ranges is 0 mA.
 Current outputs are available only on A1-A3.

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To change the output type and range, select the ANALOG I/O CONFIGURATION submenu (see Figure 7-4)
then press:

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7.4.3. CALIBRATION OF THE ANALOG OUTPUTS
Analog output calibration should to be carried out on first startup of the analyzer (performed in the factory as part
of the configuration process) or whenever recalibration is required. The analog outputs can be calibrated
automatically or adjusted manually.
During automatic calibration, the analyzer tells the output circuitry to generate a zero mV signal and high-scale
point signal (usually about 90% of chosen analog signal scale) then measures actual signal of the output. Any
error at zero or high-scale is corrected with a slope and offset.
Automatic calibration can be performed via the CAL button located inside The AOUTS CALIBRATION
submenu. By default, the analyzer is configured so that calibration of analog outputs can be initiated as a group
with the AOUT CALIBRATION command. The outputs can also be calibrated individually, but this requires the
AUTOCAL feature be disabled.

7.4.3.1. Enabling or Disabling the AutoCal for an Individual Analog Output
To enable or disable the AutoCal feature for an individual analog output, elect the ANALOG I/O
CONFIGURATION submenu (see Figure 7-4) then press:

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7.4.3.2. Automatic Calibration of the Analog Outputs
To calibrate the outputs as a group with the AOUTS CALIBRATION command, select the ANALOG I/O
CONFIGURATION submenu (see Figure 7-4) then press:
NOTE
Before performing this procedure, make sure that the AUTO CAL for each analog output is enabled.
(See Section 7.4.3.1)

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NOTE:
Manual calibration should be used for any analog output set for a 0.1V output range or in cases where
the outputs must be closely matched to the characteristics of the recording device.

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7.4.3.3. Individual Calibration of the Analog Outputs
To use the AUTO CAL feature to initiate an automatic calibration for an individual analog output, select the
ANALOG I/O CONFIGURATION submenu (see Figure 7-4) then press:

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7.4.3.4. Manual Calibration of the Analog Outputs Configured for Voltage Ranges
For highest accuracy, the voltages of the analog outputs can be manually calibrated.
NOTE:
The menu for manually adjusting the analog output signal level will only appear if the AUTO-CAL feature
is turned off for the channel being adjusted (see Section 7.4.3.1).
Calibration is performed with a voltmeter connected across the output terminals and by changing the actual
output signal level using the front panel keys in 100, 10 or 1 count increments. See Figure 3-7 for pin
assignments and diagram of the analog output connector.

+DC

Figure 7-5:

Gnd

Setup for Checking / Calibrating DCV Analog Output Signal Levels

Table 7-8:

Voltage Tolerances for the TEST CHANNEL Calibration

FULL
SCALE

ZERO
TOLERANCE

SPAN VOLTAGE

SPAN
TOLERANCE

MINIMUM
ADJUSTMENT
(1 count)

0.1 VDC

±0.0005V

90 mV

±0.001V

0.02 mV

1 VDC

±0.001V

900 mV

±0.001V

0.24 mV

5 VDC

±0.002V

4500 mV

±0.003V

1.22 mV

10 VDC

±0.004V

4500 mV

±0.006V

2.44 mV

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To adjust the signal levels of an analog output channel manually, select the ANALOG I/O CONFIGURATION
submenu (see Figure 7-4) then press:

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7.4.3.5. Manual Adjustment of Current Loop Output Span and Offset
A current loop option may be purchased for the A1, A2 and A3 analog outputs of the analyzer. This option
places circuitry in series with the output of the D-to-A converter on the motherboard that changes the normal DC
voltage output to a 0-20 milliamp signal (see Section 5.4).
 The outputs can be ordered scaled to any set of limits within that 0-20 mA range, however most current
loop applications call for either 0-20 mA or 4-20 mA range spans.
 All current loop outputs have a +5% over range. Ranges whose lower limit is set above 1 mA also have a
–5% under range.
To switch an analog output from voltage to current loop, follow the instructions in Section 7.4.2 (select CURR
from the list of options on the “Output Range” menu).
Adjusting the signal zero and span levels of the current loop output is done by raising or lowering the voltage
output of the D-to-A converter circuitry on the analyzer’s motherboard. This raises or lowers the signal level
produced by the current loop option circuitry.
The software allows this adjustment to be made in 100, 10 or 1 count increments. Since the exact amount by
which the current signal is changed per D-to-A count varies from output-to-output and instrument-to-instrument,
you will need to measure the change in the signal levels with a separate, current meter placed in series with the
output circuit. See Figure 3-7 for pin assignments and diagram of the analog output connector.

Figure 7-6:

Setup for Checking / Calibration Current Output Signal Levels Using an Ammeter

CAUTION
GENERAL SAFETY HAZARD
Do not exceed 60 V peak voltage between current loop outputs and instrument
ground.
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To adjust the zero and span signal levels of the current outputs, select the ANALOG I/O CONFIGURATION
submenu (see Figure 7-4) then press:

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An alternative method for measuring the output of the Current Loop converter is to connect a 250 ohm 1%
resistor across the current loop output in lieu of the current meter (see Figure 3-7 for pin assignments and
diagram of the analog output connector). This allows the use of a voltmeter connected across the resistor to
measure converter output as VDC or mVDC.

+DC

Figure 7-7:

Gnd

Alternative Setup Using 250Ω Resistor for Checking Current Output Signal Levels

In this case, follow the procedure above but adjust the output for the following values:
Table 7-9:

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Current Loop Output Check

% FS

Voltage across
Resistor for 2-20 mA

Voltage across
Resistor for 4-20 mA

500 mVDC

1000 mVDC

100

5000 mVDC

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7.4.4. TURNING AN ANALOG OUTPUT OVER-RANGE FEATURE ON/OFF
In its default configuration, a ± 5% over-range is available on each of the M300E/EM Analyzer’s analog outputs.
This over-range can be disabled if your recording device is sensitive to excess voltage or current.
To turn the over-range feature on or off, select the ANALOG I/O CONFIGURATION submenu (see Figure 7-4)
then press:

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7.4.5. ADDING A RECORDER OFFSET TO AN ANALOG OUTPUT
Some analog signal recorders require that the zero signal is significantly different from the baseline of the
recorder in order to record slightly negative readings from noise around the zero point. This can be achieved in
the M300E/EM by defining a zero offset, a small voltage (e.g., 10% of span).
To add a zero offset to a specific analog output channel, select the ANALOG I/O CONFIGURATION submenu
(see Figure 7-4) then press:

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7.4.6. SELECTING A TEST CHANNEL FUNCTION FOR OUTPUT A4
The test functions available to be reported are listed in Table 7-10:
Table 7-10: Test Channels Functions available on the M300E/EM’s Analog Output
ZERO

FULL SCALE *

The demodulated, peak IR detector output
during the measure portion of the GFC Wheel
cycle.

0 mV

5000 mV

CO REFERENCE

The demodulated, peak IR detector output
during the reference portion of the GFC
Wheel cycle.

0 mV

5000 mV

SAMPLE PRESS

The absolute pressure of the Sample gas as
measured by a pressure sensor located inside
the sample chamber.

0" Hg

40 "Hg

SAMPLE FLOW

Sample mass flow rate as measured by the
flow rate sensor in the sample gas stream.

3
0 cm /m

1000 cm 3/m

SAMPLE TEMP

The temperature of the gas inside the sample
chamber.

0C

70C

Optical bench temperature.

0C

70C

WHEEL TEMP

GFC Wheel temperature.

0C

70C

O2 CELL TEMP

The current temperature of the O2 sensor
measurement cell.

70C

CHASSIS TEMP

The temperature inside the analyzer chassis.

0C

70C

0 mV

5000 mV

TEST CHANNEL
NONE
CO MEASURE

BENCH TEMP

PHT DRIVE

DESCRIPTION
TEST CHANNEL IS TURNED OFF.

The drive voltage being supplied to the
thermoelectric coolers of the IR photodetector by the Sync/Demod Board.

* Maximum test signal value at full scale of test channel output.
Once a function is selected, the instrument not only begins to output a signal on the analog output, but also adds
TEST to the list of test functions viewable via the front panel display.

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To activate the TEST Channel and select CO MEASURE a function, press:

SETUP X.X
CFG DAS RNGE PASS CLK

EXIT

SETUP X.X
COMM VARS

EXIT

SETUP X.X
EXIT
Toggle these
keys to enter the
correct

DIAG
PREV

ENTR

Continue pressing

EXIT

until ...

DIAG
PREV NEXT

EXIT

DIAG
EXIT
Toggle these keys to
choose a mass flow
controller TEST
channel parameter.

DIAG
PREV NEXT

EXIT

discards the new
setting.
accepts the
new setting.

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7.4.7. AIN CALIBRATION
This is the submenu to conduct a calibration of the M300E/EM Analyzer’s analog inputs. This calibration should
only be necessary after major repair such as a replacement of CPU, motherboard or power supplies.
To perform an analog input calibration, select the ANALOG I/O CONFIGURATION submenu (see Figure 7-4)
then press:

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7.5. SETUP MORE  ALRM: USING THE GAS
CONCENTRATION ALARMS
The M300E/EM includes two CO concentration alarms if OPT 61 is installed on your instrument. Each alarm has
a user settable limit, and is associated with a Single Pole Double Throw relay output accessible via the alarm
output connector on the instrument’s back panel (See Section 3.3.3). If the CO concentration measured by the
instrument rises above that limit, the alarm‘s status output relay is closed.
The default settings for ALM1 and ALM2 are:
Table 7-11: CO Concentration Alarm Default Settings

ALARM

STATUS

LIMIT SET POINT1

alm1

Disabled

100 ppm

alm2

Disabled

300 ppm

Set points listed are for PPM. Should the reporting range units of measure be changed (See Section
6.6.3) the analyzer will automatically scale the set points to match the new range unit setting.

NOTE
To prevent the concentration alarms from activating during span calibration operations ensure that the
CAL or CALS button is pressed prior to introducing span gas into the analyzer.

7.5.1. SETTING THE M300E CONCENTRATION ALARM LIMITS
To enable either of the CO concentration alarms and set the limit points, press:

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Remote Operation

8. REMOTE OPERATION
8.1. SETUP  MORE COMM: USING THE ANALYSER’S
COMMUNICATION PORTS
The M300E/EM is equipped with two serial communication ports located on the rear panel (see Figure 3-2).
Both ports operate similarly and give the user the ability to communicate with, issue commands to, and receive
data from the analyzer through an external computer system or terminal. By default, both ports operate on the
RS-232 protocol.
 The RS232 port can also be configured to operate in single or RS-232 multidrop mode (option 62; See
Section 5.7.2 and 8.2).
 The COM2 port can be configured for standard RS-232 operation, half-duplex RS-485 communication or
for access via an LAN by installing the Teledyne API’s Ethernet interface card (option 63; See Section
5.7.3 and 8.4).
A Code-Activated Switch (CAS), can also be used on either port to connect typically between 2 and 16
send/receive instruments (host computer(s) printers, data loggers, analyzers, monitors, calibrators, etc.) into one
communications hub. Contact Teledyne API sales for more information on CAS systems.

8.1.1. RS-232 DTE AND DCE COMMUNICATION
RS-232 was developed for allowing communications between Data Terminal Equipment (DTE) and Data
Communication Equipment (DCE). Basic data terminals always fall into the DTE category whereas modems are
always considered DCE devices.
Electronically, the difference between the DCE and DTE is the pin assignment of the Data Receive and Data
Transmit functions.
 DTE devices receive data on pin 2 and transmit data on pin 3.
 DCE devices receive data on pin 3 and transmit data on pin 2.
A switch located below the bottom DB-9 connector on the rear panel allows the user to switch between DTE (for
use with data terminals) or DCE (for use with modems). Since computers can be either DTE or DCE, check your
computer to determine which mode to use.

8.1.2. COMM PORT DEFAULT SETTINGS
Received from the factory, the analyzer is set up to emulate a DCE or modem, with pin 3 of the DB-9 connector
designated for receiving data and pin 2 designated for sending data.
RS-232 RS-232 (fixed) DB-9 male connector.
Baud rate: 19200 bits per second (baud).
Data Bits: 8 data bits with 1 stop bit.
Parity: None.
COM2: RS-232 (configurable to RS 485), DB-9 female connector.
Baud rate:115000 bits per second (baud).
Data Bits: 8 data bits with 1 stop bit.
Parity: None.

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Female DB-9 (COM2)

Male DB-9 (RS-232)

(As seen from outside analyzer)

TXD

TXD
GND

RXD
1

2
6

3
7

4
8

GND

RXD

6
CTS

RTS

3
7

4
8

5
9
CTS

RTS
(DTE mode)

(DTE mode)

RXD
GND

TXD
1

2
6

3
7

4
8

5
9
RTS

CTS
(DCE mode)

Figure 8-1:

Default Pin Assignments for Back Panel COMM Port connectors (RS-232 DCE & DTE)

The signals from these two connectors are routed from the motherboard via a wiring harness to two 10-pin
connectors on the CPU card, J11 (RS-232) and J12 (COM2).

Figure 8-2:

Default Pin Assignments for CPU COM Port connector (RS-232)

Teledyne API offers two mating cables, one of which should be applicable for your use.
 Part number WR000077, a DB-9 female to DB-9 female cable, 6 feet long. Allows connection of the serial
ports of most personal computers. Also available as Option 60 (see Section 5.7.1).
 Part number WR000024, a DB-9 female to DB-25 male cable. Allows connection to the most common
styles of modems (e.g. Hayes-compatible) and code activated switches.
Both cables are configured with straight-through wiring and should require no additional adapters.
NOTE
Cables that appear to be compatible because of matching connectors may incorporate internal wiring
that makes the link inoperable. Check cables acquired from sources other than Teledyne API for pin
assignments before using.
To assist in properly connecting the serial ports to either a computer or a modem, there are activity indicators just
above the RS-232 port. Once a cable is connected between the analyzer and a computer or modem, both the
red and green LEDs should be on.
 If the lights are not lit, use small switch on the rear panel to switch it between DTE and DCE modes.
 If both LEDs are still not illuminated, make sure the cable properly constructed.

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8.1.3. COMM PORT BAUD RATE
To select the baud rate of either one of the COMM ports, press:

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8.1.4. COMM PORT COMMUNICATION MODES
Each of the analyzer’s serial ports can be configured to operate in a number of different modes, listed in Table
8-1. As modes are selected, the analyzer sums the mode ID numbers and displays this combined number on
the front panel display. For example, if quiet mode (01), computer mode (02) and Multi-Drop-Enabled mode (32)
are selected, the analyzer would display a combined MODE ID of 35.
Table 8-1:
1

COMM Port Communication Modes

DESCRIPTION

QUIET

Quiet mode suppresses any feedback from the analyzer (such as warning messages) to
the remote device and is typically used when the port is communicating with a computer
program where such intermittent messages might cause communication problems.
Such feedback is still available but a command must be issued to receive them.

COMPUTER

Computer mode inhibits echoing of typed characters and is used when the port is
communicating with a computer operated control program.

HESSEN
PROTOCOL

E, 8, 1

8192

When turned on this mode switches the COMM port settings from
● NO PARITY; 8 data bits; 1 stop bit to EVEN PARITY; 8 data bits; 1 stop bit.

E, 7, 1

2048

When turned on this mode switches the COM port settings from
● NO PARITY; 8 DATA BITS; 1 stop bit to EVEN PARITY; 7 DATA BITS; 1 stop bit.

RS-485

1024

Configures the COM2 Port for RS-485 communication. RS-485 mode has precedence
over multidrop mode if both are enabled.

SECURITY

When enabled, the serial port requires a password before it will respond (see Section
8.1.7.5). If not logged on, the only active command is the '?' request for the help
screen.

MULTIDROP
PROTOCOL

Multidrop protocol allows a multi-instrument configuration on a single communications
channel. Multidrop requires the use of instrument IDs.

ENABLE
MODEM

Enables to send a modem initialization string at power-up. Asserts certain lines in the
RS-232 port to enable the modem to communicate.

ERROR
CHECKING2

128

Fixes certain types of parity errors at certain Hessen protocol installations.

XON/XOFF
HANDSHAKE2

256

Disables XON/XOFF data flow control also known as software handshaking.

HARDWARE
HANDSHAKE

HARDWARE
FIFO2

512

COMMAND
PROMPT

4096

MODE

The Hessen communications protocol is used in some European countries. T-API P/N
02252 contains more information on this protocol.

Enables CTS/RTS style hardwired transmission handshaking. This style of data
transmission handshaking is commonly used with modems or terminal emulation
protocols as well as by Teledyne Instrument’s APICOM software.
Disables the HARDWARE FIFO (First In – First Out). When FIFO is enabled it improves
data transfer rate for that COM port.
Enables a command prompt when in terminal mode.

Modes are listed in the order in which they appear in the
SETUP  MORE  COMM  COM[1 OR 2]  MODE menu
2
The default setting for this feature is ON. Do not disable unless instructed to by Teledyne API’s Customer Service
personnel.

Note
Communication Modes for each COMM port must be configured independently.

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Press the following keys to select communication modes for a one of the COMM ports, such as the following
example where RS-485 mode is enabled:

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8.1.5. COMM PORT TESTING
The serial ports can be tested for correct connection and output in the COMM menu. This test sends a string of
256 ‘w’ characters to the selected COMM port. While the test is running, the red LED on the rear panel of the
analyzer should flicker.
To initiate the test press the following key sequence:

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8.1.6. MACHINE ID
Each type of Teledyne API’s analyzer is configured with a default ID code.
 The default ID code for the M300E/EM Analyzers is 300.
The ID number is only important if more than one analyzer is connected to the same communications channel
such as when several analyzers are:
 On the same Ethernet LAN (see Section 8.4);
 in a RS-232 multidrop chain (see Section 8.2) or;
 operating over a RS-485 network (See Section 8.3).
If two analyzers of the same model type are used on one channel, the ID codes of one or both of the instruments
needs to be changed.
To edit the instrument’s ID code, press:

The ID can also be used for to identify any one of several analyzers attached to the same network but situated in
different physical locations.

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8.1.7. TERMINAL OPERATING MODES
The M300E/EM can be remotely configured, calibrated or queried for stored data through the serial ports. As
terminals and computers use different communication schemes, the analyzer supports two communicate modes
specifically designed to interface with these two types of devices.
 The COMPUTER MODE is used when the analyzer is connected to a computer with a dedicated interface
program.
 The INTERACTIVE MODE is used with a terminal emulation programs such as HyperTerminal or a “dumb”
computer terminal. The commands that are used to operate the analyzer in this mode are listed in Table
8-2.

8.1.7.1. Help Commands in Terminal Mode
Table 8-2:
COMMAND

Function

Control-T

Switches the analyzer to terminal mode
(echo, edit). If mode flags 1 & 2 are OFF,
the interface can be used in interactive
mode with a terminal emulation program.

Control-C

Switches the analyzer to computer mode
(no echo, no edit).

CR
(carriage return)

BS
(backspace)

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Terminal Mode Software Commands

A carriage return is required after each
command line is typed into the
terminal/computer. The command will not
be sent to the analyzer to be executed until
this is done. On personal computers, this is
achieved by pressing the ENTER key.
Erases one character to the left of the
cursor location.

ESC
(escape)

Erases the entire command line.

?[ID] CR

This command prints a complete list of
available commands along with the
definitions of their functionality to the display
device of the terminal or computer being
used. The ID number of the analyzer is
only necessary if multiple analyzers are on
the same communications line, such as the
multi-drop setup.

Control-C

Pauses the listing of commands.

Control-P

Restarts the listing of commands.

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8.1.7.2. Command Syntax
Commands are not case-sensitive and all arguments within one command (i.e. ID numbers, keywords, data
values, etc.) must be separated with a space character.
All Commands follow the syntax:
X [ID] COMMAND
Where
X

is the command type (one letter) that defines the type of command. Allowed designators
are listed in Appendix A-6.

[ID]

is the machine identification number (Section 8.1.6). Example: the Command “? 700”
followed by a carriage return would print the list of available commands for the revision of
software currently installed in the instrument assigned ID Number 700.

COMMAND

is the command designator: This string is the name of the command being issued (LIST,
ABORT, NAME, EXIT, etc.). Some commands may have additional arguments that define
how the command is to be executed. Press ? or refer to Appendix A-6 for a list of
available command designators.

is a carriage return. All commands must be terminated by a carriage return (usually
achieved by pressing the ENTER key on a computer).
Table 8-3:

Teledyne API’s Serial I/O Command Types

COMMAND

COMMAND TYPE

Calibration

Diagnostic

Logon

Test measurement

Variable

Warning

8.1.7.3. Data Types
Data types consist of integers, hexadecimal integers, floating-point numbers, Boolean expressions and text
strings.
Integer data: Used to indicate integral quantities such as a number of records, a filter length, etc.
 They consist of an optional plus or minus sign, followed by one or more digits.
 For example, +1, -12, 123 are all valid integers.
Hexadecimal integer data: Used for the same purposes as integers.
 They consist of the two characters “0x,” followed by one or more hexadecimal digits (0-9, A-F, a-f), which
is the ‘C’ programming language convention.
 No plus or minus sign is permitted.
 For example, 0x1, 0x12, 0x1234abcd are all valid hexadecimal integers.
Floating-point number: Used to specify continuously variable values such as temperature set points, time
intervals, warning limits, voltages, etc.
 They consist of an optional plus or minus sign, followed by zero or more digits, an optional decimal point
and zero or more digits.
 At least one digit must appear before or after the decimal point.
 Scientific notation is not permitted.

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 For example, +1.0, 1234.5678, -0.1, 1 are all valid floating-point numbers.
Boolean expressions: Used to specify the value of variables or I/O signals that may assume only two values.
 They are denoted by the keywords ON and OFF.
Text strings: Used to represent data that cannot be easily represented by other data types, such as data
channel names, which may contain letters and numbers.
 They consist of a quotation mark, followed by one or more printable characters, including spaces, letters,
numbers, and symbols, and a final quotation mark.
 For example, “a”, “1”, “123abc”, and “()[]<>” are all valid text strings.
 It is not possible to include a quotation mark character within a text string.
Some commands allow you to access variables, messages, and other items. When using these commands, you
must type the entire name of the item; you cannot abbreviate any names.

8.1.7.4. Status Reporting
Reporting of status messages as an audit trail is one of the three principal uses for the RS-232 interface (the
other two being the command line interface for controlling the instrument and the download of data in electronic
format). You can effectively disable the reporting feature by setting the interface to quiet mode (see Section
8.1.4, Table 8-1).
Status reports include warning messages, calibration and diagnostic status messages. Refer to Appendix A-3
for a list of the possible messages, and this for information on controlling the instrument through the RS-232
interface.
General Message Format:
All messages from the instrument (including those in response to a command line request) are in the format:
X DDD:HH:MM [Id] MESSAGE
Where:
X

is a command type designator, a single character indicating the message type, as
shown in the Table 8-3.

DDD:HH:MM is the time stamp, the date and time when the message was issued. It consists of the
Day-of-year (DDD) as a number from 1 to 366, the hour of the day (HH) as a number
from 00 to 23, and the minute (MM) as a number from 00 to 59.
[ID]

is the analyzer ID, a number with 1 to 4 digits.

MESSAGE

is the message content that may contain warning messages, test measurements,
variable values, etc.

is a carriage return / line feed pair, which terminates the message.

The uniform nature of the output messages makes it easy for a host computer to parse them into an easy
structure. Keep in mind that the front panel display does not give any information on the time a message was
issued, hence it is useful to log such messages for trouble-shooting and reference purposes. Terminal emulation
programs such as HyperTerminal can capture these messages to text files for later review.

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8.1.7.5. COMM Port Password Security
In order to provide security for remote access of the M300E/EM, a LOGON feature can be enabled to require a
password before the instrument will accept commands. This is done by turning on the SECURITY MODE (Mode
4, Table 8-1.
Once the SECURITY MODE is enabled, the following items apply.
 A password is required before the port will respond or pass on commands.
 If the port is inactive for one hour, it will automatically logoff, which can also be achieved with the LOGOFF
command.
 Three unsuccessful attempts to log on with an incorrect password will cause subsequent logins to be
disabled for 1 hour, even if the correct password is used.
 If not logged on, the only active command is the '?' request for the help screen.
 The following messages will be returned at logon:
 LOGON SUCCESSFUL - Correct password given
 LOGON FAILED - Password not given or incorrect
 LOGOFF SUCCESSFUL - Connection terminated successfully

To log on to the M300E/EM Analyzer with SECURITY MODE feature enabled, type:
LOGON 940331
NOTE
940331 is the default password.

To change the default password, use the variable RS-232_PASS issued as follows:
V RS-232_PASS=NNNNNN
Where N is any numeral between 0 and 9.

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8.2. MULTIDROP RS-232 SET UP
The RS-232 multidrop consists of a printed circuit assembly that is seated on the CPU card and is connected by
a Y-ribbon cable from its J3 connector to the CPU’s COM1 and COM2 connectors. This PCA includes all
circuitry required to enable your analyzer for multidrop operation. It converts the instrument’s RS232 port to
multidrop configuration allowing up to eight Teledyne API’s E-Series Analyzers to be connected to the same I/O
port of the host computer.
Because both of the DB9 connectors on the analyzer’s back panel are needed to construct the multidrop chain,
COM2 is no longer available for separate RS-232 or RS-485 operation; however, with the addition of an Ethernet
Option (Option 63A, See Section 5.7.3 and 8.4) the COM2 port is available for communication over a 10BaseT
LAN.

Figure 8-3:

Location of JP2 on RS-232-Multidrop PCA (Option 62)

Each analyzer or analyzer in the multidrop chain must have:
 One Teledyne API’s Option 62 installed.
 One 6’ straight-through, DB9 male  DB9 Female cable (Teledyne API’s P/N WR0000101) is required for
each analyzer.
To set up the network, for each instrument:
1. With NO power to the instrument, remove its top cover and locate JP2 on the multidrop PCA, which is
assembled with a shunt that jumpers Pins 21  22 (Error! Reference source not found.).
2. Remove and store the shunt (place the shunt on one pin only) for all instruments in the network except
the instrument that is to be the last: make sure a shunt is in place connecting Pins 21  22 for the last
instrument.

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Note: If you are adding an instrument to the end of a previously configured chain, remove the shunt
between Pins 21  22 of JP2 on the multidrop PCA in the instrument that was previously the last
instrument in the chain.
3. Close the instrument.
4. Using straight-through, DB9 male  DB9 Female cable, interconnect the host and the analyzers as
shown in Figure 8-4.
5. BEFORE communicating from the host, power on the instruments and check that the Machine ID code is
unique for each. (On the front panel menu, use SETUP>MORE>COMM>ID. Note that the default ID is
typically the model number; to change the 4-digit identification number, press the key below the
corresponding digit to be changed).
NOTE
Teledyne API recommends setting up the first link, between the Host and the first instrument and testing
it before setting up the rest of the chain.

KEY:

Host

Female DB9

RS-232 port

Male DB9

CALIBRATOR

TAPI Analyzer

COM2

Last
INSTRUMENT
COM2

RS-232

RS-232
RS-232

Make Sure
Jumper between
JP2 pins 21  22
is installed.

Figure 8-4:

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8.3. RS-485 CONFIGURATION OF COM2
As delivered from the factory, COM2 is configured for RS-232 communications. This port can be reconfigured
for operation as a non-isolated, half-duplex RS-485 port capable of supporting up to 32 instruments with a
maximum distance between the host and the furthest instrument being 4000 feet. If you require full duplex or
isolated operation, please contact Teledyne API’s Customer Service.
To reconfigure COM2 as an RS-485 port:
 Locate J32 and move the shunt from Pins 1  2 to Pins 3  4.
 Remove the connector from J12.
 Plug the RS-485 connector into J15.

Figure 8-5:

CPU RS-485 Setup

When COM2 is configured for RS-485 operation the port uses the same female DB-9 connector on the back of
the instrument as when COM2 is configured for RS-232 operation, however, the pin assignments are different.

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Female DB-9 (COM2)
(As seen from outside analyzer)

RX/TXGND

RX/TX+
1

2
6

3
7

4
8

5
9

(RS-485)

Figure 8-6:

Back Panel Connector Pin-Outs for COM2 in RS-485 Mode.

The signal from this connector is routed from the motherboard via a wiring harness to a 3-pin connector on the
CPU card, J15.

Figure 8-7:

CPU Connector Pin-Outs for COM2 in RS-485 Mode

NOTE
The DCE/DTE switch has no effect on COM2.

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8.4. REMOTE ACCESS VIA THE ETHERNET
When equipped with the optional Ethernet interface, the analyzer can be connected to any standard 10BaseT
Ethernet network via low-cost network hubs, switches or routers. The interface operates as a standard TCP/IP
device on port 3000. This allows a remote computer to connect through the internet to the analyzer using
APICOM, terminal emulators or other programs.
The firmware on board the Ethernet card automatically sets the communication modes and baud rate (115,200
kBaud) for the COM2 port. Once the Ethernet option is installed and activated, the COM2 submenu is replaced
by a new submenu, INET. This submenu is used to manage and configure the Ethernet interface with your LAN
or Internet Server(s).
The card has four LEDs that are visible on the rear panel of the analyzer, indicating its current operating status.
Table 8-4:

Ethernet Status Indicators

LED

FUNCTION

LNK (green)

ON when connection to the LAN is valid.

ACT (yellow)

Flickers on any activity on the LAN.

TxD (green)

Flickers when the RS-232 port is transmitting data.

RxD (yellow)

Flickers when the RS-232 port is receiving data.

The Ethernet interface operates in ”polled” mode with a polling period that ranges from between 250 ms and 2
seconds.
 When there is port activity, the polling rate is the minimum, 250 ms.
 When port activity is quiet, the polling rate lengthens to up to 2-seconds to reduce the burden on the
instruments CPU.
NOTE
Commands should not be issued faster than twice a second for reliable operation.

8.4.1. ETHERNET CARD COM2 COMMUNICATION MODES AND BAUD
RATE
The firmware on board the Ethernet card automatically sets the communication modes for the COM2 port. The
baud rate is also automatically set at 115,200 kBaud.

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8.4.2. CONFIGURING THE ETHERNET INTERFACE OPTION USING DHCP
The Ethernet option for you M300E/EM uses Dynamic Host Configuration Protocol (DHCP) to configure its
interface with your LAN automatically. This requires your network servers also be running DHCP. The analyzer
will do this the first time you turn the instrument on after it has been physically connected to your network. Once
the instrument is connected and turned on, it will appear as an active device on your network without any extra
set up steps or lengthy procedures.
NOTE
It is a good idea to check the INET settings the first time you power up your analyzer after it has been
physically connected to the LAN/Internet to make sure that the DHCP has successfully downloaded the
appropriate information from you network server(s).
The Ethernet configuration properties are viewable via the analyzer’s front panel.
Table 8-5:
PROPERTY

LAN/Internet Configuration Properties

DEFAULT STATE

DESCRIPTION

DHCP STATUS

Editable

This displays whether the DHCP is turned ON or OFF.

INSTRUMENT
IP ADDRESS

Configured by
DHCP

EDIT key
disabled when
DHCP is ON

This string of four packets of 1 to 3 numbers each (e.g.
192.168.76.55.) is the address of the analyzer itself.

GATEWAY IP
ADDRESS

Configured by
DHCP

EDIT key
disabled when
DHCP is ON

A string of numbers very similar to the Instrument IP address
(e.g. 192.168.76.1.) that is the address of the computer used by
your LAN to access the Internet.

Configured by
DHCP

EDIT key
disabled when
DHCP is ON

Also, a string of four packets of 1 to 3 numbers each (e.g.
255.255.252.0) that defines that identifies the LAN to which the
device is connected.
All addressable devices and computers on a LAN must have the
same subnet mask. Any transmissions sent devices with
different subnet masks are assumed to be outside of the LAN
and are routed through a different gateway computer onto the
Internet.

3000

Editable, but
DO NOT
CHANGE

TSP listening port 1. This port is used for standard Ethernet
communications. The number defines the terminal control port
by which the instrument is addressed by terminal emulation
software, such as Teledyne API’s APICOM.

TCP PORT21

520

Editable, but
DO NOT
CHANGE

TSP listening port 2. This port is reserved for the M300E/EM
Analyzer’s optional Modbus® capability. The number matches
®
the default address specified by Modbus specifications.

HOST NAME

DEFAULT =
Model Type

Editable

The name by which your analyzer appears when addressed by
other computers on the LAN or via the Internet. While the
default setting is the model type (e.g. M300E, etc.) the host
name may be changed to fit customer needs.

ONLINE

Editable

Enables or disables the M300E/EM Analyzer’s two TCP Ports.
The TCP ports are inactive when this is set to OFF.

SUBNET MASK

TCP PORT1

DO NOT CHANGE the setting for this property unless instructed to by Teledyne API’s Customer Service personnel.

NOTE
If the gateway IP, instrument IP and the subnet mask are all zeroes (e.g. “0.0.0.0”), the DCHP was not
successful in which case you may have to configure the analyzer’s Ethernet properties manually.
See your network administrator.

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To view the above properties listed in Table 8-5, press:

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8.4.3. MANUALLY CONFIGURING THE NETWORK IP ADDRESSES
There are several circumstances when you may need to configure the interface settings of the analyzer’s
Ethernet card manually. The INET submenu may also be used to edit the Ethernet card’s configuration
properties.
 Your LAN is not running a DHCP software package;
 The DHCP software is unable to initialize the analyzer’s interface;
 You wish to program the interface with a specific set of IP addresses that may not be the ones
automatically chosen by DHCP.
Editing the Ethernet Interface properties is a two-step process. start /low firmware.exe /y
STEP 1: Turn DHCP OFF: While DHCP is turned ON, the ability to set the INSTRUMENT IP, GATEWAY IP and
SUBNET MASK manually is disabled.

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SAMPLE
CAL

SETUP X.X

SETUP

PRIMARY SETUP MENU

CFG DAS RNGE PASS CLK MORE

SETUP X.X

SECONDARY SETUP MENU

COMM VARS

DIAG

SETUP X.X
ID ADDR

SETUP X.X

INET

SETUP X.X

ENTR EXIT

DHCP:ON

ENTR accepts
the new setting
EXIT ignores the
new setting

EXIT

DHCP:ON

SETUP X.X

EXIT

ENTER PASSWORD:818

EDIT

Toggle this key
to turn DHCP
ON/OFF

EXIT

COMMUNICATIONS MENU

SETUP X.X
8

EXIT

ENTR EXIT

DHCP:OFF

OFF

ENTR EXIT

Continue to Step 2 Below

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STEP 2: Configure the INSTRUMENT IP, GATEWAY IP and SUBNET MASK addresses by pressing:

KEY

FUNCTION

[0]

Press this key to cycle through the range of
numerals and available characters (“0 – 9” & “ . ”)

Moves the cursor one character to the left or
right.

INS

Inserts a character before the cursor location.

DEL

Deletes a character at the cursor location.

Some keys only appear as needed.

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8.4.4. CHANGING THE ANALYZER’S HOSTNAME
The HOSTNAME is the name by which the analyzer appears on your network.
 The default name for all Teledyne API’s M300E Analyzers is M300E.
 The default name for all Teledyne API’s M300EM Analyzers is M300EM.
To change this name (particularly if you have more than one M300E/EM Analyzer on your network), press:

KEY

Moves the cursor one character to the right.

INS

Inserts a character before the cursor location.

DEL
[?]

Deletes a character at the cursor location.
Press this key to cycle through the range of
numerals and characters available for
insertion. 0-9, A-Z, space ’ ~ !  # $ % ^ & * (
) - _ = +[ ] { } < >\ | ; : , . / ?

ENTR

Accepts the new setting and returns to the
previous menu.

EXIT

Ignores the new setting and returns to the
previous menu.

Some keys only appear as needed.

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8.5. MODBUS SETUP
The following set of instructions assumes that the user is familiar with MODBUS communications, and provides
minimal information to get started. For additional instruction, please refer to the Teledyne API MODBUS manual,
PN 06276. Also refer to www.modbus.org for MODBUS communication protocols.

Minimum Requirements
 Instrument firmware with MODBUS capabilities installed.
 MODBUS-compatible software (TAPI uses MODBUS Poll
 Personal computer
 Communications cable (Ethernet or USB or RS232)
 Possibly a null modem adapter or cable

for testing; see www.modbustools.com)

Actions
Set Com Mode parameters
Comm
Ethernet:

Slave ID

Using the front panel menu, go to SETUP – MORE – COMM – INET; scroll through the INET
submenu until you reach TCP PORT 2 (the standard setting is 502), then continue to TCP
PORT 2 MODBUS TCP/IP; press EDIT and toggle the menu button to change the setting to
ON, then press ENTR. (Change Machine ID if needed: see “Slave ID”).

RS232: Using the front panel menu, go to SETUP – MORE – COMM – COM2 – EDIT; scroll through the
COM2 EDIT submenu until the display shows COM2 MODBUS RTU: OFF (press OFF to
change the setting to ON. Scroll NEXT to COM2 MODBUS ASCII and ensure it is set to
OFF. Press ENTR to keep the new settings. (If RTU is not available with your
communications equipment, set the COM2 MODBUS ASCII setting to ON and ensure that
COM2 MODBUS RTU is set to OFF. Press ENTR to keep the new settings).
A MODBUS slave ID must be set for each instrument. Valid slave ID’s are in the range of 1 to 247. If
your analyzer is connected to a serial network (ie. RS-485), a unique Slave ID must be assigned to each
instrument. To set the slave ID for the instrument, go to SETUP – MORE – COMM – ID. The default
MACHINE ID is the same as the model number. Toggle the menu buttons to change the ID.

Reboot analyzer

For the settings to take effect, power down the analyzer, wait 5 seconds, and power up the analyzer.

Make appropriate cable
connections



Specify MODBUS software
settings
(examples used here are for
MODBUS Poll software)

Read the Modbus Poll Register

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Connect your analyzer either:
via its Ethernet or USB port to a PC (this may require a USB-to-RS232 adapter for your PC; if so, also
install the sofware driver from the CD supplied with the adapter, and reboot the computer if required), or
 via its COM2 port to a null modem (this may require a null modem adapter or cable).
Click Setup / [Read / Write Definition] /.
a. In the Read/Write Definition window (see example that follows) select a Function (what you wish
to read from the analyzer).
b. Input Quantity (based on your firware’s register map).
c. In the View section of the Read/Write Definition window select a Display (typically Float Inverse).
d. Click OK.
2. Next, click Connection/Connect.
a. In the Connection Setup window (see example that follows), select the options based on your
computer.
b. Press OK.
Use the Register Map to find the test parameter names for the values displayed (see example that follows
If desired, assign an alias for each.
1.

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Example Read/Write Definition window:

Example Connection Setup window:

Example MODBUS Poll window:

8.5.1. REMOTE ACCESS BY MODEM
The M300E/EM can be connected to a modem for remote access. This requires a cable between the analyzer’s
COMM port and the modem, typically a DB-9F to DB-25M cable (available from Teledyne API with P/N
WR0000024).
Once the cable has been connected, check to make sure:
 The DTE-DCE is in the DCE position.
 The M300E/EM COMM port is set for a baud rate that is compatible with the modem,
 The modem is designed to operate with an 8-bit word length with one stop bit.
 The MODEM ENABLE communication mode is turned on (Mode 64, see Table 8-1).
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Once this is completed, the appropriate setup command line for your modem can be entered into the analyzer.
The default setting for this feature is:
AT Y0 &D0 &H0 &I0 S0=2 &B0 &N6 &M0 E0 Q1 &W0
This string can be altered to match your modem’s initialization and can be up to 100 characters long.
To change this setting press:

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To initialize the modem press:

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8.6. USING THE M300E/EM WITH A HESSEN PROTOCOL
NETWORK
8.6.1. GENERAL OVERVIEW OF HESSEN PROTOCOL
The Hessen protocol is a multidrop protocol, in which several remote instruments are connected via a common
communications channel to a host computer. The remote instruments are regarded as slaves of the host
computer. The remote instruments are unaware that they are connected to a multidrop bus and never initiate
Hessen protocol messages. They only respond to commands from the host computer and only when they
receive a command containing their own unique ID number.
The Hessen protocol is designed to accomplish two things: to obtain the status of remote instruments, including
the concentrations of all the gases measured; and to place remote instruments into zero or span calibration or
measure mode. API’s implementation supports both of these principal features.
The Hessen protocol is not well defined, therefore while API’s application is completely compatible with the
protocol itself, it may be different from implementations by other companies.
NOTE
The following sections describe the basics for setting up your instrument to operate over a Hessen
Protocol network.
For more detailed information as well as a list of host computer commands and examples of command
and response message syntax, download the Manual Addendum for Hessen Protocol from the Teledyne
API web site: http://www.teledyne-api.com/manuals/.

8.6.2. HESSEN COMM PORT CONFIGURATION
Hessen protocol requires the communication parameters of the M300E/EM Analyzer’s COMM ports to be set
differently than the standard configuration as shown in Table 8-6.
Table 8-6: RS-232 Communication Parameters for Hessen Protocol
PARAMETER

STANDARD

HESSEN

Baud Rate

300 – 19200

1200

Data Bits

Stop Bits

Parity

None

Even

Duplex

Full

Half

To change the baud rate of the M300E/EM’s COMM ports, see Section 8.1.3.
To change the rest of the COMM port parameters listed in the Table 8-6. Also see Section 8.1 and Table 8-1.
Note
Make sure that the communication parameters of the host computer are also properly set.
Also, the instrument software has a 200 ms latency period before it responds to commands issued by
the host computer. This latency should present no problems, but you should be aware of it and not
issue commands to the instrument too frequently.

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8.6.3. ACTIVATING HESSEN PROTOCOL
Once the COMM port has been properly configured, the next step in configuring the M300E/EM to operate over a
Hessen protocol network is to activate the Hessen mode for COMM ports and configure the communication
parameters for the port(s) appropriately.
To activate the Hessen Protocol, press:

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8.6.4. SELECTING A HESSEN PROTOCOL TYPE
Currently there are two versions of Hessen Protocol in use. The original implementation, referred to as TYPE 1,
and a more recently released version, TYPE 2 that has more flexibility when operating with instruments that can
measure more than one type of gas.
For more specific information about the difference between TYPE 1 and TYPE 2 download the Manual
Addendum for Hessen Protocol from the Teledyne API web site: http://www.teledyne-api.com/manuals/.
To select a Hessen Protocol Type press:

NOTE
While Hessen Protocol Mode can be activated independently for COM1 and COM2 in the
COMMUNICATIONS MENU, the TYPE selection affects both Ports.

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8.6.5. SETTING THE HESSEN PROTOCOL RESPONSE MODE
The Teledyne API’s implementation of Hessen Protocol allows the user to choose one of several different modes
of response for the analyzer.
Table 8-7:

Teledyne API’s Hessen Protocol Response Modes

MODE ID

MODE DESCRIPTION

CMD

This is the Default Setting. Reponses from the instrument are encoded as the traditional
command format. Style and format of responses depend on exact coding of the initiating
command.

BCC

Responses from the instrument are always delimited with (at the beginning of the
response, (at the end of the response followed by a 2 digit Block Check Code
(checksum), regardless of the command encoding.

TEXT

Responses from the instrument are always delimited with at the beginning and the
end of the string, regardless of the command encoding.

To select a Hessen response mode, press:

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8.6.6. HESSEN PROTOCOL GAS LIST ENTRIES
8.6.6.1. Gas List Entry Format and Definitions
The M300E/EM Analyzer keeps a list of available gas types. Each entry in this list is of the following format.

[GAS TYPE],[RANGE],[GAS ID],[REPORTED]
WHERE:
GAS TYPE

= The type of gas to be reported (e.g. CO, CO2, O2, etc.).

RANGE

= The concentration range for this entry in the gas list. This feature permits the user to
select which concentration range will be used for this gas list entry. The M300E/EM
Analyzer has two ranges: RANGE1 or LOW & RANGE2 or HIGH (See Section 6.6.1).
0 - The HESSEN protocol to use whatever range is currently active.
1 - The HESSEN protocol will always use RANGE1 for this gas list entry.
2 - The HESSEN protocol will always use RANGE2 for this gas list entry.
3 - Not applicable to the M300E/EM Analyzer.

GAS ID

= An identification number assigned to a specific gas. In the case of the M300E/EM
Analyzer in its base configuration, there is only one gas CO, and its default GAS ID is
310. (Note: This ID number should not be modified).

REPORT

= States whether this list entry is to be reported or not reported when ever this gas type or
instrument is polled by the HESSEN network. If the list entry is not to be reported this
field will be blank.

While the M300E/EM Analyzer is a single gas instrument that measures CO, it can have additional, optional
sensors for CO2 or O2 installed. The default gas list entries for these three gases are:

CO, 0, 310, REPORTED
CO2, 0, 311, REPORTED
O2, 0, 312, REPORTED
These default settings cause the instrument to report the concentration value of the currently active range. If you
wish to have just concentration value stored for a specific range, this list entry should be edited or additional
entries should be added to the list.
EXAMPLE: Changing the above CO gas list entry to read:

CO, 2, 310, REPORTED
would cause only the last CO reading while RANGE2 (HIGH) range was active to be recorded.

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8.6.6.2. Editing or Adding HESSEN Gas List Entries
To add or edit an entry to the Hessen Gas List, press:

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8.6.6.3. Deleting HESSEN Gas List Entries
To delete an entry from the Hessen Gas list, press:

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8.6.7. SETTING HESSEN PROTOCOL STATUS FLAGS
Teledyne API’s implementation of Hessen protocols includes a set of status bits that the instrument includes in
responses to inform the host computer of its condition. Each bit can be assigned to one operational and warning
message flag. The default settings for these bit/flags are:
Table 8-8:

Default Hessen Status Flag Assignments
DEFAULT BIT
ASSIGNMENT

STATUS FLAG NAME
WARNING FLAGS
SAMPLE FLOW WARNING

0001

BENCH TEMP WARNING

0002

SOURCE WARNING

0004

BOX TEMP WARNING

0008

WHEEL TEMP WARNING

0010

SAMPLE TEMP WARN

0020

SAMPLE PRESS WARN

0040

INVALID CONC
(The Instrument’s Front Panel Display Will Show The
Concentration As “Warnings”)

0080

OPERATIONAL FLAGS1
Instrument OFF

0100

In MANUAL Calibration Mode

0200

In ZERO Calibration Mode

0400

In O2 Calibration Mode (if O2 sensor installed )

2,4

In CO2 Calibration Mode (if CO2 sensor installed )

0400
2,4

0400

In SPAN Calibration Mode

0800

UNITS OF MEASURE FLAGS
UGM

0000

MGM

2000

PPB

4000

PPM

6000

SPARE/UNUSED BITS

1000, 8000

UNASSIGNED FLAGS (0000)
2

DCPS WARNING

AZERO WARN

CANNOT DYN SPAN

REAR BOARD NOT DET

SYNC WARNING

CANNOT DYN ZERO
CONC ALARM 1

CONC ALARM 2

2
3
3

SYSTEM RESET

These status flags are standard for all instruments and should probably not be
modified.
Only applicable if the optional internal span gas generator is installed.
Only applicable if the analyzer is equipped with an alarm options.
It is possible to assign more than one flag to the same Hessen status bit. This
allows the grouping of similar flags, such as all temperature warnings, under the
same status bit.
Be careful not to assign conflicting flags to the same bit as each status bit will be
triggered if any of the assigned flags is active.

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To assign or reset the status flag bit assignments, press:

CAL

SETUP X.X
CFG DAS RNGE PASS CLK

EXIT

SETUP X.X
VARS

DIAG

EXIT

SETUP X.X
ID

COM1 COM2

EXIT

SETUP X.X
EDIT PRNT EXIT

Continue pressing

until ...

Continue pressing
until desired
flag message is displayed

SETUP X.X
PREV NEXT

PRNT EXIT

SETUP X.X

discards the
new setting.

The
and
keys move the cursor
brackets “
left and right along the
bit string.

accepts the
new setting.

deletes the
character currently
inside the cursor
brackets.

Press the
key repeatedly to cycle
through the available character set:
: Values of
can also be set
but are meaningless.

8.6.8. INSTRUMENT ID CODE
Each instrument on a Hessen Protocol network must have a unique ID code. If more than one M300E/EM
Analyzer is on the Hessen network, you will have to change this code for all but one of the M300E/EM Analyzer’s
on the Hessen network (see Section 8.1.6).
 The default ID code for the M300E/EM Analyzers is 300.

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8.7. APICOM REMOTE CONTROL PROGRAM
APICOM is an easy-to-use, yet powerful interface program that allows the user to access and control any of
Teledyne API’s main line of ambient and stack-gas instruments from a remote connection through direct cable,
modem or Ethernet. Running APICOM, a user can:


Establish a link from a remote location to the M300E/EM through direct cable connection via RS-232
modem or Ethernet.



View the instrument’s front panel and remotely access all functions that could be accessed when
standing in front of the instrument.



Remotely edit system parameters and set points.



Download, view, graph and save data for predictive diagnostics or data analysis.



Check on system parameters for trouble-shooting and quality control.

APICOM is very helpful for initial setup, data analysis, maintenance and troubleshooting. Figure 8-8 shows
example of APICOM’s main interface, which emulates the look and functionality of the instruments actual front
panel.

Figure 8-8:

APICOM Remote Control Program Interface

NOTE
APICOM is included free of cost with the analyzer and the latest versions can also be downloaded for
free at http://www.teledyne-api.com/man

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9. CALIBRATION PROCEDURES
This section contains a variety of information regarding the various methods for calibrating a M300E/EM as well
as other supporting information. For information on EPA protocol calibration, please refer to Section 10.
This section is organized as follows:
SECTION 9.1 – BEFORE CALIBRATION
This section contains general information you should know before about calibrating the analyzer.
SECTION 9.2– MANUAL CALIBRATION CHECKS AND CALIBRATION OF THE M300E/EM ANALYZER IN
ITS BASE CONFIGURATION
This section describes the procedure for checking the calibrating of the M300E/EM and calibrating the instrument
with no zero/span valves installed or if installed, not operating.
It requires that zero air and span gas is inlet through the SAMPLE port.
Also included are instructions for selecting the reporting range to be calibrated when the M300E/EM Analyzer is
set to operate in either the DUAL or AUTO reporting range modes.
SECTION 9.3 – MANUAL CALIBRATION AND CAL CHECKS WITH VALVE OPTIONS INSTALLED
This section describes:
 The procedure for manually checking the calibration of the instrument with optional zero/span valves
option installed.
 The procedure for manually calibrating the instrument with zero/span valves.
 Instructions on activating the zero/span valves via the control in contact closures of the analyzers external
digital I/O.
SECTION 9.4 – AUTOMATIC ZERO/SPAN CAL/CHECK (AUTOCAL)
This section describes the procedure for using the AutoCal feature of the analyzer to check or calibrate the
instrument.
 The AutoCal feature requires that either the zero/span valve option or the internal span gas generator
option be installed and operating. NOTE: This practice is not approved by the US EPA.
SECTION 9.5 – CO CALIBRATION QUALITY ANALYSIS
This section describes how to judge the effectiveness of a recently performed calibration.
SECTION 9.6 – CALIBRATION OF M300E/EM ANALYZER’S ELECTRONIC SUBSYSTEMS
This section describes how to perform calibrations of the M300E/EM Analyzer’s electronic systems, including:
 Dark Calibration of the optical bench.
 The pressure and flow sensors.
SECTION 9.7 – CALIBRATION OF OPTIONAL GAS SENSORS
This section describes how to perform calibrations of the various optional sensors available on the M300E/EM
Analyzers, including:
 The O2 Sensor, and;
 The CO2 Sensor.
NOTE
Throughout this section are various diagrams showing pneumatic connections between the M300E/EM
and various other pieces of equipment such as calibrators and zero air sources.
These diagrams are only intended to be schematic representations of these connections and do not
reflect actual physical locations of equipment and fitting location or orientation.
Contact your regional EPA or other appropriate governing agency for more detailed recommendations.

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9.1. BEFORE CALIBRATION
The calibration procedures in this section assume that the range mode, analog range and units of measure have
already been selected for the analyzer. If this has not been done, please do so before continuing (see Section
6.6 for instructions).
NOTE
If any problems occur while performing the following calibration procedures, refer to Section 12 for
troubleshooting tips.

9.1.1. REQUIRED EQUIPMENT, SUPPLIES, AND EXPENDABLES
Calibration of the M300E/EM Analyzer requires a certain amount of equipment and supplies. These include, but
are not limited to, the following:
 Zero-air source.
 Span gas source.
 Gas lines - All Gas lines should be PTFE (Teflon), FEP, glass, stainless steel or brass.
 A recording device such as a strip-chart recorder and/or data logger (optional). For electronic
documentation, the internal data acquisition system iDAS can be used.
NOTE
If any problems occur while performing the following calibration procedures, refer to Section 12 of this
manual for troubleshooting tips.

9.1.2. CALIBRATION GASES
9.1.2.1. Zero Air
Zero air or zero calibration gas is defined as a gas that is similar in chemical composition to the measured
medium but without the gas to be measured by the analyzer.
For the M300E/EM zero air should contain less than 25 ppb of CO and other major interfering gases such as CO
and Water Vapor. It should have a dew point of -5C or less.
If your application is not a measurement in ambient air, the zero calibration gas should be matched to the
composition of the gas being measured.
 Pure nitrogen (N2) can be used as a zero gas for applications where CO is measured in nitrogen.
 If your analyzer is equipped with an external zero air scrubber option, it is capable of creating zero air from
ambient air.
For analyzers without the zero air scrubber, a zero air generator such as the Teledyne API’s M701 can be used.
Please visit the company website for more information.

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9.1.2.2. Span Gas
Span Gas is a gas specifically mixed to match the chemical composition of the type of gas being measured at
near full scale of the desired measurement range. It is recommended that the span gas used have a
concentration equal to 80-90% of the full measurement range. If Span Gas is sourced directly from a calibrated,
pressurized tank, the gas mixture should be CO mixed with Zero Air or N2 at the required ratio.
For oxygen measurements using the optional O2 sensor, we recommend a reference gas of 21% O2 in N2.
 For quick checks, ambient air can be used at an assumed concentration of 20.8%.
 Generally, O2 concentration in dry, ambient air varies by less than 1%.

9.1.2.3. Traceability
All equipment used to produce calibration gases should be verified against standards of the National Institute for
Standards and Technology (NIST). To ensure NIST traceability, we recommend to acquire cylinders of working
gas that are certified to be traceable to NIST Standard Reference Materials (SRM). These are available from a
variety of commercial sources.
Table 9-1:
NIST-SRM

TYPE

NOMINAL CONCENTRATION

1680b

CO in N2

500 ppm

1681b

CO in N2

1000 ppm

2613a

CO in Zero Air

20 ppm

2614a

CO in Zero Air

45 ppm

2659a

O2 in N2

21% by weight

2626a

CO2 in N2

4% by weight

27452

CO2 in N2

16% by weight

1
2

NIST-SRMs Available for Traceability of CO Calibration Gases

Used to calibrate optional O2 sensor.
Used to calibrate optional CO2 sensor.

NOTE
It is generally a good idea to use 80% of the reporting range for that channel for the span point
calibration.
For instance if the reporting range of the instrument is set for 50.0 PPM, the proper span gas would be
40.0 PPM

9.1.3. DATA RECORDING DEVICES
A strip chart recorder, data acquisition system or digital data acquisition system should be used to record data
from the serial or analog outputs of the M300E/EM.
 If analog readings are used, the response of the recording system should be checked against a NIST
traceable voltage source or meter.
 Data recording devices should be capable of bi-polar operation so that negative readings can be recorded.
 For electronic data recording, the M300E/EM provides an internal data acquisition system (iDAS), which is
described in detail in Section 7.1
APICOM, a remote control program, is also provided as a convenient and powerful tool for data handling,
download, storage, quick check and plotting (see Section 8.4).

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9.2. MANUAL CALIBRATION CHECKS AND CALIBRATION OF
THE M300E/EM ANALYZER IN ITS BASE CONFIGURATION
ZERO/SPAN CALIBRATION CHECKS VS. ZERO/SPAN CALIBRATION
Pressing the ENTR key during the following procedure resets the stored values for OFFSET and SLOPE
and alters the instrument’s Calibration.
This should ONLY BE DONE during an actual calibration of the M300E/EM.
NEVER press the ENTR key if you are only checking calibration.

9.2.1. SETUP FOR BASIC CALIBRATION CHECKS AND CALIBRATION
STEP ONE: Connect the Sources of Zero Air and Span Gas as shown below.

Figure 9-1:

188

Pneumatic Connections – Basic Configuration – Using Bottled Span Gas

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Figure 9-2:

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Pneumatic Connections – Basic Configuration – Using Gas Dilution Calibrator

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9.2.2. PERFORMING A BASIC MANUAL CALIBRATION CHECK

NOTE
If the ZERO or SPAN keys are not displayed, the measurement made during is out of the allowable range
allowed for a reliable calibration.
See Section 12 for troubleshooting tips.

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9.2.3. PERFORMING A BASIC MANUAL CALIBRATION
The following section describes the basic method for manually calibrating the M300E/EM.
If the analyzer’s reporting range is set for the AUTO range mode, a step will appear for selecting which range is
to be calibrated (LOW or HIGH). Each of these two ranges MUST be calibrated separately.

9.2.3.1. Setting the Expected Span Gas Concentration
NOTE
When setting expected concentration values, consider impurities in your span gas.
The expected CO span gas concentration should be 80% of the reporting range of the instrument (see Section
6.6.1).
The default factory setting is 40 ppm. To set the span gas concentration, press:
SAMPLE

RANGE=50.0PPM

< TST

CAL

MSG

CO=XX.XX
SETUP

SAMPLE
O2

EXIT

HIGH

EXIT

Only appears if either
the O2 or CO2
Sensors are installed.

SAMPLE
Only appears if the
or
range modes are selected.
Use these keys to choose the
appropriate range.
Repeat entire procedure for each
range.

M-P CAL

RANGE=50.0PPM

ZERO SPAN

CO=XX.XX
EXIT

ignores the new
setting and returns to
the previous display.

The CO span concentration value is
automatically default to
.
4
If this is not the the concentration of
the span gas being used, toggle
these buttons to set the correct
concentration of the CO
calibration gas.

accepts the new
setting and returns to
the

NOTE
For this Initial Calibration it is important to independently verify the PRECISE CO Concentration Value of
the SPAN gas.
If the source of the Span Gas is from a Calibrated Bottle, use the exact concentration value printed on
the bottle.

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9.2.3.2. Zero/Span Point Calibration Procedure

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9.3. MANUAL CALIBRATION WITH ZERO/SPAN VALVES
There are a variety of valve options available on the M300E/EM for handling calibration gases (see Section 5.6
for descriptions of each).
Generally performing calibration checks and zero/span point calibrations on analyzers with these options
installed is similar to the methods discussed in the previous sections of this section. The primary differences are:
 On instruments with Z/S valve options, zero air and span gas is supplied to the analyzer through other gas
inlets besides the sample gas inlet.
 The zero and span calibration operations are initiated directly and independently with dedicated keys
(CALZ & CALS).

9.3.1. SETUP FOR CALIBRATION USING VALVE OPTIONS
Each of the various calibration valve options requires a different pneumatic setup that is dependent on the exact
nature and number of valves present.

Figure 9-3:

Figure 9-4:

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Pneumatic Connections – Option 50B: Zero/Pressurized Span Calibration Valves

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Figure 9-5:

Pneumatic Connections – Option 51B: Zero/Span Calibration Valves

Figure 9-6:

Pneumatic Connections – Option 51C: Zero/Span Calibration Valves

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9.3.2. MANUAL CALIBRATION CHECKS WITH VALVE OPTIONS
INSTALLED

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9.3.3. MANUAL CALIBRATION USING VALVE OPTIONS
The following section describes the basic method for manually calibrating the M300E/EM Analyzer.
If the analyzer’s reporting range is set for the DUAL or AUTO range modes, a step will appear for selecting
which range is to be calibrated (LOW or HIGH).
Each of these two ranges MUST be calibrated separately.

9.3.3.1. Setting the Expected Span Gas Concentration
NOTE
When setting expected concentration values, consider impurities in your span gas.
The expected CO span gas concentration should be 80% of the reporting range of the instrument (see Section
6.6.1). The default factory setting is 40 ppm.
To set the span gas concentration, press:

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9.3.3.2. Zero/Span Point Calibration Procedure
The zero and cal operations are initiated directly and independently with dedicated keys (CALZ & CALS).

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9.3.3.3. Use of Zero/Span Valve with Remote Contact Closure
Contact closures for controlling calibration and calibration checks are located on the rear panel CONTROL IN
connector. Instructions for setup and use of these contacts can be found in Section 3.3.4.
When the appropriate contacts are closed for at least 5 seconds, the instrument switches into zero, or span
calibration mode and any internal zero/span valves installed will be automatically switched to the appropriate
configuration.
 The remote calibration contact closures may be activated in any order.
 It is recommended that contact closures remain closed for at least 10 minutes to establish a reliable
reading.
 The instrument will stay in the selected mode for as long as the contacts remain closed.
If contact closures are being used in conjunction with the analyzer’s AutoCal (see Section 9.4) feature and the
AutoCal attribute “CALIBRATE” is enabled, the M300E/EM will not recalibrate the analyzer until the contact is
opened. At this point, the new calibration values will be recorded before the instrument returns to Sample Mode.
If the AutoCal attribute “CALIBRATE” is disabled, the instrument will return to Sample Mode, leaving the
instrument’s internal calibration variables unchanged.

9.4. AUTOMATIC ZERO/SPAN CAL/CHECK (AUTOCAL)
The AutoCal system allows unattended periodic operation of the ZERO/SPAN valve options by using the
M300E/EM Analyzer’s internal time of day clock. AutoCal operates by executing SEQUENCES programmed by
the user to initiate the various calibration modes of the analyzer and open and close valves appropriately. It is
possible to program and run up to three separate sequences (SEQ1, SEQ2 and SEQ3). Each sequence can
operate in one of three modes, or be disabled.
Table 9-2:
MODE NAME
DISABLED
ZERO
ZERO-SPAN
SPAN

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AUTOCAL Modes
ACTION

Disables the Sequence.
Causes the Sequence to perform a Zero calibration/check.
Causes the Sequence to perform a Zero point calibration/check followed by a Span
point calibration/check.
Causes the Sequence to perform a Span concentration calibration/check only.

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For each mode, there are seven parameters that control operational details of the SEQUENCE (see Table 9-3).
Table 9-3:

AutoCal Attribute Setup Parameters

ATTRIBUTE

ACTION

TIMER ENABLED

Turns on the Sequence timer.

STARTING DATE

Sequence will operate after Starting Date.

STARTING TIME

Time of day sequence will run.

DELTA DAYS

Number of days to skip between each Sequence execution.
 If set to 7, for example, the AutoCal feature will be enabled once every
week on the same day.

DELTA TIME

Number of hours later each “Delta Days” Seq is to be run.
 If set to 0, the sequence will start at the same time each day. Delta
Time is added to Delta Days for the total time between cycles.
 This parameter prevents the analyzer from being calibrated at the same
daytime of each calibration day and prevents a lack of data for one
particular daytime on the days of calibration.

DURATION

Number of minutes the sequence operates.
 This parameter needs to be set such that there is enough time for the
concentration signal to stabilize.
 The STB parameter shows if the analyzer response is stable at the end
of the calibration.
 This parameter is logged with calibration values in the iDAS.

CALIBRATE

Enable to do a calibration – Disable to do a cal check only.
 This setting must be OFF for analyzers used in US EPA applications and
with internal span gas generators installed and functioning.

RANGE TO CAL

LOW calibrates the low range, HIGH calibrates the high range. Applies only
to auto and remote range modes; this property is not available in single and
independent range modes.

NOTE
The CALIBRATE attribute (formerly called “dynamic calibration”) must always be set to OFF for
analyzers used in US EPA controlled applications that have internal span gas generators option
installed.
Calibration of instruments used in US EPA related applications should only be performed using external
sources of zero air and span gas with an accuracy traceable to EPA or NIST standards and supplied
through the analyzer’s sample port.

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The following example sets sequence #2 to do a zero-span calibration every other day starting at 2:15 PM on
September 4, 2008, lasting 15 minutes, without calibration. This will start ½ hour later each iteration.
Table 9-4:

Example AutoCal Sequence

MODE AND
ATTRIBUTE

VALUE

COMMENT

SEQUENCE

Define Sequence #2

MODE

ZERO-SPAN

Select Zero and
Span Mode

TIMER ENABLE

Enable the timer

STARTING DATE

Sept. 4, 2008

Start after
Sept 4, 2008

STARTING TIME

14:15

First Span starts at
2:15 PM

DELTA DAYS

Do Sequence #2
every other day

DELTA TIME

00:30

Do Sequence #2 ½
hr later each day

DURATION

30.0

Operate Span valve
for 15 min

CALIBRATE

Calibrate at end of
Sequence

NOTE
The programmed STARTING_TIME must be a minimum of 5 minutes later than the real time clock for
setting real time clock (See Section 6.5.4).
Avoid setting two or more sequences at the same time of the day. Any new sequence that is initiated
whether from a timer, the COM ports or the contact closure inputs will override any sequence that is in
progress.

NOTE
With CALIBRATE turned ON, the state of the internal setup variables DYN_SPAN and DYN_ZERO is set
to ON and the instrument will reset the slope and offset values for the CO response each time the
AutoCal program runs.
This continuous readjustment of calibration parameters can often mask subtle fault conditions in the
analyzer. It is recommended that, if CALIBRATE is enabled, the analyzer’s test functions, slope and
offset values be checked frequently to assure high quality and accurate data from the instrument.

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9.4.1. SETUP  ACAL: PROGRAMMING AND AUTO CAL SEQUENCE
NOTE
If at any time an illegal entry is selected, (for example: Delta Days > 366) the ENTR key will disappear
from the display.
To program the example sequence shown in Table 9-4, press:
SAMPLE

RANGE = 50.0 PPM

CO=XX.XX

< TST TST > CAL CALZ CZLS

SETUP

SETUP X.X
CFG ACAL DAS RNGE PASS CLK MORE EXIT

SETUP X.X

SEQ 1) DISABLED

NEXT MODE

SETUP X.X

EXIT

SEQ 2) DISABLED

PREV NEXT MODE

SETUP X.X

EXIT

MODE: DISABLED

SETUP X.X

ENTR EXIT

MODE: ZERO

PREV NEXT

SETUP X.X

ENTR EXIT

MODE: ZERO–SPAN

PREV NEXT

SETUP X.X

ENTR EXIT

SEQ 2) ZERO–SPAN, 1:00:00

PREV NEXT MODE SET

SETUP X.X

EXIT

TIMER ENABLE: ON

SET> EDIT

SETUP X.X

EXIT

STARTING DATE: 01–JAN–07

EDIT

SETUP X.X
0

EXIT

STARTING DATE: 01–JAN–02
SEP

ENTR

EXIT

Toggle keys to set
Day, Month & Year:
Format : DD-MON-YY

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With STARTING TIME

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CONTINUED FROM PREVIOUS PAGE STARTING DATE

SETUP X.X

STARTING DATE: 04–SEP–08

EDIT

SETUP X.X

EXIT

STARTING TIME:00:00

EDIT
Toggle keys to set
time:
Format : HH:MM
This is a 24 hr clock . PM
hours are 13 – 24.
Example 2:15 PM = 14:15

SETUP X.X
1

EXIT

STARTING TIME:00:00

SETUP X.X

ENTR

STARTING TIME:14:15

EDIT

SETUP X.X

EXIT

DELTA DAYS: 1

EDIT

Toggle keys to set
number of days between
procedures (1-365).

SETUP X.X
0

EXIT

DELTA DAYS: 1
2

SETUP X.X

ENTR

SETUP X.X

EXIT

DELTA TIME00:00

EDIT

SETUP X.X
0

EXIT

DELTA TIME: 00:00
:3

SETUP X.X

EXIT

DELTA DAYS:2

EDIT

Toggle keys to set
delay time for each
iteration of the sequence:
HH:MM
(0 – 24:00)

EXIT

ENTR

EXIT

DELTA TIME:00:30

EDIT

EXIT

CONTINUE NEXT PAGE
With DURATION TIME

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CONTINUED FROM PREVIOUS PAGE
DELTA TIME

SETUP X.X

DURATION:15.0 MINUTES

EDIT

Toggle keys to set
duration for each iteration
of the sequence:
Set in Decimal minutes
from 0.1 – 60.0.

SETUP X.X
3

SETUP X.X

EXIT

DURATION 15.0MINUTES
.0

ENTR

DURATION:30.0 MINUTES

EDIT

SETUP X.X

EXIT

CALIBRATE: OFF

EDIT

SETUP X.X

Toggle key
Between Off and
ON.

EXIT

CALIBRATE: OFF

SETUP X.X

ENTR

EXIT

CALIBRATE: ON

EDIT

Display show:

EXIT

SEQ 2) ZERO–SPAN, 2:00:30
Sequence
MODE

SETUP X.X

Delta Time
Delta Days

SEQ 2) ZERO–SPAN, 2:00:30

PREV NEXT MODE SET

EXIT

EXIT returns
to the SETUP
Menu.

9.4.1.1. AutoCal with Auto or Dual Reporting Ranges Modes Selected
If the M300E/EM Analyzer is set for either the Dual or Auto reporting range modes, the following three steps will
appear at the beginning of the AutoCal setup routine:
SETUP X.X
CAL

SETUP X.X

SETUP

PRIMARY SETUP MENU

CFG DAS RNGE PASS CLK MORE

SETUP X.X

EXIT

SECONDARY SETUP MENU

COMM VARS DIAG

SETUP X.X
8

DIAG

EXIT

ENTER PASSWORD

ENTR

EXIT

ENTR

EXIT

SIGNAL I/O

PREV NEXT

Continue pressing NEXT until ...

DIAG OPTIC

DARK CALIBRATION

PREV NEXT

DIAG DARK
VIEW

ENTR

EXIT

CO DARK CALIBRATION

CAL

EXIT
Calibration runs automatically

Offset for CO REF signal

DIAG DARK

REF DARK OFFSET: 0.0mV

DIAG DARK
EXIT

DARK CAL 1% COMPLETE
EXIT

Offset for CO MEAS signal

DIAG DARK

MEAS DARK OFFSET: 0.0mV
EXIT

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EXIT

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9.6.2. PRESSURE CALIBRATION
A sensor at the exit of the sample chamber continuously measures the pressure of the sample gas. This data is
used to compensate the final CO concentration calculation for changes in atmospheric pressure and is stored in
the CPU’s memory as the test function PRES (also viewable via the front panel).
NOTE
This calibration must be performed when the pressure of the sample gas is equal to ambient
atmospheric pressure.
Before performing the following pressure calibration procedure, disconnect the sample gas pump and
the sample gas-line vent from the sample gas inlet on the instrument’s rear panel.
To cause the analyzer to measure and record a value for PRES, press.

SETUP X.X
CFG DAS RNGE PASS CLK

EXIT

SETUP X.X
COMM VARS

EXIT

SETUP X.X
EXIT

ENTR

Continue pressing

until ...

DIAG
PREV NEXT

DIAG

EXIT

PCAL
EXIT

DIAG

206

discards the
new setting.
accepts the
new setting.

PCAL

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9.6.3. FLOW CALIBRATION
The flow calibration allows the user to adjust the values of the sample flow rates as they are displayed on the
front panel and reported through COMM ports to match the actual flow rate measured at the sample inlet. This
does not change the hardware measurement of the flow sensors, only the software-calculated values.
To carry out this adjustment, connect an external, sufficiently accurate flow meter to the sample inlet (see
Section 12.3.4 for more details). Once the flow meter is attached and is measuring actual gas flow, press:

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9.6.4. ELECTRICAL TEST CALIBRATION
To run the Electrical Test, see Section 13.5.6.2. For Electrical Test calibration the 929 password must be used:

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9.7. CALIBRATION OF OPTIONAL SENSORS
9.7.1. O2 SENSOR CALIBRATION PROCEDURE
9.7.1.1. O2 Calibration Setup
The pneumatic connections for calibrating are as follows:

Figure 9-7:

O2 Sensor Calibration Set Up

O2 SENSOR ZERO GAS: Teledyne API recommends using pure N2 when calibration the zero point of your O2
sensor option.
O2 SENSOR SPAN GAS: Teledyne API recommends using 20.8% O2 in N2 when calibration the span point of
your O2 sensor option (See Table 3-7).

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9.7.1.2. Set O2 Span Gas Concentration
Set the expected O2 span gas concentration.
This should be equal to the percent concentration of the O2 span gas of the selected reporting range (default
factory setting = 20.8%; the approximate O2 content of ambient air).

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9.7.1.3. Activate O2 Sensor Stability Function
To change the stability test function from CO concentration to the O2 sensor output, press:

NOTE
Use the same procedure to reset the STB test function to CO when the O2 calibration procedure is
complete.

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9.7.1.4. O2ZERO/SPAN CALIBRATION
To perform the zero/span calibration procedure:

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9.7.2. CO2 SENSOR CALIBRATION PROCEDURE
9.7.2.1. CO2 Calibration Setup
The pneumatic connections for calibrating are as follows

Figure 9-8:

CO2 Sensor Calibration Set Up

CO2 SENSOR ZERO GAS: Teledyne API recommends using pure N2 when calibration the zero point of your
CO2 sensor option.
CO2 SENSOR SPAN GAS: Teledyne API recommends using 16% CO2 in N2 when calibration the span point of
your CO2 sensor option (Table 3-7) is 20%.

9.7.2.2. Set CO2 Span Gas Concentration:
Set the expected CO2 span gas concentration.
This should be equal to the percent concentration of the CO2 span gas of the selected reporting range (default
factory setting = 12%).

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9.7.2.3. Activate CO2 Sensor Stability Function
To change the stability test function from CO concentration to the CO2 sensor output, press:

NOTE
Use the same procedure to reset the STB test function to CO when the CO2 calibration procedure is
complete.

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9.7.2.4. CO2 Zero/Span Calibration
To perform the zero/span calibration procedure:

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10. EPA CALIBRATION PROTOCOL
10.1. CALIBRATION REQUIREMENTS
If the M300E is to be used for EPA SLAMS monitoring, it must be calibrated in accordance with the instructions
in this section.
The USEPA strongly recommends that you obtain a copy of the publication Quality Assurance Handbook for Air
Pollution Measurement Systems Volume 2: Part 1, Ambient (abbreviated, Q.A. Handbook Volume II). This
manual can be purchased from:
 USEPA Order Number: EPA454R98004; or NTIS Order Number: PB99 129876.
 National Technical Information Service (phone 800-553-6847) or Center for Environmental Research
Information or the U.S. Government Printing Office at http://www.gpo.gov. The Handbook can also be
located on line by searching for the title at http://www.epa.gov.
 Special attention should be paid to Section 2.6 of that which covers CO analyzers of this type.
Specific regulations regarding the use and operation of ambient CO analyzers can be found in
Reference 1 at the end of this Section.
A bibliography and references relating to CO monitoring are listed in Section 10.6.

10.1.1. CALIBRATION OF EQUIPMENT - GENERAL GUIDELINES
In general, calibration is the process of adjusting the gain and offset of the M300E against some recognized
standard. In this section the term dynamic calibration is used to express a multipoint check against known
standards and involves introducing gas samples of known concentration into the instrument in order to adjust the
instrument to a predetermined sensitivity and to produce a calibration relationship.
This relationship is derived from the instrumental response to successive samples of different known
concentrations. As a minimum, three reference points and a zero point are recommended to define this
relationship.
All monitoring instrument systems are subject to some drift and variation in internal parameters and cannot be
expected to maintain accurate calibration over long periods of time. Therefore, it is necessary to dynamically
check the calibration relationship on a predetermined schedule. Zero and span checks must be used to
document that the data remains within control limits. These checks are also used in data reduction and
validation.
Calibration can be done by either diluting high concentration CO standards with zero air or using individual tanks
of known concentration. Details of documentation, forms and procedures should be maintained with each
analyzer and also in a central backup file as described in Section 2.6.2 of the Quality Assurance Handbook.
The reliability and usefulness of all data derived from any analyzer depends primarily upon its state of calibration.
To ensure accurate measurements of the CO levels:
1. The analyzer must be calibrated at the time of installation and recalibrated as necessary.
2. In order to insure that high quality, accurate measurement information is obtained at all times, the
analyzer must be calibrated prior to use.
3. Calibrations should be carried out at the field-monitoring site.
4. The analyzer should be in operation for at least several hours (preferably overnight) before calibration
so that it is fully warmed up and its operation has stabilized.

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5. If the instrument will be used on more than one range, it should be calibrated separately on each
applicable range.
6. Calibration documentation should be maintained with each analyzer and also in a central backup file.
7. The true values of the calibration gases used must be traceable to NIST-SRMs See Table 3-7.

10.1.2. CALIBRATION EQUIPMENT, SUPPLIES, AND EXPENDABLES
The measurement of CO in ambient air requires a certain amount of basic sampling equipment and
supplemental supplies. The Quality Assurance Handbook Section 2.6 contains information about setting up the
appropriate systems.

10.1.2.1. Data Recording Device
Either a strip chart recorder, data acquisition system, digital data acquisition system should be used to record the
data from the Mode; M300E RS-232 port or analog outputs. If analog readings are being used, the response of
that system should be checked against a NIST referenced voltage source or meter. Data recording device
should be capable of bi-polar operation so that negative readings can be recorded.

10.1.2.2. Spare Parts and Expendable Supplies
In addition to the basic equipment described in the Q.A. Handbook, it is necessary to maintain an inventory of
spare parts and expendable supplies. Section Error! Reference source not found. describes the parts that
require periodic replacement and the frequency of replacement. Appendix B of this Technical Manual contains a
list of spare parts and kits of expendables supplies.

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Table 10-1: Matrix for Calibration Equipment & Supplies
EQUIPMENT &
SUPPLIES

SPECIFICATION

Recorder

Compatible with output
signal of analyzer; min.
chart width of 150 mm (6 in)
is recommended

Sample line and
manifold

Constructed of PTFE or
glass

Calibration equipment

REFERENCE

ACTION IF
REQUIREMENTS ARE NOT
MET
Return equipment to supplier

Check upon receipt

Q.A. Handbook1 Vol II Part 1 , App 15,
Sec. 4.4 & 5.4

Return equipment to supplier
Return equipment/ supplies
to supplier or take corrective
action
Instruments designated as
reference or equivalent have
been determined to meet
these acceptance criteria.

Detection limit

Noise = 0.5 ppm
Lower detectable
limit=1.0 ppm

Working standard CO
cylinder gas

Traceable to NIST-SRM

Analyzed against NIST-SRM;
40 CFR, Pt 50, App C; para.
3.13

Obtain new working
standard and check for
traceability

Zero air

Clean dry ambient air, free
of contaminants that cause
detectable response with
the CO analyzer.

40 CFR, Pt 50, App C; para.
3.23

Obtain air from another
source or regenerate.

Record form
Audit equipment

40 CFR, Pt 53.20 & 232

Q.A. Handbook1 Vol II Part 1 , App 15,
Table A-5 & A-6
Must not be the same as
used for calibration

Q.A. Handbook1 Vol II Part 1 ,
App 15,
Sec. 4.4 & 5.4

Revise forms as appropriate
Locate problem and correct
or return to supplier

10.1.3. RECOMMENDED STANDARDS FOR ESTABLISHING TRACEABILITY
To assure data of desired quality, two considerations are essential:
 The measurement process must be in statistical control at the time of the measurement.
 The systematic errors, when combined with the random variation in the measurement process, must result
in a suitably small uncertainty.
Evidence of good quality data includes documentation of the quality control checks and the independent audits
of the measurement process by recording data on specific forms or on a quality control chart and by using
materials, instruments, and measurement procedures that can be traced to appropriate standards of reference.
To establish traceability, data must be obtained routinely by repeat measurements of standard reference
samples (primary, secondary and/or working standards). More specifically, working calibration standards must
be traceable to standards of higher accuracy, such as those listed in Table 3-7.
Cylinders of working gas traceable to NIST-SRMs (called EPA Protocol Calibration Gas) are also commercially
available (from sources such as Scott Specialty Gases, etc.). See Table 3-7 for a list of appropriate SRMs.

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10.1.4. CALIBRATION FREQUENCY
To ensure accurate measurements of the CO concentrations, calibrate the analyzer at the time of installation,
and recalibrate it:
 No later than three months after the most recent calibration or performance audit which indicate the
analyzer’s calibration to be acceptable.
 When there is an interruption of more than a few days in analyzer operation.
 When any repairs have taken place which might affect its calibration.
 After a physical relocation of the analyzer.
 When any other indication (including excessive zero or span drift) of possible significant inaccuracy of the
analyzer exists.
Following any of the activities listed above, the zero and span should be checked to determine if a calibration is
necessary.
Table 10-2: Activity Matrix for Quality Assurance Checks
Characteristic

Acceptance limits

Frequency and method of
measurement

Action if requirements are not met

Shelter temperature

Mean temperature between
Check thermograph chart
22oC and 28oC (72o and 82oF),
weekly for variations greater
daily fluctuations not greater
than ±2oC (4oF)
o
than ±2 C

Mark strip chart for the affected time
period
Repair or adjust temperature control

Sample introduction
system

No moisture, foreign material,
leaks, obstructions; sample line Weekly visual inspection
connected to manifold

Clean, repair, or replace as needed

Recorder

Adequate ink & paper
Legible ink traces
Correct chart speed and range
Correct time

Weekly visual inspection

Replenish ink and paper supply
Adjust time to agree with clock; note on
chart

Analyzer operational
settings

TEST measurements at
nominal values
2. M300E in Sample Mode

Weekly visual inspection

Adjust or repair as needed

Analyzer operational
check

Zero and span within tolerance
limits as described in
Subsection 9.1.3 of Sec. 2.0.9
(Q.A. Handbook Vol II4)

Level 1 zero/span every 2
Find source of error and repair
weeks; Level 2 between Level
1 checks at frequency desired After corrective action, re-calibrate
analyzer
analyzer by user

Precision check

Assess precision as described
in Sec. 2.0.8 and Subsection
3.4.3 (Ibid.)

Every 2 weeks, Subsection
3.4.3 (Ibid.)

Calc, report precision, Sec. 2.0.8 (Ibid.)

10.1.5. LEVEL 1 CALIBRATIONS VERSUS LEVEL 2 CHECKS
Essential to quality assurance are scheduled checks for verifying the operational status of the monitoring system.
The operator should visit the site at least once each week. It is recommended Level 1 zero and span check
conducted on the analyzer every two weeks. Level 2 zero and span checks should be conducted at a frequency
desired by the user. Definitions of these terms are given in Error! Reference source not found..
To provide for documentation and accountability of activities, a checklist should be compiled and then filled out
by the field operator as each activity is completed.

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Table 10-3: Definition of Level 1 and Level 2 Zero and Span Checks
(Q.A. Handbook1 Vol II, Part1, Section 12.3 & 12.4)
LEVEL 1 ZERO AND SPAN CALIBRATION

LEVEL 2 ZERO AND SPAN CHECK

A Level 1 zero and span calibration is a simplified, twopoint analyzer calibration used when analyzer linearity
does not need to be checked or verified. (Sometimes
when no adjustments are made to the analyzer, the
Level 1 calibration may be called a zero/span check, in
which case it must not be confused with a Level 2
zero/span check.) Since most analyzers have a reliably
linear or near-linear output response with concentration,
they can be adequately calibrated with only two
concentration standards (two-point concentration).
Furthermore, one of the standards may be zero
concentration, which is relatively easily obtained and
need not be certified. Hence, only one certified
concentration standard is needed for the two-point (Level
1) zero and span calibration. Although lacking the
advantages of the multipoint calibration, the two-point
zero and span calibration--because of its simplicity--can
be (and should be) carried out much more frequently.
Also, two-point calibrations are easily automated.
Frequency checks or updating of the calibration
relationship with a two-point zero and span calibration
improves the quality of the monitoring data by helping to
keep the calibration relationship more closely matched to
any changes (drifts) in the analyzer response.

A Level 2 zero and span check is an "unofficial" check of
an analyzer's response. It may include dynamic checks
made with uncertified test concentrations, artificial
stimulation of the analyzer's detector, electronic or other
types of checks of a portion of the analyzer, etc.
Level 2 zero and span checks are not to be used as a
basis for analyzer zero or span adjustments, calibration
updates, or adjustment of ambient data. They are
intended as quick, convenient checks to be used
between zero and span calibrations to check for possible
analyzer malfunction or calibration drift. Whenever a
Level 2 zero or span check indicates a possible
calibration problem, a Level 1 zero and span (or
multipoint) calibration should be carried out before any
corrective action is taken.
If a Level 2 zero and span check is to be used in the
quality control program, a "reference response" for the
check should be obtained immediately following a zero
and span (or multipoint) calibration while the analyzer's
calibration is accurately known. Subsequent Level 2
check responses should then be compared to the most
recent reference response to determine if a change in
response has occurred. For automatic Level 2 zero and
span checks, the first scheduled check following the
calibration should be used for the reference response. It
should be kept in mind that any Level 2 check that
involves only part of the analyzer's system cannot
provide information about the portions of the system not
checked and therefore cannot be used as a verification
of the overall analyzer calibration.

10.2. ZERO AND SPAN CHECKS
A system of Level 1 and Level 2 zero span checks is recommended. These checks must be conducted in
accordance with the specific guidance given in Section 12 of the QA Handbook Vol II Part 11. It is recommended
that Level 1 zero and span checks be conducted every two weeks. Level 2 checks should be conducted in
between the Level 1 checks at a frequency desired by the user. Span concentrations for both levels should be
between 70 and 90% of the measurement range.
Zero and span data are to be used to:
1. Provide data to allow analyzer adjustment for zero and span drift;
2. Provide a decision point on when to calibrate the analyzer;
3. Provide a decision point on invalidation of monitoring data.
Items 1 and 2 are described in detail in Subsection 9.1.3 of Section 2.0.9 (Q.A. Handbook Vol II4). Item 3 is
described in Subsection 9.1.4 of the same section.

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Refer to the Troubleshooting and Repair (see Section 13) of this manual if the instrument is not within the
allowed variations.

10.2.1. ZERO/SPAN CHECK PROCEDURES
The Zero and Span calibration can be checked in a variety of different ways. They include:
 Manual Zero/Span Check - Zero and Span can be checked from the front panel keyboard. The procedure
is in Section 9.3 of this manual.
 Automatic Zero/Span Checks - After the appropriate setup, Z/S checks can be performed automatically
every night. See Section 9.3 of this manual for setup and operation procedures.
If using the AutoCal feature to perform a calibration check, set the CALIBRATE parameter to NO.
 Zero/Span checks via remote contact closure = Zero/Span checks can be initiated via remote contact
closures on the rear panel. See Section 9.3.3.3 of this manual.
 Zero/Span via RS-232 port - Z/S checks can be controlled via the RS-232 port. See Section 9.3.3.3 and
Appendix A-6 of this manual for more details.

10.2.2. PRECISION CHECK
A periodic check is used to assess the data for precision. A one-point precision check must be carried out at
least once every 2 weeks on each analyzer at a CO concentration between 8.0 ppm and 10.0 ppm.
The analyzer must be operated in its normal sampling mode, and the precision test gas must pass through all
filters, scrubbers, conditioners, and other components used during normal ambient sampling.
The standards from which precision check test concentrations are obtained must be traceable to NIST-SRM.
Those standards used for calibration or auditing may be used.
To perform a precision check during the instrument set up, the sources of zero air and sample gas and
procedures should conform to those described in Section Error! Reference source not found. for analyzers
with no valve options or with an IZS valve option installed and Section 9.3.1 for analyzers with Z/S options
installed with the following exception:
 Connect the analyzer to a precision gas that has a CO concentration between 8.0 ppm and 10.0 ppm. If a
precision check is made in conjunction with a zero/span check, it must be made prior to any zero or span
adjustments.
 Record this value.
Information from the check procedure is used to assess the precision of the monitoring data; see CFR 40 CFR
585 for procedures for calculating and reporting precision.

10.3. PRECISIONS CALIBRATION
Calibration must be performed with a calibrator that meets all conditions specified in QA Handbook1 Vol II Part 1,
App 15, Sec. 4.4 & 5.4. The user should be sure that all flow meters are calibrated under the conditions of use
against a reliable standard. All volumetric flow rates should be corrected to 25oC (77oF) and 760 mm-Hg
(29.92in–Hg). Make sure the calibration system can supply the range of the concentration at a sufficient flow
over the whole range of concentration that will be encountered during calibration.
All operational adjustments to the M300E should be completed prior to the calibration. The following software
features must be set into the desired state before calibration.
 If the instrument will be used for more than one range, it should be calibrated separately on each
applicable range.
 Automatic temperature/pressure compensation should be enabled. See Section 6.6.
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 Alternate units, make sure ppm units are selected for EPA monitoring. See Section 6.6.4.
The analyzer should be calibrated on the same range used for monitoring.

10.3.1. PRECISION CALIBRATION PROCEDURES
To perform a precision calibration during the instrument set up, the input sources of zero air and sample gas and
procedures should conform to those described in Section Error! Reference source not found. for analyzers
with no valve options or with an IZS valve option installed and Section 9.3 for analyzers with Z/S options
installed.

10.4. AUDITING PROCEDURE
An audit is an independent assessment of the accuracy of data. Independence is achieved by having the audit
made by an operator other than the one conducting the routine field measurements and by using audit standards
and equipment different from those routinely used in monitoring. The audit should be a true assessment of the
measurement process under normal operations without any special preparation or adjustment of the system.
Routine quality control checks conducted by the operator are necessary for obtaining and reporting good quality
data, but they are not considered part of the auditing procedure. Audits are recommended once per quarter, but
frequency may be determined by applicable regulations and end use of the data.
Refer to The Q.A. Handbook1 Volume II, Part 1 Section 16 (for a more detailed description).

10.4.1. CALIBRATION AUDIT
A calibration audit consists of challenging the M300E/EM with known concentrations of CO. The difference
between the known concentration and the analyzer response is obtained, and an estimate of the analyzer's
accuracy is determined.
The recommended audit schedule depends on the purpose for which the monitoring data are being collected.
For example, Appendix A, 40 CFR 585 requires that each analyzer in State and Local Air Monitoring Network
Plan (SLAMS) be audited at least once a year. Each agency must audit 25% of the reference or equivalent
analyzers each quarter. If an agency operates less than four reference or equivalent analyzers, it must randomly
select analyzers for reauditing so that one analyzer will be audited each calendar quarter and each analyzer will
be audited at least once a year.
Appendix B, 40 CFR 585 requires that each Prevention of Significant Deterioration (PSD) reference or equivalent
analyzer be audited at least once a sampling quarter. Results of these audits are used to estimate the accuracy
of ambient air data.

10.4.2. DATA REDUCTION AUDIT
A data reduction audit involves transcribing analyzer data and determining if the collected data is within the
control limits, generally 2 ppm between the analyzer response and the audit value. The resulting values are
recorded on the SAROAD form. If data exceeds 2 ppm, check all of the remaining data in the 2-week period.

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10.4.3. SYSTEM AUDIT/VALIDATION
A system audit is an on-site inspection and review of the quality assurance activities used for the total
measurement system (sample collection, sample analysis, data processing, etc.); it is an appraisal of system
quality.
Conduct a system audit at the startup of a new monitoring system and periodically (as appropriate) as significant
changes in system operations occur.

10.5. DYNAMIC MULTIPOINT CALIBRATION PROCEDURE
10.5.1. LINEARITY TEST
In order to record the instrument’s performance at a predetermined sensitivity and to derive a calibration
relationship, a minimum of three reference points and one zero point uniformly spaced covering 0 to 90 percent
of the operating range are recommended to define this relationship.
The analyzer's recorded response is compared with the known concentration to derive the calibration
relationship.
To perform a precision check during the instrument set up, the sources of zero air and sample gas should conform to
those described in Section 9.1.2.
Follow the procedures described in Section 9.3 for calibrating the zero points.
For each mid point:

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SAMPLE

A1:CONC1=50 PPM

< TST TST > CAL

SAMPLE

CO STB=XXXX PPB

< TST TST > CAL

CO = XXXX
SETUP

EPA Calibration Protocol

Set the Display to show the
COSTB test function.
This function calculates the
stability of the CO
measurement.

CO=XXXX
SETUP

ACTION:
Allow calibration gas diluted to proper concentration for
Midpoint N to enter the sample port

SAMPLE
Wait until
STABIL falls
below 0.2 PPM
(for M300E).
This may take
several minutes.

COSTB=XXXX PPB

< TST TST > CAL CALZ CALS

SPAN CAL M

A1:CONC1=50 PPM

< TST TST > ZERO SPAN CONC

CO=XXXX
SETUP

CO = XXXX
EXIT

Record the CO
reading as
displayed on the
instrument’s front
panel.

Press EXIT to
Return to the
Main SAMPLE
Display.
ACTION:
Allow Calibration Gas diluted to
proper concentration for
Midpoint N+1 to enter the sample
port.

Plot the analyzer responses versus the corresponding calculated concentrations to obtain a calibration
relationship. Determine the best-fit straight line (y = mx + b) determined by the method of least squares.
After the best-fit line has been drawn, determine whether the analyzer response is linear. To be considered
linear, no calibration point should differ from the best-fit line by more than 2% of full scale.
If carried out carefully, the checks described in this section will provide reasonable confidence that the M300E is
operating properly. Checks should be carried out at least every 3 months as the possibility of malfunction is
always present.
If the linearity error is excessive and cannot be attributed to outside causes, check the M300E system for:
 Sample pressure higher than ambient – pressurized sample gas
 Leaks
 Correct flow
 Miscalibrated span gas tanks or bad zero gas
 Miscalibrated sample pressure transducer
 Failed IR detector, GFC Wheel or Sync/Demod Board
 Contaminated optical bench or sample lines

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10.6. REFERENCES
1

Quality Assurance Handbook for Air Pollution Measurement Systems Volume II: Part 1 - Ambient Air Quality
Monitoring Program Quality System Development - EPA-454/R-98-004 - August 1998. United States
Environmental Protection Agency - Office of Air Quality Planning and Standards

CFR Title 40: Protection of Environment - PART 53—AMBIENT AIR MONITORING REFERENCE AND
EQUIVALENT METHODS:
- 53.20 General provisions.
- 53.23 Test procedures.

CFR Title 40: Protection of Environment - PART 50—NATIONAL PRIMARY AND SECONDARY AMBIENT
AIR QUALITY STANDARDS: Appendix C to Part 50—Measurement Principle and Calibration Procedure for
the Measurement of Carbon Monoxide in the Atmosphere (Non-Dispersive Infrared Photometry)

Quality Assurance Handbook for Air Pollution Measurement Systems - Volume II, Ambient Air Specific
Methods, EPA-600/4-77-027a, 1977.

CFR Title 40: Protection of Environment - AMBIENT AIR QUALITY SURVEILLANCE

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–
TECHNICAL INFORMATION

PART III

PART III
–
TECHNICAL INFORMATION

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11. THEORY OF OPERATION
The M300E/EM Gas Filter Correlation Carbon monoxide Analyzer is a microprocessor-controlled analyzer that
determines the concentration of carbon monoxide (CO) in a sample gas drawn through the instrument. It
requires that the sample and calibration gases be supplied at ambient atmospheric pressure in order to establish
a stable gas flow through the sample chamber where the gases ability to absorb infrared radiation is measured.
Calibration of the instrument is performed in software and does not require physical adjustments to the
instrument. During calibration, the microprocessor measures the current state of the IR Sensor output and
various other physical parameters of the instrument and stores them in memory.
The microprocessor uses these calibration values, the IR absorption measurements made on the sample gas
along with data regarding the current temperature and pressure of the gas to calculate a final CO concentration.
This concentration value and the original information from which it was calculated are stored in one of the unit’s
internal data acquisition system (iDAS - See Sections 7.1) as well as reported to the user via a vacuum
florescent display or a variety of digital and analog signal outputs.

11.1. MEASUREMENT METHOD
11.1.1. BEER’S LAW
The basic principle by which the analyzer works is called the Beer-Lambert Law or Beer’s Law. It defines how
light of a specific wavelength is absorbed by a particular gas molecule over a certain distance. The
mathematical relationship between these three parameters is:

I = Io e-αLc
Equation 11-1
Where:

Io is the intensity of the light if there was no absorption.
I is the intensity with absorption.
L is the absorption path, or the distance the light travels as it is being absorbed.
C is the concentration of the absorbing gas; in the case of the M300E/EM, Carbon Monoxide (CO).
α is the absorption coefficient that tells how well CO absorbs light at the specific wavelength of interest.
11.2. MEASUREMENT FUNDAMENTALS
In the most basic terms, the M300E/EM uses a high-energy heated element to generate a beam of broad-band
IR light with a known intensity (measured during instrument calibration). This beam is directed through
multi-pass cell filled with sample gas. The sample cell uses mirrors at each end to reflect the IR beam back and
forth through the sample gas a number of times (see Figure 11-1).
The total length that the reflected light travels is directly related to the intended sensitivity of the instrument. The
lower the concentrations the instrument is designed to detect, the longer the light path must be in order to create
detectable levels of attenuation.

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Lengthening the absorption path is accomplished partly by making the physical dimension of the reaction cell
longer, but primarily by adding extra passes back and forth along the length of the chamber.
Table 11-1: Absorption Path Lengths for M300E and M300EM
MODEL

TOTAL NUMBER OF
REFLECTIVE PASSES

DISTANCE BETWEEN MIRRORS

TOTAL
ABSORPTION LIGHT
PATH

M300E

437.5 mm

14 Meters

M300EM

312.5 mm

2.5 Meters

Band-Pass Filter
Sample Chamber

IR
Source

Photo-Detector

IR Beam

Figure 11-1:

Measurement Fundamentals

Upon exiting the sample cell, the beam shines through a band-pass filter that allows only light at a wavelength of
4.7 µm to pass. Finally, the beam strikes a solid-state photo-detector that converts the light signal into a
modulated voltage signal representing the attenuated intensity of the beam.

11.2.1. GAS FILTER CORRELATION
Unfortunately, water vapor absorbs light at 4.7 µm too. To overcome the interfering effects of water vapor the
M300E/EM adds another component to the IR light path called a Gas Filter Correlation (GFC) Wheel.

Measurement Cell
(Pure N2)

Reference Cell
(N2 with CO)

Figure 11-2:

230

GFC Wheel

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11.2.1.1. The GFC Wheel
A GFC Wheel is a metallic wheel into which two chambers are carved. The chambers are sealed on both sides
with material transparent to 4.7 µm IR radiation creating two airtight cavities. Each cavity is mainly filled with
composed gases. One cell is filled with pure N2 (the measurement cell). The other is filled with a combination of
N2 and a high concentration of CO (the reference cell).
IR unaffected by N2 in Measurement Cell
ΔH

IR is affected by CO in Reference Cell

IR
Source

Photo-Detector

GFC Wheel

Figure 11-3:

Measurement Fundamentals with GFC Wheel

As the GFC Wheel spins, the IR light alternately passes through the two cavities. When the beam is exposed to
the reference cell, the CO in the gas filter wheel strips the beam of most of the IR at 4.7μm. When the light
beam is exposed to the measurement cell, the N2 in the filter wheel does not absorb IR light. This causes a
fluctuation in the intensity of the IR light striking the photo-detector which results in the output of the detector
resembling a square wave.

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11.2.1.2. The Measure Reference Ratio
The M300E/EM determines the amount of CO in the sample chamber by computing the ratio between the peak
of the measurement pulse (CO MEAS) and the peak of the reference pulse (CO REF).
If no gases exist in the sample chamber that absorb light at 4.7μm, the high concentration of CO in the gas
mixture of the reference cell will attenuate the intensity of the IR beam by 60% giving a M/R ratio of
approximately 2.4:1.
Adding CO to the sample chamber causes the peaks corresponding to both cells to be attenuated by a further
percentage. Since the intensity of the light passing through the measurement cell is greater, the effect of this
additional attenuation is greater. This causes CO MEAS to be more sensitive to the presence of CO in the
sample chamber than CO REF and the ratio between them (M/R) to move closer to 1:1 as the concentration of
CO in the sample chamber increases.
IR unaffected by N2 in Measurement Cell of
the GDC Wheel and no additional CO in the
Sample Chamber

CO MEAS

CO REF

IR affected by CO in Reference Cell
with no interfering gas in the
Sample Chamber

IR shinning through Measurement Cell of
the GDC Wheel is reduced by additional CO
in the Sample Chamber

M/R
is reduced

IR shining through Reference Cell is
also reduced by additional CO in the
Sample Chamber, but to a lesser extent

Figure 11-4:

Effect of CO in the Sample on CO MEAS & CO REF

Once the M300E/EM has computed this ratio, a look-up table is used, with interpolation, to linearize the response
of the instrument. This linearized concentration value is combined with calibration SLOPE and OFFSET values
to produce the CO concentration which is then normalized for changes in sample pressure.

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Interference and Signal to Noise Rejection:
If an interfering gas, such as H2O vapor is introduced into the sample chamber, the spectrum of the IR beam is
changed in a way that is identical for both the reference and the measurement cells, but without changing the
ratio between the peak heights of CO MEAS and CO REF. In effect, the difference between the peak heights
remains the same.

M/R
is Shifted

IR shining through both cells is
affected equally by interfering
gas in the Sample Chamber

Figure 11-5:

Effects of Interfering Gas on CO MEAS & CO REF

Thus, the difference in the peak heights and the resulting M/R ratio is only due to CO and not to interfering
gases. In this case, GFC rejects the effects of interfering gases and so that the analyzer responds only to the
presence of CO.
To improve the signal-to-noise performance of the IR photo-detector, the GFC Wheel also incorporates an
optical mask that chops the IR beam into alternating pulses of light and dark at six times the frequency of the
measure/reference signal. This limits the detection bandwidth helping to reject interfering signals from outside
this bandwidth improving the signal to noise ratio.
The IR Signal as the PhotoDetector sees it after being
chopped by the GFC Wheel
S

CO MEAS

CO REF

Figure 11-6:

Chopped IR Signal

11.2.1.3. Summary Interference Rejection
The basic design of the M300E/EM rejects most of this interference at a 300:1 ratio. The two primary methods
used to accomplish this are:
 The 4.7μm band pass filter just before the IR sensor which allows the instrument to only react to IR
absorption in the wavelength affected by CO.
 Comparison of the measure and reference signals and extraction of the ratio between them.

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11.3. PNEUMATIC OPERATION
CAUTION
GENERAL SAFETY HAZARD
It is important that the sample airflow system is both leak tight and not pressurized
over ambient pressure.
Regular leak checks should be performed on the analyzer as described in the
maintenance schedule, Table 12-1.
Procedures for correctly performing leak checks can be found in Section 12.3.3.
An internal pump evacuates the sample chamber creating a small vacuum that draws sample gas into the
analyzer. Normally the analyzer is operated with its inlet near ambient pressure either because the sample is
directly drawn at the inlet or a small vent is installed at the inlet. There are several advantages to this “pull
through” configuration.
 By placing the pump down stream from the sample chamber several problems are avoided.
 First the pumping process heats and compresses the sample air complicating the measurement process.
 Additionally, certain physical parts of the pump itself are made of materials that might chemically react with
the sample gas.
 Finally, in certain applications where the concentration of the target gas might be high enough to be
hazardous, maintaining a negative gas pressure relative to ambient means that should a minor leak occur,
no sample gas will be pumped into the atmosphere surrounding analyzer.
INSTRUMENT CHASSIS
GFC Motor Heat Sync
GFC Wheel
Housing

SAMPLE
PRESSURE
SENSOR
FLOW
SENSOR

Sample Gas
Flow Control

Figure 11-7:

234

Internal Pneumatic Flow – Basic Configuration

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Theory of Operation

11.4. FLOW RATE CONTROL
To maintain a constant flow rate of the sample gas through the instrument, the M300E/EM uses a special flow
control assembly located in the exhaust gas line just before the pump. In instruments with the O2 sensor
installed, a second flow control assembly is located between the O2 sensor assembly and the pump. These
assemblies consist of:
 A critical flow orifice.
 Two o-rings: Located just before and after the critical flow orifice, the o-rings seal the gap between the
walls of assembly housing and the critical flow orifice.
 A spring: Applies mechanical force needed to form the seal between the o-rings, the critical flow orifice and
the assembly housing.

11.4.1.1. Critical Flow Orifice
The most important component of this flow control assembly is the critical flow orifice.
Critical flow orifices are a remarkably simple way to regulate stable gas flow rates. They operate without moving
parts by taking advantage of the laws of fluid dynamics. By restricting the flow of gas though the orifice, a
pressure differential is created. This pressure differential combined with the action of the analyzer’s pump draws
the gas through the orifice.
As the pressure on the downstream side of the orifice (the pump side) continues to drop, the speed that the gas
flows through the orifice continues to rise. Once the ratio of upstream pressure to downstream pressure is
greater than 2:1, the velocity of the gas through the orifice reaches the speed of sound. As long as that ratio
stays at least 2:1, the gas flow rate is unaffected by any fluctuations, surges, or changes in downstream pressure
because such variations only travel at the speed of sound themselves and are therefore cancelled out by the
sonic shockwave at the downstream exit of the critical flow orifice.

CRITICAL
FLOW
ORIFICE
AREA OF
LOW
PRESSURE

AREA OF
HIGH
PRESSURE

Sonic
Shockwave

SPRING

Figure 11-8:

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Flow Control Assembly & Critical Flow Orifice

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The actual flow rate of gas through the orifice (volume of gas per unit of time), depends on the size and shape of
the aperture in the orifice. The larger the hole, the more the gas molecules move at the speed of sound and
pass through the orifice. Because the flow rate of gas through the orifice is only related to the minimum 2:1
pressure differential and not absolute pressure, the flow rate of the gas is also unaffected by degradations in
pump efficiency due to age.
The critical flow orifice used in the M300E/EM is designed to provide a flow rate of 800 cc/min.

11.4.2. PARTICULATE FILTER
The M300E/EM Analyzer comes equipped with a 47 mm diameter, Teflon, particulate filter with a 5 micron pore
size. The filter is accessible through the front panel, which folds down to allow access, and should be changed
according to the suggested maintenance schedule described in Table 12-1.

11.4.3. PNEUMATIC SENSORS
11.4.3.1. Sample Pressure Sensor
An absolute value pressure transducer plumbed to the outlet of the sample chamber is used to measure sample
pressure. The output of the sensor is used to compensate the concentration measurement for changes in air
pressure. This sensor is mounted to a printed circuit board with the Sample Flow Sensor on the sample
chamber (see Section 11.4.3.2 and Figure 3-4

11.4.3.2. Sample Flow Sensor
A thermal-mass flow sensor is used to measure the sample flow through the analyzer. The sensor is calibrated
at the factory with ambient air or N2, but can be calibrated to operate with samples consisting of other gases
such as CO. This sensor is mounted to a printed circuit board with the Sample Pressure Sensor on the sample
chamber (see Section 11.4.3.1 and Figure 3-4).).

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11.5. ELECTRONIC OPERATION
11.5.1. OVERVIEW
Figure 11-9 shows a block diagram of the major electronic components of the M300E/EM.
At the heart of the analyzer is a microcomputer/CPU that controls various internal processes, interprets data,
makes calculations, and reports results using specialized firmware developed by Teledyne API. It communicates
with the user as well as receives data from and issues commands to a variety of peripheral devices via a
separate printed circuit assembly called the motherboard.
The motherboard collects data, performs signal conditioning duties and routes incoming and outgoing signals
between the CPU and the analyzer’s other major components.
Data is generated by a gas-filter-correlation optical bench which outputs an analog signal corresponding to the
concentration of CO in the sample gas. This analog signal is transformed into two, pre-amplified, DC voltages
(CO MEAS and CO REF) by a synchronous demodulator printed circuit assembly. CO MEAS and CO REF are
converted into digital data by a unipolar, analog-to-digital converter, located on the motherboard.
A variety of sensors report the physical and operational status of the analyzer’s major components, again
through the signal processing capabilities of the motherboard. These status reports are used as data for the CO
concentration calculation and as trigger events for certain control commands issued by the CPU. They are
stored in memory by the CPU and in most cases can be viewed but the user via the front panel display.
The CPU communicates with the user and the outside world in a variety of manners:
 Through the analyzer’s keyboard and vacuum florescent display over a clocked, digital, serial I/O bus
(using a protocol called I2C);
 RS-232 & RS-485 Serial I/O channels;
 Via an optional Ethernet communications card:
 Various analog and current analog outputs, and
 Several sets of Digital I/O channels.
Finally, the CPU issues commands via a series of relays and switches (also over the I2C bus) located on a
separate printed circuit assembly to control the function of key electromechanical devices such as heaters,
motors and valves.

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Analog Outputs

Back Panel
Connectors

Optional
4-20 mA

Control Inputs:
1–8

A3
A4

COM1

COM2

Status Outputs:
1–6

Analog
Outputs
(D/A)

Power-Up
Circuit

Optional
Ethernet
Interface

External
Digital I/O)
A/D
Converter(
V/F)

MOTHER
BOARD

Flash Chip

PC 104 Bus

WHEEL
TEMP

Zero/Span
Valve
Options

Internal
Digital I/O

Sensor Status & Control

Thermistor
Interface

BENCH
TEMP

Disk On
Chip

RS – 232

Box
Temp

SAMPLE
TEMP

PC 104
CPU Card

RS–232
or RS-485

IC
Bus

Sensor Inputs

C
O

M
E
A
S

R
E
F

Optional
O2 Sensor

Sample Flow
& Pressure
Sensors

Keyboard &
Display

RELAY
BOARD
CPU Status
LED

Optional
CO2
Sensor
TEC Control

SYNC
DEMOD

PUMP

PHT

IR
Source
Photodetector

Drive
Detector
Output

O2 SENSOR
TEMP

(optional)

Schmidt
Trigger

GFC
Wheel

Optical
Bench
Segment Sensor
M / R Sensor

Figure 11-9:

238

GFC
Motor

Wheel
Heater
Bench Heater

M300E/EM Electronic Block Diagram

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11.5.2. CENTRAL PROCESSING UNIT (CPU)
The CPU for the E-Series instruments is a low power (5 VDC, 360mA MAX), high performance, Vortex86SXbased microcomputer running MS-DOS; its operation and assembly are compliant with the PC/104 Standard.
The CPU is installed on the motherboard located inside the rear panel. It supports both RS-232 and RS-485
serial I/O.

The CPU includes two types of non-volatile data storage: a Disk-on-Module and an embedded flash chip.
DISK-ON-MODULE (DOM)
While technically an EEPROM, the DOM,is a 44-pin IDE flash drive with a storage capacity up to 128 MB. It is
used to store the operating system for the computer, the Teledyne API’s Firmware, and most of the operational
data generated by the analyzer’s internal data acquisition system (iDAS - See Section 7.1).
FLASH CHIP
Another, smaller EEPROM is the flash chip embedded in the CPU, which is used to store critical calibration and
configuration data. Storing these key data on a separate, less heavily accessed chip significantly decreases the
chance of the data being corrupted.
In the unlikely event that the flash chip should fail, the analyzer will continue to operate with just the DOM.
However, all configuration information will be lost, requiring the unit to be recalibrated.

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11.5.3. OPTICAL BENCH & GFC WHEEL
Electronically, in the case of the optical bench for the M300E Analyzer, GFC Wheel and associated components
do more than simply measure the amount of CO present in the sample chamber. A variety of other critical
functions are performed here as well.

11.5.3.1. Temperature Control
Because the temperature of a gas affects its density resulting in the amount of light absorbed by that gas, it is
important to reduce the effect of fluctuations in ambient temperature on the M300E’s measurement of CO for the
M300E Analyzer. To accomplish this both the temperature of the sample chamber and the GFC Wheel are
maintained at constant temperatures above their normal operating ranges.
Bench Temperature: To minimize the effects of ambient temperature variations on the sample measurement,
the sample chamber is heated to 48C (8 degrees above the maximum suggested ambient operating
temperature for the analyzer). A strip heater attached to the underside of the chamber housing is the heat
source. The temperature of the sample chamber is sensed by a thermistor, also attached to the sample
chamber housing.
Wheel Temperature: To minimize the effects of temperature variations caused by the near proximity of the IR
Source to the GFC Wheel on the gases contained in the wheel, it is also raised to a high temperature level.
Because the IR Source itself is very hot, the set point for this heat circuit is 68C. A cartridge heater implanted
into the heat sync on the motor is the heat source. The temperature of the wheel/motor assembly is sensed by a
thermistor also inserted into the heat sync.
Both heaters operate off of the AC line voltage supplied to the instrument.

11.5.3.2. IR Source
The light used to detect CO in the sample chamber is generated by an element heated to approximately 1100oC
producing infrared radiation across a broad band. This radiation is optically filtered after it has passed through
the GFC Wheel and the sample chamber and just before it reaches the photo-detector to eliminate all black body
radiation and other extraneous IR emitted by the various components of those components.

11.5.3.3. GFC Wheel
A synchronous AC motor turns the GFC Wheel motor. For analyzers operating on 60Hz line power this motor
turns at 1800 rpm. For those operating on 50Hz line power the spin rate is 1500 rpm. The actual spin rate is
unimportant within a large range since a phase lock loop circuit is used to generate timing pulses for signal
processing.
In order to accurately interpret the fluctuations of the IR beam after it has passed through the sample gas, the
GFC Wheel several other timing signals are produced by other photo emitters/detectors. These devices consist
of a combination LED and detector mounted so that the light emitted by the LED shines through the same mask
on the GFC Wheel that chops the IR beam.

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KEY:
Detection Beam shining
through MEASUREMENT
side of GFC Wheel
Detection Beam shining
through REFERENCE side
of GFC Wheel

IR Detection Ring

Segment Sensor Ring
M/R Sensor Ring

Figure 11-10: GFC Light Mask
M/R SENSOR
This emitter/detector assembly produces a signal that shines through a portion of the mask that allows light to
pass for half of a full revolution of the wheel. The resulting light signal tells the analyzer whether the IR beam is
shining through the measurement or the reference side of the GFC Wheel.
SEGMENT SENSOR
Light from this emitter/detector pair shines through a portion of the mask that is divided into the same number of
segments as the IR detector ring. It is used by the synchronous/demodulation circuitry of the analyzer to latch
onto the most stable part of each measurement and reference IR pulse.

Reference
Pulses

Measurement
Pulses

IR Beam
Pulses
Segment Sensor
Pulses

MR Sensor
Pulses

Figure 11-11: Segment Sensor and M/R Sensor Output
SCHMIDT TRIGGERS
To ensure that the waveforms produced by the Segment Sensor and the M/R Sensor are properly shaped and
clean, these signals are passed through a set of Schmidt Triggers circuits.

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11.5.3.4. IR Photo-Detector
The IR beam is converted into an electrical signal by a cooled solid-state photo-conductive detector. The
detector is composed of a narrow-band optical filter, a piece of lead-salt crystal whose electrical resistance
changes with temperature, and a two-stage thermo-electric cooler.
When the analyzer is on, a constant electrical current is directed through the detector. The IR beam is focused
onto the detector surface, raising its temperature and lowering its electrical resistance that results in a change in
the voltage drop across the detector.
During those times that the IR beam is bright, the temperature of the detector is high; the resistance of the
detector is correspondingly low and its output voltage output is low. During those times when the IR beam
intensity is low or completely blocked by the GFC Wheel mask, the temperature of the detector is lowered by the
two-stage thermo-electric cooler, increasing the detector’s resistance and raising the output voltage.

11.5.4. SYNCHRONOUS DEMODULATOR (SYNC/DEMOD) ASSEMBLY
11.5.4.1. Overview
While the photo-detector converts fluctuations of the IR beam into electronic signals, the Sync/Demod Board
amplifies these signals and converts them into usable information. Initially the output by the photo-detector is a
complex and continuously changing waveform made up of Measure and Reference pulses. The sync/demod
board demodulates this waveform and outputs two analog DC voltage signals, corresponding to the peak values
of these pulses. CO MEAS and CO REF are converted into digital signals by circuitry on the motherboard, then
used by the CPU to calculate the CO concentration of the sample gas.
Additionally the synch/demod board contains circuitry that controls the photo-detector’s thermoelectric cooler as
well as circuitry for performing certain diagnostic tests on the analyzer.

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56V
Bias

CO MEAS
Sample &
Hold
Circuits

Variable
Gain Amp

Dark
Switch

Pre Amp

Photodetector

Signal
Conditioner

TEC Control
PHT DRIVE

E-Test
Generator

CO Reference
Signal
Amplifiers
Conditioner

(x4)
Thermo-Electric
Cooler
Control Circuit
E Test A Gate
E Test B Gate
Dark Test Gate

Compact
Programmable
Logic Device

Measure Gate
Measure Dark Gate
Reference Gate
Reference Dark Gate

Phase Lock Warning

M/R Sensor
Segment
Sensor

From GFC
Wheel

Segment Clock
X1 Reference

E Test Control
Dark Switch
Control

From CPU
via Mother
Board

x10
10

X10 Clock

Phase
Lock
Loop

M/R
Status LED

Phase Lock

Segment
Status LED

Figure 11-12: M300E/EM Sync/Demod Block Diagram

11.5.4.2. Signal Synchronization and Demodulation
The signal emitted by the IR photo-detector goes through several stages of amplification before it can be
accurately demodulated. The first is a pre-amplification stage that raises the signal to levels readable by the rest
of the sync/demod board circuitry. The second is a variable amplification stage that is adjusted at the factory to
compensate for performance variations of mirrors, detectors, and other components of the optical bench from
instrument to instrument.
The workhorses of the sync/demod board are the four sample-and-hold circuits that capture various voltage
levels found in the amplified detector signal needed to determine the value of CO MEAS and CO REF. They are
activated by logic signals under the control of a compact Programmable Logic Device (PLD), which in turn
responds to the output of the Segment Sensor and M/R Sensor as shown in Figure 11-9.
The four sample and hold circuits are:
Table 11-2: Sync DEMOD Sample and Hold Circuits
Designation

Active When:
IR BEAM PASSING THROUGH

Segment Sensor Pulse is:

Measure Gate

MEASUREMENT cell of GFC Wheel

HIGH

Measure Dark Gate

MEASUREMENT Cell of GFC Wheel

LOW

Reference Gate

REFERENCE cell of GFC Wheel

HIGH

Reference Dark Gate

REFERENCE cell of GFC Wheel

LOW

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Timing for activating the Sample and Hold Circuits is provided by a Phase Lock Loop (PLL) circuit. Using the
segment sensor output as a reference signal the PLL generates clock signal at ten times that frequency. This
faster clock signal is used by the PLD to make the Sample and Hold Circuits capture the signal during the center
portions of the detected waveform, ignore the rising and falling edges of the detector signal.

Sample & Hold
Active

Detector
Output

Sample & Hold
Inactive

Figure 11-13: Sample & Hold Timing

11.5.4.3. Sync/Demod Status LED’s
The following two status LED’s located on the sync/demod board provide additional diagnostic tools for checking
the GFC Wheel rotation.
Table 11-3: Sync/Demod Status LED Activity
LED

Function

Status OK

Fault Status

M/R Sensor Status

LED flashes approximately
2/second

LED is stuck
ON or OFF

Segment Sensor
Status

LED flashes approximately
6/second

LED is stuck
ON or OFF

See Section 13.1.4.2 for more information.

11.5.4.4. Photo-Detector Temperature Control
The sync/demod board also contains circuitry that controls the IR photo-detector’s Thermal Electric Coolers
(TEC). A drive voltage, PHT DRIVE, is supplied to the coolers by the sync/demod board which is adjusted by the
sync/demod board based on a return signal called TEC control which alerts the sync/demod board of the
detector’s temperature. The warmer the detector, the harder the coolers are driven.
PHT DRIVE is one of the Test Functions viewable by the user via the form panel. Press until it
appears on the display.

11.5.4.5. Dark Calibration Switch
This switch initiates the Dark Calibration procedure. When initiated by the user (See Section 9.6.1 for more
details), the dark calibration process opens this switch, interrupting the signal from the IR photo-detector. This
allows the analyzer to measure any offset caused by the sync/demod board circuitry.

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11.5.4.6. Electric Test Switch
When active, this circuit generates a specific waveform intended to simulate the function of the IR photo-detector
but with a known set of value which is substituted for the detector’s actual signal via the dark switch. It may also
be initiated by the user (See Section 7.4 for more details).

11.5.5. RELAY BOARD
By actuating various switches and relays located on this board, the CPU controls the status of other key
components. The relay board receives instructions in the form of digital signals over the I2C bus, interprets these
digital instructions and activates its various switches and relays appropriately.

11.5.5.1. Heater Control
The two heaters attached to the sample chamber housing and the GFC Wheel motor are controlled by solid state
relays located on the relay board.
The GFC Wheel heater is simply turned on or off, however control of the bench heater also includes circuitry that
selects which one of its two separate heating elements is activated depending on whether the instrument is
running on 100 VAC, 115 VAC or 230 VAC line power.

11.5.5.2. GFC Wheel Motor Control:
The GFC Wheel operates from a AC voltage supplied by a multi-input transformer located on the relay board.
The step-down ratio of this transformer is controlled by factory-installed jumpers to adjust for 100 VAC, 115 VAC
or 230 VAC line power. Other circuitry slightly alters the phase of the AC power supplied to the motor during
start up based on whether line power is 50Hz or 60 Hz.
Normally, the GFC Wheel Motor is always turning while the analyzer is on. A physical switch located on the
relay board can be used to turn the motor off for certain diagnostic procedures.

11.5.5.3. Zero/Span Valve Options
Any zero/span/shutoff valve options installed in the analyzer are controlled by a set of electronic switches located
on the relay board. These switches, under CPU control, supply the +12VDC needed to activate each valve’s
solenoid.

11.5.5.4. IR Source
The relay board supplies a constant 11.5VDC to the IR Source. Under normal operation the IR source is always
on.

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11.5.5.5. Status LED’s
Eight LED’s are located on the analyzer’s relay board to show the current status on the various control functions
performed by the relay board. They are listed on Table 11-4.
Table 11-4: Relay Board Status LED’s
LED
D1

COLOR
RED

FUNCTION

STATUS WHEN LIT

Watch Dog Circuit

STATUS WHEN UNLIT

Cycles On/Off Every 3 Seconds under direct control of the
analyzer’s CPU.

YELLOW

Wheel Heater

HEATING

NOT HEATING

YELLOW

Bench Heater

HEATING

NOT HEATING

YELLOW

Spare

N/A

GREEN

Sample/Cal Gas
Valve Option

Valve Open to CAL GAS
FLOW

Valve Open to SAMPLE Gas Flow

GREEN

Zero/Span Gas
Valve Option

Valve Open to SPAN GAS
FLOW

Valve Open to ZERO GAS FLOW

GREEN

Shutoff Valve
Option

Valve Open to CAL GAS
FLOW

Valve CLOSED to CAL GAS
FLOW

GREEN

IR SOURCE

Source ON

Source OFF

DC VOLTAGE TEST
POINTS

STATUS LED’s

RELAY PCA
PN 04135

Figure 11-14: Location of relay board Status LED’s

11.5.5.6. I2C Watch Dog Circuitry
Special circuitry on the relay board monitors the activity on the I2C bus and drives LED D1. Should this LED
ever stay ON or OFF for 30 seconds, the watch dog circuit will automatically shut off all valves as well as turn off
the IR Source and all heaters. The GFC Wheel motor will still be running as will the Sample Pump, which is not
controlled by the relay board.

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11.5.6. MOTHERBOARD
This printed circuit assembly provides a multitude of functions including, A/D conversion, digital input/output, PC104 to I2C translation, temperature sensor signal processing and is a pass through for the RS-232 and RS-485
signals.

11.5.6.1. A to D Conversion
Analog signals, such as the voltages received from the analyzer’s various sensors, are converted into digital
signals that the CPU can understand and manipulate by the analog to digital converter (A/D). Under the control
of the CPU, this functional block selects a particular signal input (e.g. BOX TEMP, CO MEAS, CO REF, etc.)
and then coverts the selected voltage into a digital word.
The A/D consists of a Voltage-to-Frequency (V-F) converter, a Programmable Logic Device (PLD), three
multiplexers, several amplifiers and some other associated devices. The V-F converter produces a frequency
proportional to its input voltage. The PLD counts the output of the V-F during a specified time period, and sends
the result of that count, in the form of a binary number, to the CPU.
The A/D can be configured for several different input modes and ranges but in the M300E/EM is used in unipolar mode with a +5 V full scale. The converter includes a 1% over and under-range. This allows signals from
–0.05 V to +5.05 V to be fully converted.
For calibration purposes, two reference voltages are supplied to the A/D converter: Reference Ground and
+4.096 VDC. During calibration, the device measures these two voltages, outputs their digital equivalent to the
CPU. The CPU uses these values to compute the converter’s offset and slope and uses these factors for
subsequent conversions.
See Section 7.4.3 for instructions on performing this calibration.

11.5.6.2. Sensor Inputs
The key analog sensor signals are coupled to the A/D through the master multiplexer from two connectors on the
motherboard. 100K terminating resistors on each of the inputs prevent cross talk from appearing on the sensor
signals.
CO MEASURE AND REFERENCE
These are the primary signals that are used in the computation of the CO concentration. They are the
demodulated IR-sensor signals from the sync demodulator board.
SAMPLE PRESSURE AND FLOW
These are analog signals from two sensors that measure the pressure and flow rate of the gas stream at the
outlet of the sample chamber. This information is used in two ways. First, the sample pressure is used by the
CPU to calculate CO concentration. Second, the pressure and flow rate are monitored as a test function to
assist the user in predicting and troubleshooting failures.

11.5.6.3. Thermistor Interface
This circuit provides excitation, termination and signal selection for several negative-coefficient, thermistor
temperature sensors located inside the analyzer. They are as follows:
SAMPLE TEMPERATURE SENSOR
The source of this signal is a thermistor located inside the sample chamber of the Optical Bench. It measures
the temperature of the sample gas in the chamber. This data is used to during the calculation of the CO
concentration value.

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BENCH TEMPERATURE SENSOR
This thermistor is attached to the sample chamber housing. It reports the current temperature of the chamber
housing to the CPU as part of the bench heater control loop.
WHEEL TEMPERATURE SENSOR
This thermistor is attached to the heatsink on the GFC Wheel motor assembly. It reports the current temperature
of the wheel/motor assembly to the CPU as part of the Wheel Heater control loop.
BOX TEMPERATURE SENSOR
A thermistor is attached to the motherboard. It measures the analyzer’s internal temperature. This information is
stored by the CPU and can be viewed by the user for troubleshooting purposes via the front panel display (see
Section 13.1.2).

11.5.6.4. Analog Outputs
The analyzer comes equipped with four analog outputs: A1, A2, A3 and A4. The type of data and electronic
performance of these outputs are configurable by the user (see Section 7.4).
OUTPUT LOOP-BACK
All four analog outputs are connected back to the A/D converter through a loop-back circuit. This permits the
voltage outputs to be calibrated by the CPU without need for any additional tools or fixtures.

11.5.6.5. Internal Digital I/O
This channel is used to communicate digital status and control signals about the operation of key components of
the Optical Bench. The CPU sends signals to the sync/demod board that initiate the ELECTRICAL TEST and
DARK CALIBRATION procedures.

11.5.6.6. External Digital I/O
This External Digital I/O performs two functions.
STATUS OUTPUTS
Logic-Level voltages are output through an optically isolated 8-pin connector located on the rear panel of the
analyzer. These outputs convey good/bad and on/off information about certain analyzer conditions. They can
be used to interface with certain types of programmable devices (See Section 3.3.3).
CONTROL INPUTS
By applying +5VDC power supplied from an external source such as a PLC or Data logger (See Section 3.3.4),
Zero and Span calibrations can be initiated by contact closures on the rear panel.

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11.5.7. I2C DATA BUS
An I2C data bus is used to communicate data and commands between the CPU and the keyboard/display
interface and the relay board. I2C is a two-wire, clocked, digital serial I/O bus that is used widely in commercial
and consumer electronic systems. A transceiver on the motherboard converts data and control signals from the
PC-104 bus to I2C. The data is then fed to the keyboard/display interface and finally onto the relay board.
Interface circuits on the keyboard/display interface and relay boards convert the I2C data to parallel inputs and
outputs. An additional, interrupt line from the keyboard to the motherboard allows the CPU to recognize and
service key presses on the keyboard.
POWER UP CIRCUIT
This circuit monitors the +5V power supply during start-up and sets the analog outputs, external digital I/O ports,
and I2C circuitry to specific values until the CPU boots and the instrument software can establish control.

11.5.8. POWER SUPPLY/ CIRCUIT BREAKER
The analyzer operates on 100 VAC, 115 VAC or 230 VAC power at either 50Hz or 60Hz. Individual units are set
up at the factory to accept any combination of these five attributes. As illustrated in Figure 11-13, power enters
the analyzer through a standard IEC 320 power receptacle located on the rear panel of the instrument. From
there it is routed through the ON/OFF Switch located in the lower right corner of the Front Panel. A 6.75 Amp
circuit breaker is built into the ON/OFF Switch.
AC power is distributed directly to the sample gas pump. The bench and GFC Wheel heaters as well as the
GFC Wheel receive AC power via the relay board.
AC Line power is converted stepped down and converted to DC power by two DC power supplies. One supplies
+12 VDC, for valves and the IR source, while a second supply provides +5 VDC and ±15 VDC for logic and
analog circuitry. All DC voltages are distributed via the relay board.

CAUTION
GENERAL SAFETY HAZARD
Should the AC power circuit breaker trip, investigate and correct the condition causing
this situation before turning the analyzer back on.

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Figure 11-15: Power Distribution Block Diagram

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11.5.9. COMMUNICATION INTERFACE
The analyzer has several ways to communicate to the outside world. Users can input data and receive
information directly via the front panel keypad and display. Direct communication with the CPU is also available
by way of the analyzer’s RS-232 & RS-485 I/O ports or an optional Ethernet port. The analyzer can also send
and receive different kinds of information via its external digital I/O connectors and the three analog outputs
located on the rear panel.
COMM A
Male

RS–232 ONLY
RS-232 or RS–485

COMM B
Female

ETHERNET
OPTION

Control Inputs:
1–6
Status Outputs:
1–8

A1
A2

CPU

Mother
Board
PC/104 BUS

Analog Outputs
Optional
4-20 mA

KEYBOARD

I2C BUS

A3
I2C BUS

FRONT PANEL DISPLAY

RELAY
BOARD

Figure 11-16: Interface Block Diagram

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11.5.10. FRONT PANEL INTERFACE
The most commonly used method for communicating with the M300E/EM Analyzer is via the instrument’s front
panel which includes a set of three status LED’s, a vacuum florescent display and a keyboard with 8 context
sensitive keys.

Figure 11-17: M300E/EM Front Panel Layout

11.5.10.1. Analyzer Status LED’s
Three LED’s are used to inform the user of the instrument’s basic operating status. They are listed on Table
11-5 as follows:
Table 11-5: Front Panel Status LED’s
NAME

COLOR

STATE

DEFINITION

Off
On
Blinking

Unit is not operating in sample mode, iDAS is disabled.
Sample Mode active; Front Panel Display being updated, iDAS data being stored.
Unit is operating in sample mode, front panel display being updated, iDAS hold-off
mode is ON, iDAS disabled

SAMPLE

Green

CAL

Yellow

Off
On
Blinking

Auto Cal disabled
Auto Cal enabled
Unit is in calibration mode

FAULT

Red

Off
Blinking

CO warnings exist
Warnings exist

11.5.10.2. Keyboard
A row of eight keys just below the vacuum florescent display (see Figure 11-15) is the main method by which the
user interacts with the analyzer. As the software is operated, labels appear on the bottom row of the display
directly above each active key, defining the function of that key as it is relevant for the operation being
performed. Pressing a key causes the associated instruction to be performed by the analyzer.
Note that the keys do not auto-repeat. In circumstances where the same key must be activated for two
consecutive operations, it must be released and re-pressed.

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11.5.10.3. Display
The main display of the analyzer is a vacuum florescent display with two lines of 40 text characters each.
Information is organized in the following manner (see Figure 11-17):
 Mode Field: Displays the name of the analyzer’s current operating mode.
 Message Field: Displays a variety of informational messages such as warning messages, operation data
and response messages during interactive tasks.
 Concentration Field: Displays the actual concentration of the sample gas currently being measured by
the analyzer.
 Keypad Definition Field: Displays the definitions for the row of keys just below the display. These
definitions are dynamic, context sensitive and software driven.

I2C to/from CPU

I2C Interface
Serial
Data

Display
Controller
Display Power
Watchdog
Clock

Display Data
Decoder

Display Write

Keypad
Decoder

I C to Relay Board

Parallel Data

Key Press
Detect

Keyboard Interrupt Status Bit

11.5.10.4. Keyboard/Display Interface Electronics

From 5 VDC
Power Supply

Sample LED
(Green)

Cal LED
(Yellow)

KEYBOARD

Maint.
Switch

Optional
Maintenance
LED

2nd Lang.
Switch

2 x 40 CHAR. VACUUM
FLUORESCENT DISPLAY

Fault LED
(Red)
Beeper

FRONT PANEL

Figure 11-18: Keyboard and Display Interface Block Diagram

The keyboard/display interface electronics of the M300E/EM Analyzer watches the status of the eight front panel
keys, alerts the CPU when keys are depressed, translates data from parallel to serial and back and manages
communications between the keyboard, the CPU and the front panel display. Except for the Keyboard interrupt
status bit, all communication between the CPU and the keyboard/display is handled by way of the instrument’s
I2C bus. The CPU controls the clock signal and determines when the various devices on the bus are allowed to
talk or required to listen. Data packets are labeled with addresses that identify for which device the information is
intended.

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KEYPAD DECODER
Each key on the front panel communicates with a decoder IC via a separate analog line. When a key is
depressed the decoder chip notices the change of state of the associated signal; latches and holds the state of
all eight lines (in effect creating an 8-bit data word); alerts the key-depress-detect circuit (a flip-flop IC); translates
the 8-bit word into serial data and; sends this to the I2C interface chip.
KEY-DEPRESS-DETECT CIRCUIT
This circuit flips the state of one of the inputs to the I2C interface chip causing it to send an interrupt signal to the
CPU

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I2C INTERFACE CHIP
This IC performs several functions:
 Using a dedicated digital status bit, it sends an interrupt signal alerting the CPU that new data from the
keyboard is ready to send.
 Upon acknowledgement by the CPU that it has received the new keyboard data the I2C interface chip
resets the key-depress-detect flip-flop.
 In response to commands from the CPU, it turns the front panel status LEDs on and off and activates the
beeper.
 Informs the CPU when the optional maintenance and second language switches have been opened or
closed (see Section 5 for information on these options).
DISPLAY DATA DECODER
This decoder the serial translates the data sent by the CPU (in TTY format) into a bitmapped image which is sent
over a parallel data bus to the display.
DISPLAY CONTROLLER
This circuit manages the interactions between the display data decoder and the display itself. It generates a
clock pulse that keeps the two devices synchronized. It can also, in response to commands from the CPU turn
off and/or reset the display.
Additionally, for analyzers with the optional maintenance switch is installed (see Section 5), the display controller
turns on an LED located on the back of the keyboard interface PCA whenever the instrument is placed in
maintenance mode.
DISPLAY POWER WATCH DOG
The M300E Analyzer’s display can begin to show garbled information or lock-up if the DC voltage supplied to it
falls too low, even momentarily. To alleviate this, a brownout watch dog circuit monitors the level of the power
supply and in the event that the voltage level falls below a certain level, turns the display off, then on resetting it
I2C LINK TO THE RELAY PCA
While the CPU’s I2C communication with the relay board is also routed through the keyboard/display interface,
information passed to and from the relay board via this channel is not recognized by, acted upon or affected by
the circuitry of the keyboard/display interface.

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11.5.11. SOFTWARE OPERATION
The M300E/EM Gas Filter Correlation Carbon Monoxide Analyzer has at its heart a high performance, 386based microcomputer running MS-DOS. Inside the DOS shell, special software developed by Teledyne API
interprets user commands via the various interfaces, performs procedures and tasks, stores data in the CPU’s
various memory devices and calculates the concentration of the sample gas.
DOS Shell
API FIRMWARE
Memory Handling
IDAS Records
Calibration Data
System Status Data

Analyzer Operations
Calibration Procedures
Configuration Procedures
Autonomic Systems
Diagnostic Routines

PC/104 BUS

ANALYZER
HARDWARE
Interface Handling
Sensor input Data
Display Messages
Keypad
Analog Output Data
RS232 & RS485
External Digital I/O

Measurement
Algorithm

PC/104 BUS

Linearization Table

Figure 11-19: Basic Software Operation

11.5.12. ADAPTIVE FILTER
The M300E/EM software processes the CO MEAS and CO REF signals, after they are digitized by the
motherboard, through an adaptive filter built into the software. Unlike other analyzers that average the output
signal over a fixed time period, the M300E/EM averages over a set number of samples, where each sample is
0.2 seconds. This technique is known as boxcar averaging. During operation, the software automatically
switches between two different length filters based on the conditions at hand. Once triggered, the short filter
remains engaged for a fixed time period to prevent chattering.
During conditions of constant or nearly constant concentration the software, by default, computes an average of
the last 750 samples, or approximately 150 seconds. This provides the calculation portion of the software with
smooth stable readings. If a rapid change in concentration is detected the filter includes, by default, the last 48
samples, approximately 10 seconds of data, to allow the analyzer to more quickly respond. If necessary, these
boxcar lengths can be changed between 1 and 1000 samples but with corresponding tradeoffs in rise time and
signal-to-noise ratio (contact customer service for more information).
Two conditions must be simultaneously met to switch to the short filter. First the instantaneous concentration
must exceed the average in the long filter by a fixed amount. Second the instantaneous concentration must
exceed the average in the long filter by a portion, or percentage, of the average in the long filter.

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11.5.13. CALIBRATION - SLOPE AND OFFSET
Calibration of the analyzer is performed exclusively in software.
During instrument calibration (see Section 9) the user enters expected values for zero and span via the front
panel keypad and commands the instrument to make readings of calibrated sample gases for both levels. The
readings taken are adjusted, linearized, and compared to the expected values. With this information the software
computes values for instrument slope and offset and stores these values in memory for use in calculating the CO
concentration of the sample gas.
The instrument slope and offset values recorded during the last calibration are available for viewing from the
from the front panel (see Section 3.5.4).

11.5.14. MEASUREMENT ALGORITHM
Once the IR photo-detector signal is demodulated into CO MEAS and CO REF by the sync/demod board and
converted to digital data by the motherboard, the M300E/EM analytical software calculates the ratio between CO
MEAS and CO REF. This value is compared to a look-up table that is used, with interpolation, to linearize the
response of the instrument. The linearized concentration value is combined with calibration slope and offset
values, then normalized for changes in sample gas pressure to produce the final CO concentration. This is the
value that is displayed on the instrument front panel display and is stored in memory by the analyzer’s iDAS
system.

11.5.15. TEMPERATURE AND PRESSURE COMPENSATION
Changes in pressure can have a noticeable, effect on the CO concentration calculation. To account for this, the
M300E/EM software includes a feature which allows the instrument to compensate for the CO calculations based
on changes in ambient pressure.
The TPC feature multiplies the analyzer’s CO concentration by a factor which is based on the difference between
the ambient pressure of the sample gas normalized to standard atmospheric pressure. As ambient pressure
increases, the compensated CO concentration is decreased.

11.5.16. INTERNAL DATA ACQUISITION SYSTEM (IDAS)
The iDAS is designed to implement predictive diagnostics that stores trending data for users to anticipate when
an instrument will require service. Large amounts of data can be stored in non-volatile memory and retrieved in
plain text format for further processing with common data analysis programs. The iDAS has a consistent user
interface in all Teledyne API analyzers. New data parameters and triggering events can be added to the
instrument as needed.
Depending on the sampling frequency and the number of data parameters the iDAS can store several months of
data, which are retained even when the instrument is powered off or a new firmware is installed. The iDAS
permits users to access the data through the instrument’s front panel or the remote interface. The latter can
automatically download stored data for further processing. For information on using the iDAS, refer to Section
7.1.

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12. MAINTENANCE SCHEDULE & PROCEDURES
Predictive diagnostic functions, including data acquisition records, failure warnings and test functions built into the
analyzer, allow the user to determine when repairs are necessary without performing painstaking preventative
maintenance procedures. There are, however, a minimal number of simple procedures that when performed
regularly will ensure that the analyzer continues to operate accurately and reliably over its lifetime. Repairs and
troubleshooting are covered in Section Error! Reference source not found. of this manual.

12.1. MAINTENANCE SCHEDULE
Table 12-1 shows a typical maintenance schedule for the analyzer. Please note that in certain environments (i.e.
dusty, very high ambient pollutant levels) some maintenance procedures may need to be performed more often
than shown.

NOTE
A Span and Zero Calibration Check (see CAL CHECK REQ’D Column of Table 12-1) must be performed
following certain of the maintenance procedure listed below.
See Sections 9.3 and 9.4 for instructions on performing checks.

CAUTION
GENERAL SAFETY HAZARD
Risk of electrical shock. Disconnect power before performing any of the following
operations that require entry into the interior of the analyzer.

CAUTION
QUALIFIED PERSONNEL
The operations outlined in this section are to be performed by qualified maintenance
personnel only.

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Table 12-1: M300E/EM Maintenance Schedule

ITEM

ACTION

FREQ

CAL
CHECK
REQ’D

Particulate
Filter

Replace

Weekly or As
Needed

Verify Test
Functions

Record and
Analyze

Weekly or after
any
Maintenance or
Repair

Pump
Diaphragm

Replace

Annually

Yes

Perform Flow
Check

Check Flow

Annually

Perform
Leak Check

Verify Leak
Tight

Annually or
after any
Maintenance or
Repair

Pneumatic
lines

Examine and
Clean

As Needed

Yes if
cleaned

Cleaning

Clean

As Needed

Only if
cover
removed

MANUAL

DATE PERFORMED

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Table 12-2: M300E/EM Test Function Record
FUNCTION

OPERATING
MODE*

STABILITY

ZERO CAL

CO MEAS

ZERO CAL

DATE RECORDED

ZERO CAL

MR RATIO
SPAN CAL

PRES

SAMPLE

PHT DRIVE

AFTER WARMUP

SLOPE

SPAN CAL

OFFSET

ZERO CAL

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12.2. PREDICTING FAILURES USING THE TEST FUNCTIONS
The Test Functions can be used to predict failures by looking at how their values change over time. Initially it
may be useful to compare the state of these Test Functions to the values recorded on the printed record of the
final calibration performed on your instrument at the factory, P/N 04307. Table 12-3 can be used as a basis for
taking action as these values change with time. The internal data acquisition system (iDAS) is a convenient way
to record and track these changes. Use APICOM to download and review this data from a remote location.

Table 12-3: Predictive uses for Test Functions
FUNCTION

CONDITION

BEHAVIOR

STABILITY

Zero Cal

Increasing

CO MEAS

Zero Cal

Decreasing

Increasing
Zero Cal
Decreasing
MR RATIO

Increasing
Span Cal
Decreasing
Increasing > 1”
PRES

Sample
Decreasing > 1”

PHT DRIVE

Any, but with
Bench Temp at
48°C

OFFSET

Zero Cal

SLOPE

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Span Cal

Increasing

INTERPRETATION
























Pneumatic Leaks – instrument & sample system
Detector deteriorating
Source Aging
Detector deteriorating
Optics getting dirty or contaminated
Source Aging
Detector deteriorating
Contaminated zero gas (H2O)
Source Aging
Detector deteriorating
GFC Wheel Leaking
Pneumatic Leaks
Contaminated zero gas (CO)
Source Aging
Pneumatic Leaks – instrument & sample system
Calibration system deteriorating
GFC Wheel Leaking
Source Aging
Calibration system deteriorating
Pneumatic Leak between sample inlet and Sample Cell
Change in sampling manifold
Dirty particulate filter
Pneumatic obstruction between sample inlet and
Sample Cell
 Obstruction in sampling manifold
 Mechanical Connection between IR-Detector and
Sample Cell deteriorating
 IR-Photodetector deteriorating

Increasing

 See MR Ratio - Zero Cal Decreasing above

Decreasing

 See MR Ratio - Zero Cal Increasing above

Increasing

 See MR Ratio - Span Cal Decreasing above

Decreasing

 See MR Ratio – Span Cal Increasing above

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12.3. MAINTENANCE PROCEDURES
The following procedures are to be performed periodically as part of the standard maintenance of the M300E.

12.3.1. REPLACING THE SAMPLE PARTICULATE FILTER
The particulate filter should be inspected often for signs of plugging or contamination. We recommend that the
filter and the wetted surfaces of the filter housing are handled as little as possible when you change the filter. Do
not touch any part of the housing, filter element, PTFE retaining ring, glass cover and the o-ring.
To change the filter:
1. Turn OFF the analyzer to prevent drawing debris into the instrument.
2. Open the M300E Analyzer’s hinged front panel and unscrew the knurled retaining ring on the filter
assembly.

Figure 12-1:

Sample Particulate Filter Assembly

3. Carefully remove the retaining ring, PTFE o-ring, glass filter cover and filter element.
4. Replace the filter, being careful that the element is fully seated and centered in the bottom of the holder.
5. Re-install the PTFE o-ring (with the notches up), the glass cover, then screw on the retaining ring and
hand tighten. Inspect the seal between the edge of filter and the o-ring to assure a proper seal.
6. Re-start the Analyzer.

12.3.2. REBUILDING THE SAMPLE PUMP
The diaphragm in the sample pump periodically wears out and must be replaced. A sample rebuild kit is
available – see label on pump for the part number of the pump rebuild kit. Instructions and diagrams are
included with the kit.
Always perform a Flow and Leak Check after rebuilding the Sample Pump.

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12.3.3. PERFORMING LEAK CHECKS
Leaks are the most common cause of analyzer malfunction; Section 12.3.3.1 presents a simple leak check
procedure. Section 12.3.3.2 details a more thorough procedure.

12.3.3.1. Vacuum Leak Check and Pump Check
This method is easy and fast. It detects, but does not locate most leaks. It also verifies that the sample pump is
in good condition.
1. Turn the analyzer ON, and allow enough time for flows to stabilize.
2. Cap the sample inlet port.
3. After several minutes, when the pressure has stabilized, scroll through the TEST menu, note the
SAMPLE PRESSURE reading.
4. If the reading is < 10 in-Hg, the pump is in good condition and there are no large leaks.
5. Check the sample gas flow. If the flow is <10 cm3/min and stable, there are no large leaks in the
instrument’s pneumatics.

12.3.3.2. Pressure Leak Check
If you can’t locate the leak by the above procedure, use the following procedure. Obtain a leak checker similar to
the Teledyne API P/N 01960, which contains a small pump, shut-off valve and pressure gauge. Alternatively, a
convenient source of low-pressure gas is a tank of span gas, with the two-stage regulator adjusted to less than
15 psi with a shutoff valve and pressure gauge.

CAUTION
GENERAL SAFETY HAZARD
Do not use bubble solution with vacuum applied to the analyzer. The solution may
contaminate the instrument. Do not exceed 15 PSIG pressure.

6. Turn OFF power to the instrument.
7. Install a leak checker or tank of gas as described above on the sample inlet at the rear panel.
8. Remove the instrument cover and locate the inlet side of the sample pump. Remove the flow assembly
from the pump and plug it with the appropriate gas-tight fitting.
9. Pressurize the instrument with the leak checker, allowing enough time to fully pressurize the instrument
through the critical flow orifice. Check each fitting with soap bubble solution, looking for bubbles. Once
the fittings have been wetted with soap solution, do not re-apply vacuum, as it will suck soap solution
into the instrument and contaminate it. Do not exceed 15 psi pressure.
10. If the instrument has one of the zero and span valve options, the normally closed ports on each valve
should also be separately checked. Connect the leak checker to the normally closed ports and check
with soap bubble solution.
11. Once the leak has been located and repaired, the leak-down rate should be < 1 in-Hg (0.4 psi) in 5
minutes after the pressure is shut off.

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12.3.4. PERFORMING A SAMPLE FLOW CHECK
CAUTION
GENERAL SAFETY HAZARD
Always use a separate calibrated flow meter capable of measuring flows in the 0 – 1000
cm3/min range to measure the gas flow rate though the analyzer.
DO NOT use the built in flow measurement viewable from the Front Panel of the
instrument. This measurement is only for detecting major flow interruptions such as
clogged or plugged gas lines.
See Figure 3-2 for sample port location.
1. Attach the Flow Meter to the sample inlet port on the rear panel. Ensure that the inlet to the Flow Meter
is at atmospheric pressure.
2. Sample flow should be 800 cm3/min  10%.
3. Once an accurate measurement has been recorded by the method described above, adjust the
analyzer’s internal flow sensors (See Section 9.6.3).
Low flows indicate blockage somewhere in the pneumatic pathway, typically a plugged sintered filter or critical
flow orifice in one of the analyzer’s flow control assemblies. High flows indicate leaks downstream of the Flow
Control Assembly.

12.3.5. CLEANING THE OPTICAL BENCH
The M300E/EM sensor assembly and optical bench are complex and delicate. Disassembly and cleaning is not
recommended. Please check with the factory before disassembling the optical bench.

12.3.6. CLEANING EXTERIOR SURFACES OF THE M300E/EM
If necessary, the exterior surfaces of the M300E/EM can be cleaned with a clean damp cloth. Do not submerge
any part of the instrument in water or cleaning solution.

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13. TROUBLESHOOTING & REPAIR
This contains a variety of methods for identifying the source of performance problems with the analyzer. Also
included in this are procedures that are used in repairing the instrument.

NOTE
QUALIFIED PERSONNEL
The operations outlined in this section must be performed by qualified maintenance
personnel only.

CAUTION
GENERAL SAFETY HAZARD
Risk of electrical shock. Some operations need to be carried out with the
instrument open and running.
Exercise caution to avoid electrical shocks and electrostatic or mechanical
damage to the analyzer.
Do not drop tools into the analyzer or leave those after your procedures.
Do not shorten or touch electric connections with metallic tools while operating
inside the analyzer.
Use common sense when operating inside a running analyzer.

13.1. GENERAL TROUBLESHOOTING
The M300E/EM Carbon Monoxide Analyzer has been designed so that problems can be rapidly detected,
evaluated and repaired. During operation, it continuously performs diagnostic tests and provides the ability to
evaluate its key operating parameters without disturbing monitoring operations.
A systematic approach to troubleshooting will generally consist of the following five steps:
1. Note any WARNING MESSAGES and take corrective action as necessary.
2. Examine the values of all TEST functions and compare them to factory values. Note any major
deviations from the factory values and take corrective action.
3. Use the internal electronic status LED’s to determine whether the electronic communication channels are
operating properly.
Verify that the DC power supplies are operating properly by checking the voltage test points on the relay
PCA.
Note that the analyzer’s DC power wiring is color-coded and these colors match the color of the
corresponding test points on the relay PCA.
4. SUSPECT A LEAK FIRST!
Customer service data indicate that the majority of all problems are eventually traced to leaks in the
internal pneumatics of the analyzer or the diluent gas and source gases delivery systems.
Check for gas flow problems such as clogged or blocked internal/external gas lines, damaged seals,
punctured gas lines, a damaged / malfunctioning pumps, etc.
5. Follow the procedures defined in Section 13.5 to confirm that the analyzer’s vital functions are working
(power supplies, CPU, relay PCA, keyboard, PMT cooler, etc.).
 See Figure 3-4 for the general layout of components and sub-assemblies in the analyzer.
 See the wiring interconnect diagram and interconnect list in Appendix D.

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13.1.1. FAULT DIAGNOSIS WITH WARNING MESSAGES
The most common and/or serious instrument failures will result in a warning message being displayed on the
front panel. Table 13-1 lists warning messages, along with their meaning and recommended corrective action.
It should be noted that if more than two or three warning messages occur at the same time, it is often an
indication that some fundamental analyzer sub-system (power supply, relay board, motherboard) has failed
rather than indication of the specific failures referenced by the warnings. In this case, it is recommended that
proper operation of power supplies (See Section 13.5.2), the relay board (See Section 13.5.5), and the A/D
Functions (see Section Error! Reference source not found.) be confirmed before addressing the specific
warning messages.
The analyzer will alert the user that a Warning Message is active by displaying the keypad label MSG on the
Front Panel. In this case the Front panel display will look something like the following:

SAMPLE
TEST

BENCH TEMP WARNING

CAL

MSG

CO = XXX.0
CLR

SETUP

The analyzer will also alert the user via the Serial I/O COM port(s) and cause the FAULT LED on the front panel
to blink.
To view or clear the various warning messages press:

Figure 13-1:

268

Viewing and Clearing Warning Messages

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Table 13-1: Warning Messages - Indicated Failures
WARNING
MESSAGE

FAULT CONDITION

BENCH TEMP
WARNING

The optical bench temp is
controlled at 48  2 °C.

BOX TEMP
WARNING

Box Temp is
< 5 °C or > 48 °C.

CANNOT DYN
SPAN

Dynamic Span operation failed

Measured concentration value is too high or low.
Concentration slope value to high or too low

CANNOT DYN
ZERO

Dynamic Zero operation failed

Measured concentration value is too high.
Concentration offset value to high.

CONFIG
INITIALIZED

Configuration and Calibration data
reset to original Factory state.

Failed disk on chip
User erased data

DATA INITIALIZED

Data Storage in iDAS was erased

Failed disk on chip
User cleared data

FRONT PANEL
WARN

The CPU is unable to Communicate
with the Front Panel Display
/Keyboard

PHOTO TEMP
WARNING

PHT DRIVE is
>4800 mVDC

REAR BOARD NOT
DET

Motherboard not detected on power
up.

POSSIBLE CAUSES
Bad bench heater
Bad bench temperature sensor
Bad relay controlling the bench heater
Entire relay board is malfunctioning
2
I C bus malfunction
o
NOTE: Box temperature typically runs ~7 C warmer than ambient
temperature.
Poor/blocked ventilation to the analyzer.
Stopped exhaust-fan
Ambient temperature outside of specified range

Warning only appears on serial I/O com port(s)
Front panel display will be frozen, blank or will not respond.
Failed keyboard
2
I C bus failure
Loose connector/wiring
Failed IR photo-detector
Failed sync/demod board
IR photo-detector improperly attached to the sample chamber
Bench temp too high.
Warning only appears on serial I/O com port(s)
Front panel display will be frozen, blank or will not respond.
Massive failure of motherboard
2

RELAY BOARD
WARN

The CPU cannot communicate with
the Relay Board.

SAMPLE FLOW
WARN

3
Sample flow rate is < 500 cm /min
3
or > 1000 cm /min.

SAMPLE PRES
WARN

Sample Pressure is <10 in-Hg or
> 35 in-Hg
Normally 29.92 in-Hg at sea level
decreasing at 1 in-Hg per 1000 ft of
altitude (with no flow – pump
disconnected).

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I C bus failure
Failed relay board
Loose connectors/wiring
Failed sample pump
Blocked sample inlet/gas line
Dirty particulate filter
Leak downstream of critical flow orifice
Failed flow sensor/circuitry
If sample pressure is < 10 in-hg:
Blocked particulate filter
Blocked sample inlet/gas line
Failed pressure sensor/circuitry
If sample pressure is > 35 in-hg:
Pressurized sample gas. Install vent
Blocked vent line on pressurized sample/zero/span gas supply
Bad pressure sensor/circuitry

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Table 13-1: Warning Messages – Indicated Failures (cont.)
WARNING
MESSAGE

SAMPLE TEMP
WARN

FAULT CONDITION

POSSIBLE CAUSES

Sample temperature is < 10oC or >
100oC.

Occurs when CO Ref is <1250
mVDC or >4950 mVDC.
SOURCE WARNING
Either of these conditions will result
in an invalid M/R ratio.

SYSTEM RESET

WHEEL TEMP
WARNING

The computer has rebooted.

The filter wheel temperature is
controlled at 68  2 °C

Ambient temperature outside of specified range
Failed bench heater
Failed bench temperature sensor
Relay controlling the bench heater
Failed relay board
2
I C bus
GFC Wheel stopped
Failed sync/demod board
If status LED’s on the sync/demod board ARE flashing the cause is
most likely a failed:
IR source
Relay board
2
I C bus
IR photo-detector
This message occurs at power on. If you have not cycled the power
on your instrument:
Failed +5 VDC power,
Fatal error caused software to restart
Loose connector/wiring
Blocked cooling vents below GFC Assembly. Make sure that
adequate clear space beneath the analyzer.
Analyzer’s top cover removed
Wheel heater
Wheel temperature sensor
Relay controlling the wheel heater
Entire relay board
2
I C bus

13.1.2. FAULT DIAGNOSIS WITH TEST FUNCTIONS
Besides being useful as predictive diagnostic tools, the test functions viewable from the front panel can be used
to isolate and identify many operational problems when combined with a thorough understanding of the
analyzer’s Theory of Operation (see Section Error! Reference source not found.).
The acceptable ranges for these test functions are listed in the “Nominal Range” column of the analyzer Final
Test and Validation Data Sheet (M300E, P/N 04307 and M300EM, P/N 04311) shipped with the instrument.
Values outside these acceptable ranges indicate a failure of one or more of the analyzer’s subsystems.
Functions whose values are still within the acceptable range but have significantly changed from the
measurement recorded on the factory data sheet may also indicate a failure.

NOTE:
A worksheet has been provided in Appendix C to assist in recording the value of these test functions.
This worksheet also includes expected values for the various test functions.

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The following table contains some of the more common causes for these values to be out of range.
Table 13-2: Test Functions - Indicated Failures
TEST
FUNCTIONS
(As Displayed)

TIME

INDICATED FAILURE(S)
Time of day clock is too fast or slow.
To adjust, see Section 6.5.4.
Battery in clock chip on CPU board may be dead.

RANGE

Incorrectly configured measurement range(s) could cause response problems with a Data logger or chart
recorder attached to one of the analog output.
If the Range selected is too small, the recording device will over range.
If the Range is too big, the device will show minimal or no apparent change in readings.

STABIL

Indicates noise level of instrument or CO concentration of sample gas (see Section 13.4.2 for causes).

CO MEAS
&
CO REF

If the value displayed is too high the IR Source has become brighter. Adjust the variable gain potentiometer on
the sync/demod board (see Section 13.5.6.1).
If the value displayed is too low or constantly changing and the CO REF is OK:
 Failed multiplexer on the mother board
 Failed sync/demod board
 Loose connector or wiring on sync/demod board
 If the value displayed is too low or constantly changing and the CO REF is bad:
 GFC Wheel stopped or rotation is too slow
 Failed sync/demod board IR source
 Failed IR source
 Failed relay board
2
 Failed I C bus
 Failed IR photo-detector

MR Ratio

When the analyzer is sampling zero air and the ratio is too low:
 The reference cell of the GFC Wheel is contaminated or leaking.
 The alignment between the GFC Wheel and the segment sensor, the M/R sensor or both is incorrect.
 Failed sync/demod board
When the analyzer is sampling zero air and the ratio is too high:
 Zero air is contaminated
 Failed IR photo-detector

PRES

See Table 13-1 for SAMPLE PRES WARN.

SAMPLE FL

Check for gas flow problems (see Section 13.2).

SAMP TEMP

SAMPLE TEMP should be close to BENCH TEMP. Temperatures outside of the specified range or oscillating
temperatures are cause for concern.

BENCH
TEMP

Bench temp control improves instrument noise, stability and drift. Temperatures outside of the specified range
or oscillating temperatures are cause for concern. Table 13-1 for BENCH TEMP WARNING.

WHEEL
TEMP

Wheel temp control improves instrument noise, stability and drift. Outside of set point or oscillating
temperatures are causes for concern. See Table 13-1 for WHEEL TEMP WARNING.

BOX TEMP

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If the box temperature is out of range, check fan in the power supply module. Areas to the side and rear of
instrument should allow adequate ventilation. See Table 13-1 for BOX TEMP WARNING.

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Table 13-2:
TEST
FUNCTIONS
(As Displayed)

PHT DRIVE

SLOPE

OFFSET

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Test Functions - Indicated Failures (cont.)

INDICATED FAILURE(S)
If this drive voltage is out of range it may indicate one of several problems:
 A poor mechanical connection between the photodetector, its associated mounting hardware and the
absorption cell housing;
 An electronic failure of the IR Photo-Detector’s built-in cooling circuitry, or;
 A temperature problem inside the analyzer chassis. In this case other temperature warnings would also be
active such as BENCH TEMP WARNING or BOX TEMP WARNING.
Values outside range indicate
Contamination of the zero air or span gas supply
Instrument is Miscalibrated
Blocked gas flow
Contaminated or leaking GFC Wheel (either chamber)
Faulty IR photo-detector
Faulty sample faulty IR photo-detector pressure sensor (P1) or circuitry
Invalid M/R ratio (see above)
Bad/incorrect span gas concentration due.
Values outside range indicate
Contamination of the zero air supply
Contaminated or leaking GFC Wheel (either chamber)
Faulty IR photo-detector

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13.1.3. DIAG  SIGNAL I/O: USING THE DIAGNOSTIC SIGNAL I/O
FUNCTION
The signal I/O diagnostic mode allows access to the digital and analog I/O in the analyzer. Some of the digital
signals can be controlled through the keyboard. These signals, combined with a thorough understanding of the
instruments Theory of Operation (found in Section Error! Reference source not found.), are useful for
troubleshooting in three ways:
 The technician can view the raw, unprocessed signal level of the analyzer’s critical inputs and outputs.
 Many of the components and functions that are normally under algorithmic control of the CPU can be
manually exercised.
 The technician can directly control the signal level Analog and Digital Output signals.
This allows the technician to observe systematically the effect of directly controlling these signals on the
operation of the analyzer. The following flowchart shows an example of how to use the Signal I/O menu to view
the raw voltage of an input signal or to control the state of an output voltage or control signal.

Figure 13-2:

Example of Signal I/O Function
NOTE

Any I/O signals changed while in the signal I/O menu will remain in effect ONLY until signal I/O menu is
exited. The Analyzer regains control of these signals upon exit.

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See Appendix A-4 for a complete list of the parameters available for review under this menu

13.1.4.

INTERNAL ELECTRONIC STATUS LED’S

Several LED’s are located inside the instrument to assist in determining if the analyzer’s CPU, I2C bus and relay
board, GFC Wheel and the sync/demodulator board are functioning properly.

13.1.4.1. CPU Status Indicator
DS5, a red LED, that is located on upper portion of the motherboard, just to the right of the CPU board, flashes
when the CPU is running the main program loop. After power-up, approximately 30 to 60 seconds, DS5 should
flash on and off. If characters are written to the front panel display but DS5 does not flash then the program files
have become corrupted. If after 30 – 60 seconds neither the DS5 is flashing or no characters have been written
to the front panel display then the CPU is bad and must be replaced.

Motherboard
P/N 04069

CPU Status LED

Figure 13-3:

274

CPU Status Indicator

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13.1.4.2. Sync Demodulator Status LED’s
Two LED’s located on the Sync/Demod Board and are there to make it obvious that the GFC Wheel is spinning
and the synchronization signals are present:
Table 13-3: Sync/Demod Board Status Failure Indications
LED

FUNCTION

FAULT STATUS

M/R Sensor Status
D1
(Flashes slowly)

Segment Sensor
Status

INDICATED FAILURE(S)

LED is stuck
ON or OFF

GFC Wheel is not turning
M/R Sensor on Opto-Pickup Board failed
Sync/Demod Board failed
JP 4 Connector/Wiring faulty
Failed/Faulty +5 VDC Power Supply (PS1)

LED is stuck
ON or OFF

GFC Wheel is not turning
Segment Sensor on Opto-Pickup Board failed
Sync/Demod Board failed
JP 4 Connector/Wiring faulty
Failed/Faulty +5 VDC Power Supply (PS1)

(Flashes quickly)

JP4 Connector to Opto-Pickup
Board

D1 – M/R Sensor Status
D2 – Segment Sensor Status

Figure 13-4:

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Sync/Demod Board Status LED Locations

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13.1.4.3. Relay Board Status LED’s
There are eight LED’s located on the Relay Board. The most important of which is D1, which indicates the
health of the I2C bus. If D1 is blinking the other faults following LED’s can be used in conjunction with DIAG
menu signal I/O to identify hardware failures of the relays and switches on the relay (see Section 13.1.3 and
Appendix D).
Table 13-4: I2C Status LED Failure Indications
LED

D1
(Red)

FUNCTION

FAULT STATUS

I2C bus Health
(Watch Dog
Circuit)

Continuously ON
or
Continuously OFF

INDICATED FAILURE(S)
Failed/Halted CPU
Faulty Motherboard, Keyboard or Relay Board
Faulty Connectors/Wiring between Motherboard,
Keyboard or Relay Board
Failed/Faulty +5 VDC Power Supply (PS1)

DC VOLTAGE TEST
POINTS

STATUS LED’s

RELAY PCA
PN 04135

Figure 13-5:

276

Relay Board Status LEDs

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Table 13-5:
LED

D2
Yellow

FUNCTION

Wheel Heater

Relay Board Status LED Failure Indications

SIGNAL I/O PARAMETER
ACTIVATED BY

WHEEL_HEATER

D3
Yellow

Bench Heater

BENCH_HEATER

D4
Yellow

Spare

N/A

D5
Green

D6
Green

D7
Green

D8
Green

Sample/Cal Gas
Valve Option

Zero/Span Gas
Valve Option

Shutoff Valve
Option

IR SOURCE

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CAL_VALVE

SPAN_VALVE

SHUTOFF_VALVE

IR_SOURCE

DIAGNOSTIC TECHNIQUE

VIEW RESULT

WHEEL_TEMP

Voltage displayed should change. If not:
Failed Heater
Faulty Temperature Sensor
Failed AC Relay
Faulty Connectors/Wiring

BENCH_TEMP

Voltage displayed should change. If not:
Failed Heater
Faulty Temperature Sensor
Failed AC Relay
Faulty Connectors/Wiring

N/A

Sample/Cal Valve should audibly change states. If
not:
Failed Valve
Failed Relay Drive IC on Relay Board
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring

N/A

Zero/Span Valve should audibly change states. If
not:
Failed Valve
Failed Relay Drive IC on Relay Board
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring

N/A

Shutoff Valve should audibly change states. If not:
Failed Valve
Failed Relay Drive IC on Relay Board
Failed Relay Board
Faulty +12 VDC Supply (PS2)
Faulty Connectors/Wiring

CO_MEASURE

Voltage displayed should change. If not:
Failed IR Source
Faulty +12 VDC Supply (PS2)
Failed Relay Board
Failed IR Photo-Detector
Failed Sync/Demod Board
Faulty Connectors/Wiring

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13.2. GAS FLOW PROBLEMS
When troubleshooting flow problems, it is a good idea to first confirm that the actual flow and not the analyzer’s
flow sensor and software are in error, or the flow meter is in error. Use an independent flow meter to perform a
flow check as described in Section 12.3.4. If this test shows the flow to be correct, check the pressure sensors
as described in Section 13.5.6.6.
The M300E/EM has one main gas flow path. With the IZS or zero/span valve option installed, there are several
subsidiary paths but none of those are displayed on the front panel or stored by the iDAS.
With the O2 sensor option installed, third gas flow controlled with a critical flow orifice is added, but this flow is not
measured or reported.
In general, flow problems can be divided into three categories:
1. Flow is too high
2. Flow is greater than zero, but is too low, and/or unstable
3. Flow is zero (no flow)
When troubleshooting flow problems, it is crucial to confirm the actual flow rate without relying on the analyzer’s
flow display. The use of an independent, external flow meter to perform a flow check as described in Section
12.3.4 is essential.
The flow diagrams found in a variety of locations within this manual depicting the M300E/EM in its standard
configuration and with options installed can help in trouble-shooting flow problems. For your convenience they
are collected here.

13.2.1. M300E/EM INTERNAL GAS FLOW DIAGRAMS

Figure 13-6:

278

M300E/EM – Basic Internal Gas Flow

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Figure 13-7:

Internal Pneumatic Flow OPT 50A – Zero/Span Valves (OPT 50A & 50B)

Figure 13-8:

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Internal Pneumatic Flow OPT 50B – Zero/Span/Shutoff Valves

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Figure 13-9:

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Internal Pneumatic Flow OPT 51B – Zero/Span Valves with Internal Zero Air Scrubber

Figure 13-10: Internal Pneumatic Flow OPT 51C – Zero/Span/Shutoff w/ Internal Zero Air Scrubber

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Figure 13-11: M300E/EM – Internal Pneumatics with O2 Sensor Option 65

Figure 13-12: M300E/EM – Internal Pneumatics with CO2 Sensor Option 66

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13.2.2. TYPICAL SAMPLE GAS FLOW PROBLEMS
13.2.2.1. Flow is Zero
The unit displays a SAMPLE FLOW warning message on the front panel display or the SAMPLE FLOW test
function reports a zero or very low flow rate.
Confirm that the sample pump is operating (turning). If not, use an AC voltmeter to make sure that power is
being supplied to the pump if no power is present at the electrical leads of the pump.
1. If AC power is being supplied to the pump, but it is not turning, replace the pump.
2. If the pump is operating but the unit reports no gas flow, perform a flow check as described in Section
12.3.4.
3. If no independent flow meter is available:
 Disconnect the gas lines from both the sample inlet and the exhaust outlet on the rear panel of the
instrument.
 Make sure that the unit is in basic SAMPLE Mode.
 Place a finger over an Exhaust outlet on the rear panel of the instrument.
 If gas is flowing through the analyzer, you will feel pulses of air being expelled from the Exhaust
outlet.
4. If gas flows through the instrument when it is disconnected from its sources of zero air, span gas or
sample gas, the flow problem is most likely not internal to the analyzer. Check to make sure that:
 All calibrators/generators are turned on and working correctly.
 Gas bottles are not empty or low.
 Valves, regulators and gas lines are not clogged or dirty.

13.2.2.2. Low Flow
1. Check if the pump diaphragm is in good condition. If not, rebuild the pump (see Section 12.3.2). Check
the Spare Parts List for information on pump rebuild kits.
2. Check for leaks as described in Section 12.3.3. Repair the leaking fitting, line or valve and re-check.
3. Check for the sample filter and the orifice filter for dirt. Replace filters (see 12.3.1).
4. Check for partially plugged pneumatic lines, or valves. Clean or replace them.
5. Check for plugged or dirty critical flow orifices. Replace them.
6. If an IZS option is installed in the instrument, press CALZ and CALS. If the flow increases then suspect
a bad sample/cal valve.

13.2.2.3. High Flow
The most common cause of high flow is a leak in the sample flow control assembly or between there and the
pump. If no leaks or loose connections are found in the fittings or the gas line between the orifice and the pump,
replace the critical flow orifice(s) inside the sample flow control assembly.

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13.2.2.4. Displayed Flow = “Warnings”
This warning means that there is inadequate gas flow. There are four conditions that might cause this:
1. A leak upstream or downstream of the flow sensor
2. A flow obstruction upstream or downstream of the flow sensor
3. Bad Flow Sensor Board
4. Bad pump
To determine which case is causing the flow problem, view the sample pressure and sample flow functions on
the front panel. If the sample pressure is reading abnormally low, then the cause is likely a flow obstruction
upstream of the flow sensor. First, check the sample filter and make sure it is not plugged and then
systematically check all the other components upstream of the orifice to ensure that they are not obstructed.
If the sample pressure is reading normal but the sample flow is reading low then it is likely that the pump
diaphragm is worn or there is an obstruction downstream of the flow sensor.

13.2.2.5. Actual Flow Does Not Match Displayed Flow
If the actual flow measured does not match the displayed flow, but is within the limits of 720-880 cm3/min, adjust
the calibration of the flow measurement as described in Section 12.3.4.

13.2.2.6. Sample Pump
The sample pump should start immediately after the front panel power switch is turned ON. With the Sample
Inlet plugged, the test function PRES should read about 10 in-Hg for a pump that is in good condition. The pump
needs rebuilding if the reading is above 10 in-Hg. If the test function SAMP FL is greater than 10 cm3/min there
is a leak in the pneumatic lines.

13.3. CALIBRATION PROBLEMS
13.3.1. MISCALIBRATED
There are several symptoms that can be caused by the analyzer being miscalibrated. This condition is indicated
by out of range Slopes and Offsets as displayed through the test functions and is frequently caused by the
following:
1. Bad span gas. This can cause a large error in the slope and a small error in the offset. Delivered from
the factory, the M300E Analyzer’s slope is within ±15% of nominal. Bad span gas will cause the
analyzer to be calibrated to the wrong value. If in doubt have the span gas checked by an independent
lab.
2. Contaminated zero gas. Excess H2O can cause a positive or negative offset and will indirectly affect
the slope.
3. Dilution calibrator not set up correctly or is malfunctioning. This will also cause the slope, but not the
zero, to be incorrect. Again the analyzer is being calibrated to the wrong value.
4. Too many analyzers on the manifold. This can cause either a slope or offset error because ambient
gas with its pollutants will dilute the zero or span gas.

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13.3.2. NON-REPEATABLE ZERO AND SPAN
As stated earlier, leaks both in the M300E/EM and in the external system are a common source of unstable and
non-repeatable readings.
1. Check for leaks in the pneumatic systems as described in Section 12.3.3. Don’t forget to consider
pneumatic components in the gas delivery system outside the M300E/EM such as:
 A change in zero air source such as ambient air leaking into zero air line, or;
 A change in the span gas concentration due to zero air or ambient air leaking into the span gas line.
2. Once the instrument passes a leak check, perform a flow check (see Section 12.3.4) to make sure
adequate sample is being delivered to the sensor assembly.
3. A failing IR photo-detector may be at fault. Check the CO MEAS and CO REF test functions via the
front panel display to make sure the signal levels are in the normal range (See Appendix A) and are
quiet.
4. Confirm the sample pressure, wheel temperature, bench temperature, and sample flow readings are
correct and have steady readings.
5. Disconnect the exhaust line from the optical bench near the rear of the instrument and plug this line into
the SAMPLE inlet creating a pneumatic loop. The CO concentration (either zero or span) now must be
constant. If readings become quiet, the problem is in the external pneumatics supplies for sample gas,
span gas or zero air.
6. If pressurized span gas is being used with a zero/span valve option, make sure that the venting is
adequate.

13.3.3. INABILITY TO SPAN – NO SPAN KEY
1. Confirm that the carbon monoxide span gas source is accurate; this can be done by switching between
two span-gas tanks. If the CO concentration is different, there is a problem with one of the tanks.
2. Check for leaks in the pneumatic systems as described in Section 12.3.3.
3. Make sure that the expected span gas concentration entered into the instrument during calibration is
the correct span gas concentration and not too different from expected span value. This can be viewed
via the CONC submenu of the Sample Displays.
4. Check to make sure that there is no ambient air or zero air leaking into span gas line.

13.3.4. INABILITY TO ZERO – NO ZERO KEY
1. Confirm that there is a good source of zero air. Dilute a tank of span gas with the same amount of zero
air from two different sources. If the CO Concentration of the two measurements is different, there is a
problem with one of the sources of zero air.
2. Check for leaks in the pneumatic systems as described in 12.3.3.
3. If the analyzer has had zero/span valve options, the CO scrubber may need maintenance.
4. Check to make sure that there is no ambient air leaking into zero air line.

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13.4. OTHER PERFORMANCE PROBLEMS
Dynamic problems (i.e. problems which only manifest themselves when the analyzer is monitoring sample gas)
can be the most difficult and time consuming to isolate and resolve. The following provides an itemized list of the
most common dynamic problems with recommended troubleshooting checks and corrective actions.

13.4.1. TEMPERATURE PROBLEMS
Individual control loops are used to maintain the set point of the absorption bench, filter wheel and IR photodetector temperatures. If any of these temperatures are out of range or are poorly controlled, the M300E/EM will
perform poorly.

13.4.1.1. Box or Sample Temperature
BOX TEMPERATURE
The box temperature sensor is mounted to the motherboard and cannot be disconnected to check its resistance.
Rather check the BOX TEMP signal using the SIGNAL I/O function under the DIAG Menu (See Section 7.3).
This parameter will vary with ambient temperature, but at ~30oC (6-7° above room temperature) the signal
should be ~1450 mV.
SAMPLE TEMPERATURE
The Sample Temperature should closely track the bench temperature. If it does not, locate the sensor, which is
located at the midpoint of the optical bench in a brass fitting. Unplug the connector labeled “Sample”, and
measure the resistance of the thermistor; at room temperature (25°C) it should be ~30K Ohms, at operating
temperature, 48°C, it should be ~ 12K Ohms

13.4.1.2. Bench Temperature
There are three possible failures that could cause the Bench temperature to be incorrect.
1. The heater mounted to the bottom of the Absorption bench is electrically shorted or open.
 Check the resistance of the two heater elements by measuring between pin 2 and 4 (~76 Ohms), and
pin 3 and 4 (~330 Ohms), of the white five-pin connector just below the sample temperature sensor
on the Bench (pin 1 is the pointed end).
2. Assuming that the I2C bus is working and that there is no other failure with the relay board, the solidstate relay (K2) on the relay board may have failed.
 Using the BENCH_HEATER parameter under the signal I/O function, as described above, turn on
and off K2 (D3 on the relay board should illuminate as the heater is turned on).
 Check the AC voltage present between pin 2 and 4, for a 100 or 115 VAC model, and pins 3 and 4,
for a 220-240 VAC model.

CAUTION
ELECTRICAL SHOCK HAZARD
Hazardous Voltages are present during this test
3. If the relay has failed there should be no change in the voltage across pins 2 and 4 or 3 and 4. Note:
K2 is in a socket for easy replacement.
4. If K2 checks out OK, the thermistor temperature sensor located on the optical bench near the front of
the instrument could be at fault.
 Unplug the connector labeled “Bench”, and measure the resistance of the thermistor.

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 At room temperature it should have approximately 30K Ohms resistance; near the 48oC set point it should
have ~12K ohms.

13.4.1.3. GFC Wheel Temperature
Like the bench heater above there are three possible causes for the GFC Wheel temperature to have failed.
1. The wheel heater has failed.
 Check the resistance between pins 1 and 4 on the white five-pin connector just below the sample
temperature sensor on the bench (pin 1 is the pointed end).
 It should be approximately 275 ohms.
2. Assuming that the I2C bus is working and that there is no other failure with the relay board; the solidstate relay (K1) on the relay board may have failed.
 Using the WHEEL_HEATER parameter under the signal I/O function, as described above, turn on
and off K1 (D2 on the relay board should illuminate as the heater is turned on).
 Check the AC voltage present between pin 1 and 4.

CAUTION
ELECTRICAL SHOCK HAZARD
Hazardous Voltages are present during this test
3. If the relay has failed there should be no change in the voltage across pins 1 and 4.
 K1 is socketed for easy replacement.
4. If K1 checks out OK, the thermistor temperature sensor located at the front of the filter wheel assembly
may have failed.
5. Unplug the connector labeled “Wheel”, and measure the resistance of the thermistor. The resistance
near the 68°C set point is ~5.7k ohms.

13.4.1.4. IR Photo-Detector TEC Temperature
If the PHT DRIVE test parameter described in Table 12-3 is out of range there are four possible causes of failure.
1. The screws retaining the IR photo detector to the absorption bench have become loose.
 Carefully tighten the screws, hand-tight and note whether, after the analyzer has come up to
operating temperature, whether the PHT DRIVE voltage has returned to an acceptable level.
2. The two large transistor-type devices mounted to the side of the Absorption Bench have come loose
from the bench.
 Tighten the retaining screws and note whether there is an improvement in the PHT DRIVE voltage.
3. The photo-detector has failed. Contact the factory for instructions.
4. The sync demodulator circuit board has failed. Contact the factor for instructions.

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13.4.2. EXCESSIVE NOISE
Noise is continuously monitored in the TEST functions as the STABIL reading and only becomes meaningful
after sampling a constant gas concentration for at least 10 minutes. Compare the current STABIL reading with
that recorded at the time of manufacture (included in the M300E/EM Final Test and Validation Data Sheet,P/N
04271 shipped with the unit from Teledyne API).
1. The most common cause of excessive noise is leaks. Leak check and flow check the instrument
described in Section 12.3.3 and 12.3.4.
2. Detector failure – caused by failure of the hermetic seal or over-temperature due to poor heat sinking of
the detector can to the optical bench.
 In addition to increased noise due to poor signal-to-noise ratio, another indicator of detector failure is
a drop in the signal levels of the CO MEASURE signal and CO REFERENCE signal.
3. Sync/Demod Board failure. There are many delicate, high impedance parts on this board. Check the
CO MEAS and CO REF Test Functions via the Front Panel Display.
4. The detector cooler control circuit can fail for reasons similar to the detector itself failing. Symptoms
would be a change in MR RATIO Test Function when zero air is being sampled.
5. Also check the SIGNAL I/O parameter PHT DRIVE.
 After warm-up, and at 25oC ambient, if PHT DRIVE < 4800 mV, the cooler is working properly.
 If PHT DRIVE is > 4800 mV there is a malfunction.
6. The +5 and 15 VDC voltages in the M300E/EM are provided by switching power supplies.
 Switch mode supplies create DC outputs by switching the input AC waveform at high frequencies.
 As the components in the switcher age and degrade, the main problem observed is increased noise
on the DC outputs.
 If a noisy switcher power supply is suspected, attach an oscilloscope to the DC output test points
located on the top right hand edge of the Relay board.
 Look for short period spikes > 100 mV p-p on the DC output.

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13.5. SUBSYSTEM CHECKOUT
The preceding of this manual discussed a variety of methods for identifying possible sources of failures or
performance problems within the analyzer. In most cases this included a list of possible causes. This describes
how to determine individually determine if a certain component or subsystem is actually the cause of the problem
being investigated.

13.5.1. AC MAINS CONFIGURATION
The analyzer is correctly configured for the AC mains voltage in use if:
1. The Sample Pump is running.
2. The GFC Wheel motor is spinning. LED’s D1 & D2 (located on the sync/demod PCA) should be
flashing.
3. If incorrect power is suspected, check that the correct voltage and frequency is present at the line input
on the rear panel.
 If the unit is set for 230 VAC and is plugged into 115VAC, or 100VAC the sample pump will not start,
and the heaters will not come up to temperature.
 If the unit is set for 115 or 100 VAC and is plugged into a 230 VAC circuit, the circuit breaker built into
the ON/OFF Switch on the Front Panel will trip to the OFF position immediately after power is
switched on.

13.5.2. DC POWER SUPPLY
If you have determined that the analyzer’s AC mains power is working, but the unit is still not operating properly,
there may be a problem with one of the instrument’s switching power supplies. The supplies can have two faults,
namely no DC output, and noisy output.
To assist tracing DC Power Supply problems, the wiring used to connect the various printed circuit assemblies
and DC Powered components and the associated test points on the relay board follow a standard color-coding
scheme as defined in the following table.

Table 13-6:

288

DC Power Test Point and Wiring Color Codes

NAME

TEST POINT#

TP AND WIRE COLOR

Dgnd

Black

+5V

Red

Agnd

Green

+15V

Blue

-15V

Yellow

+12R

Purple

+12V

Orange

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A voltmeter should be used to verify that the DC voltages are correct per the values in the table below, and an
oscilloscope, in AC mode, with band limiting turned on, can be used to evaluate if the supplies are producing
excessive noise (> 100 mV p-p).
Table 13-7:

DC Power Supply Acceptable Levels

CHECK RELAY BOARD TEST POINTS

POWER
SUPPLY
ASSY

VOLTAGE

PS1

PS1
PS1

FROM TEST POINT

TO TEST POINT

MIN V

MAX V

4.8

5.25

NAME

Dgnd

+15

Agnd

+15

13.5

16V

-15

Agnd

-15V

-14V

-16V

PS1

Agnd

Dgnd

-0.05

0.05

PS1

Chassis

Dgnd

Chassis

N/A

-0.05

0.05

PS2

+12

+12V Ret

+12V

11.75

12.5

PS2

Dgnd

+12V Ret

Dgnd

-0.05

0.05

13.5.3. I2C BUS
Operation of the I2C bus can be verified by observing the behavior of DS6 and DS7 on the motherboard and D1
on the relay board in conjunction with the performance of the front panel display. Assuming that the DC power
supplies are operating properly and the wiring from the motherboard to the keyboard, and the wiring from the
keyboard to the relay board, is intact, the I2C bus is operating properly if:
 DS6 and DS7 on the motherboard are flashing at least once every 2 seconds and D1 on the relay board is
flashing, or;
 D1 is not flashing but pressing a key on the front panel results in a change to the display.

13.5.4. KEYBOARD/DISPLAY INTERFACE
The front panel keyboard, display and Keyboard Display Interface PCA (P/N 03975 or 04258) can be verified by
observing the operation of the display when power is applied to the instrument and when a key is pressed on the
front panel. Assuming that there are no wiring problems and that the DC power supplies are operating properly:
1. The vacuum fluorescent display is good if on power-up a “-“ character is visible on the upper left hand
corner of the display.
2. The CPU Status LED, DS5, is flashing, see Section 13.1.4.1.
3. If there is a “-“ character on the display at power-up and D1 on the relay board is flashing then the
keyboard/display interface PCA is bad.
4. If the analyzer starts operation with a normal display but pressing a key on the front panel does not
change the display, then there are three possible problems:
 One or more of the keys is bad,
 The interrupt signal between the Keyboard Display interface and the motherboard is broken, or
 The Keyboard Display Interface PCA is bad.

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13.5.5. RELAY BOARD
The relay board PCA (P/N 04135) can be most easily checked by observing the condition of the its status LED’s
on the relay board, as described in Section 13.1.4.3, and the associated output when toggled on and off through
signal I/O function in the diagnostic menu, see Section 13.1.3.
1. If the front panel display responds to key presses and D1 on the relay board is NOT flashing then either
the wiring between the Keyboard and the relay board is bad, or the relay board is bad.
2. If D1 on the relay board is flashing and the status indicator for the output in question (heater power,
valve drive, etc.) toggles properly using the signal I/O function, then the associated control device on
the relay board is bad.
 Several of the control devices are in sockets and can be easily replaced.
 The table below lists the control device associated with a particular function:
Table 13-8:

Relay Board Control Devices

FUNCTION

CONTROL
DEVICE

IN SOCKET

Wheel Heater

Yes

Bench Heater

Yes

Spare AC Control

Yes

IZS Valves

Yes

IR Source Drive

The IR source drive output can be verified by measuring the voltage at J16 with the IR source disconnected. It
should be 11.5± 0.5 VDC.

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13.5.6. SENSOR ASSEMBLY
13.5.6.1. Sync/Demodulator Assembly
To verify that the Sync/Demodulator Assembly is working, follow the procedure below:
1. Verify that D1 and D2 are flashing.
 If not check the opto pickup assembly, Section 13.5.6.3 and the GFC Wheel drive, Section 13.5.6.4.
 If the wheel drive and opto pickup are working properly then verify that there is 2.4 ±0.1 VAC and 2.5
±0.15 VDC between digital ground and TP 5 on the sync/demod board. If not then check the wiring
between the sync/demod and opto pickup assembly (see interconnect drawing, P/N 04216). If good
then the sync/demod board is bad.
2. Verify that the IR source is operating, Section 13.5.6.5.
3. With the analyzer connected to zero air, measure between TP11 (measure) and analog ground, and
TP12 (reference) and analog ground.
 If they are similar to values recorded on the factory data sheet then there is likely a problem with the
wiring or the A/D converter.
 If they are not then either the sync demodulator board or the IR-photodetector are bad. See Section
13.4.1.4 for problems with the IR-photodetector TEC drive.

13.5.6.2. Electrical Test
The electric test function substitutes simulated signals for CO MEAS and CO REF, generated by circuitry on the
sync/demod board, for the output of the IR photo-detector. While in this mode the user can also view the same
test functions viewable from the main SAMPLE display. When the test is running, the concentration reported on
the front panel display should be 40.0 ppm. (See Section 9.6.4 to calibrate Electrical Test).

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13.5.6.3. Opto Pickup Assembly
Operation of the opto pickup PCA (P/N 04088) can be verified with a voltmeter. Measure the AC and DC voltage
between digital ground on the relay board, or keyboard and TP2 and TP4 on the sync pickup PCA. For a
working board, with the GFC motor spinning, they should read 2.4 ±0.1 VAC and 2.5 ±0.15 VDC.
Further confirmation that the pickups and motor are operating properly can be obtained by measuring the
frequency at TP2 and TP4 using a frequency counter, a digital voltmeter with a frequency counter, or an
oscilloscope per Table 13-9.
Table 13-9:

Opto Pickup Board Nominal Output Frequencies
Nominal Measured Frequency

AC Mains Freq.

TP2

TP4

50 Hz

300

60 Hz

360

13.5.6.4. GFC Wheel Drive
If the D1 and D2 on the sync demodulator board are not flashing then:
1. Check for power to the motor by measuring between pins 1 and 3 on the connector feeding the motor.
 For instruments configured for 120 or 220-240VAC there should be approximately 88 VAC for
instruments configured for 100VAC, it should be the voltage of the AC mains, approximately 100VAC.
2. Verify that the frequency select jumper, JP4, is properly set on the relay board.
 For 50 Hz operation it should be installed.
 For 60 Hz operation may either be missing or installed in a vertical orientation.
3. If there is power to the motor and the frequency select jumper is properly set then the motor is likely
bad.
 See Section 13.6.2 for instructions on removing and replacing the GFC assembly that the motor is
bolted to.

13.5.6.5. IR Source
The IR source can be checked using the following procedure:
1. Disconnect the source and check its resistance when cold.
 When new, the source should have a cold resistance of more than 1.5 Ohms but less than 3.5 Ohms.
 If not, then the source is bad.
2. With the source disconnected, energize the analyzer and wait for it to start operating.
 Measure the drive Voltage between pins 1 and 2 on the jack that the source is normally connected to;
it should be 11.5 ± 0.25 VDC.
 If not, then there is a problem with either the wiring, the relay board, or the +12V power supply.
3. If the drive voltage is correct in step 2, then remove the source from the heat sink assembly (2 screws
on top) and connect to its mating connector.
 Observe the light being emitted from the source.
 It should be centered at the bottom of the U-shaped element.
 If there is either no emission or a badly centered emission then the source is bad.

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13.5.6.6. Pressure/Flow Sensor Assembly
The pressure/flow sensor PCA, located on the top of the absorption bench, can be checked with a voltmeter
using the following procedure which, assumes that the wiring is intact, and that the motherboard and the power
supplies are operating properly:
1. For Pressure related problems:
 Measure the voltage across C1 it should be 5 ± 0.25 VDC.


If not then the board is bad.

 Measure the voltage across TP4 and TP1.


With the sample pump disabled it should be 4500 mV ±250 mV.



With the pump energized it should be approximately 200 mV less. If not, then S1, the pressure
transducer is bad, the board is bad, or there is a pneumatic failure preventing the pressure
transducer from sensing the absorption cell pressure properly.

2. For flow related problems:
 Measure the voltage across TP2 and TP1 it should be 10 ±0.25 VDC.


If not then the board is bad.



Measure the voltage across TP3 and TP1.
With proper flow (800 sccm at the sample inlet) this should be approximately 4.5V (this voltage
will vary with altitude).



With flow stopped (sample inlet blocked) the voltage should be approximately 1V.



If the voltage is incorrect, the flow sensor is bad, the board is bad or there is a leak upstream of
the sensor.

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13.5.7. MOTHERBOARD
13.5.7.1. A/D Functions
The simplest method to check the operation of the A-to-D converter on the motherboard is to use the Signal I/O
function under the DIAG menu to check the two A/D reference voltages and input signals that can be easily
measured with a voltmeter.
3. Use the Signal I/O function (see Section 13.1.3 and Appendix A) to view the value of REF_4096_MV
and REF_GND.
 If both are within 3 mV of nominal (4096 and 0), and are stable, ±0.5 mV then the basic A/D is
functioning properly. If not then the motherboard is bad.
4. Choose a parameter in the Signal I/O function such as SAMPLE_PRESSURE, SAMPLE_FLOW,
CO_MEASURE or CO_REFERENCE.
 Compare these voltages at their origin (see interconnect drawing, P/N 04215 and interconnect list,
P/N 04216) with the voltage displayed through the signal I/O function.
 If the wiring is intact but there is a large difference between the measured and displayed voltage (±10
mV) then the motherboard is bad.

13.5.7.2. Test Channel / Analog Outputs Voltage

The ANALOG OUTPUT submenu, located under the SETUP  MORE  DIAG menu is used to verify that the
M300E/EM Analyzer’s analog outputs are working properly. The test generates a signal on functioning outputs
simultaneously as shown in the following table.
Table 13-10:

Analog Output Test Function - Nominal Values Voltage Outputs

FULL SCALE OUTPUT OF VOLTAGE RANGE
(see Section 7.4.2)

100MV

10V

STEP

NOMINAL OUTPUT VOLTAGE

20 mV

0.2

40 mV

0.4

60 mV

0.6

80 mV

0.8

100

100 mV

1.0

For each of the steps the output should be within 1% of the nominal value listed in the table below except for the
0% step, which should be within 0mV ±2 mV. Make sure you take into account any offset that may have been
programmed into channel (see Section 7.4.5).
If one or more of the steps fails to be within these ranges, it is likely that there has been a failure of either or both
of the DACs and their associated circuitry on the motherboard. To perform the test connect a voltmeter to the
output in question and perform an analog output step test as follows:

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13.5.7.3. Analog Outputs: Current Loop
To verify that the analog outputs with the optional current mode output are working properly, connect a 250 ohm
resistor across the outputs and use a voltmeter to measure the output as described in Section 7.4.3.4 and then
perform an analog output step test as described in Section 13.5.7.2.
For each step the output should be within 1% of the nominal value listed in the table below.

Table 13-11:

Analog Output Test Function - Nominal Values Voltage Outputs
OUTPUT RANGE
2 -20

4 -20
NOMINAL OUTPUT VALUES

STEP

CURRENT

V(250 OHMS)

2 mA

0.5V

5.6

1.4

7.2

1.8

9.2

2.3

10.4

2.6

12.8

3.2

13.6

3.4

16.4

4.1

16.8

4.2

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V(250 OHMS)

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13.5.7.4. Status Outputs
The procedure below can be used to test the Status outputs:
1. Connect a jumper between the “D“ pin and the “” pin on the status output connector.
2. Connect a 1000 ohm resistor between the “+” pin and the pin for the status output that is being tested.
3. Connect a voltmeter between the “” pin and the pin of the output being tested (see table below).
Under the DIAG SIGNAL I/O menu (see Section 13.1.3), scroll through the inputs and outputs until you get to
the output in question. Alternately turn on and off the output noting the voltage on the voltmeter, it should vary
between 0 volts for ON and 5 volts for OFF.
Table 13-12:

296

Status Outputs Check

PIN (LEFT TO RIGHT)

STATUS

SYSTEM OK

CONC VALID

HIGH RANGE

ZERO CAL

SPAN CAL

DIAG MODE

SPARE

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13.5.7.5. Control Inputs – Remote Zero, Span
The control input bits can be tested by the following procedure:
1. Connect a jumper from the +5 pin on the Status connector to the U on the Control In connector.
pin on the Status connector to the A pin on the Control In
2. Connect a second jumper from the
connector. The instrument should switch from Sample Mode to ZERO CAL R mode.
pin on the Status connector to the B pin on the Control In
3. Connect a second jumper from the
connector. The instrument should switch from Sample Mode to SPAN CAL R mode.
4. In each case, the M300E/EM should return to Sample Mode when the jumper is removed.

13.5.8. CPU
There are two major types of failures associated with the CPU board: complete failure and a failure associated
with the Disk-On-Module on the CPU board. If either of these failures occurs, contact the factory.
1. For complete failures, assuming that the power supplies are operating properly and the wiring is intact,
the CPU is bad if on powering the instrument:
 The vacuum fluorescent display shows a dash in the upper left hand corner.
 The CPU Status LED, DS5, is not flashing. See Section 13.1.4.1.
 There is no activity from the primary RS-232 port on the rear panel even if “? ” is pressed.
 In some rare circumstances this failure may be caused by a bad IC on the motherboard, specifically
U57 the large, 44 pin device on the lower right hand side of the board. If this is true, removing U57
from its socket will allow the instrument to startup but the measurements will be incorrect.
2. If the analyzer stops part way through initialization (the vacuum fluorescent display “freezes”) then it is
likely that the DOM has been corrupted.

13.5.9. RS-232 COMMUNICATIONS
13.5.9.1. General RS-232 Troubleshooting
Teledyne API analyzers use the RS-232 communications protocol to allow the instrument to be connected to a
variety of computer-based equipment. RS-232 has been used for many years and as equipment has become
more advanced, connections between various types of hardware have become increasingly difficult. Generally,
every manufacturer observes the signal and timing requirements of the protocol very carefully.
Problems with RS-232 connections usually center around 4 general areas:
1. Incorrect cabling and connectors. See Section 3.3 for connector and pin-out information.
2. The BAUD rate and protocol are incorrectly configured. See Section 8.1.3.
3. If a modem is being used, additional configuration and wiring rules must be observed. See Section 8.2
4. Incorrect setting of the DTE-DCE Switch. Ensure that switch is set correctly. See Section 8.1.1.
5. Verify that cable (P/N 03596) that connects the serial COM ports of the CPU to J12 of the motherboard
is properly seated.

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13.5.9.2. Troubleshooting Analyzer/Modem or Terminal Operation
These are the general steps for troubleshooting problems with a modem connected to a Teledyne API analyzer.
1. Check cables for proper connection to the modem, terminal or computer.
2. Check to make sure the DTE-DCE is in the correct position as described in Section 8.1.1.
3. Check to make sure the set up command is correct. See Section 8.2.
4. Verify that the Ready to Send (RTS) signal is at logic high. The M300E/EM sets pin 7 (RTS) to greater
than 3 volts to enable modem transmission.
5. Make sure the BAUD rate, word length, and stop bit settings between modem and analyzer match. See
Section 8.2.
6. Use the RS-232 test function to send “w” characters to the modem, terminal or computer. See Section
8.2.
7. Get your terminal, modem or computer to transmit data to the analyzer (holding down the space bar is
one way); the green LED should flicker as the instrument is receiving data.
8. Make sure that the communications software or terminal emulation software is functioning properly.
Further help with serial communications is available in a separate manual “RS-232 Programming Notes”
Teledyne API P/N 013500000.

13.5.10. THE OPTIONAL CO2 SENSOR
There are Two LED’s located on the CO2 sensor PCA.

Figure 13-13: Location of Diagnostic LED’s onCO2 Sensor PCA
 Normal Operation: V8 is not lit – V9 is Blinking
 Error State: Both LED’s are blinking.
Check to make sure that the cable to the CO2 probe is properly connected.

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13.6. REPAIR PROCEDURES
This contains procedures that might need to be performed on rare occasions when a major component of the
analyzer requires repair or replacement.

13.6.1. REPAIRING SAMPLE FLOW CONTROL ASSEMBLY
The critical flow orifice is housed in the flow control assembly (Teledyne API P/N 001760400) located on the top
of the optical bench. A sintered filter protects the jewel orifice so it is unusual for the orifice to need replacing,
but if it does, or the filter needs replacement please use the following procedure (see the Spare Parts list in
Appendix B for part numbers and kits):
1. Turn off power to the analyzer.
2. Locate the assembly attached to the sample pump. See Figure 3-4.
3. Disconnect the pneumatic connection from the flow assembly and the assembly from the pump.
4. Remove the fitting and the components as shown in the exploded view below.
5. Replace the o-rings (P/N OR0000001) and the sintered filter (P/N FL0000001).
6. If replacing the critical flow orifice itself (P/N 000941000), make sure that the side with the colored
window (usually red) is facing upstream to the flow gas flow.
7. Apply new Teflon® tape to the male connector threads.
8. Re-assemble in reverse order.
9. After reconnecting the power and pneumatic lines, flow check the instrument as described in Section
12.3.4.

Pneumatic Connector, Male 1/8”
(P/N FT_70

Spring
(P/N HW_20)
Sintered Filter
(P/N FL_01)

Critical Flow Orifice
(P/N 00094100)
Make sure it is placed with the
jewel down)
O-Ring
(P/N OR_01)

Purge Housing
(P/N 000850000)

Figure 13-14: Critical Flow Restrictor Assembly Disassembly

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13.6.2. REMOVING/REPLACING THE GFC WHEEL
When removing or replacing the GFC Wheel it is important to perform the disassembly in the following order to
avoid damaging the components:
1. Turn off the analyzer.
2. Remove the top cover.
3. Open the instrument’s hinged front panel.
4. Locate the GFC Wheel/motor assembly. See Figure 3-4.
5. Unplug the following electronic components:
 The GFC Wheel housing temperature sensor
 GFC Wheel heater
 GFC Wheel motor power supply

SOURCE ASSEMBLY

SYNCHRONOUS MOTOR

THERMISTOR

HEATER

SAFETY SHIELD

Figure 13-15: Opening the GFC Wheel Housing

6. Remove the three (3) screws holding the opto-pickup printed circuit assembly to the GFC Wheel
housing.

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7. Carefully remove the opto-pickup printed circuit assembly.

Opto-Pickup

Figure 13-16: Removing the Opto-Pickup Assembly

8. Remove the four (4) screws holding the GFC Wheel motor/heat sink assembly to the GFC Wheel
housing.
9. Carefully remove the GFC Wheel motor/heat sink assembly from the GFC Wheel housing.

GFC WHEEL HOUSING

Figure 13-17: Removing the GFC Wheel Housing

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10. Remove the one (1) screw fastening the GFC Wheel/mask assembly to the GFC motor hub.

Figure 13-18: Removing the GFC Wheel

11. Remove the GFC Wheel/mask assembly.
12. Follow the previous steps in reverse order to put the GFC Wheel/motor assembly back together.

13.6.3. CHECKING AND ADJUSTING THE SYNC/DEMODULATOR, CIRCUIT
GAIN (CO MEAS)
13.6.3.1. Checking the Sync/Demodulator Circuit Gain
The M300E/EM Analyzers will operate accurately as long as the sync/demodulator circuit gain is properly
adjusted. To determine if this gain factor is correct:
1. Make sure that the analyzer is turned on and warmed up.
2. Set the analyzer display to show the STABIL or CO STB test function.
3. Apply Zero Air to Sample Inlet of the analyzer.
4. Wait until the stability reading falls below 1.0 ppm.
5. Change the analyzer display to show the CO MEAS
 The value of CO MEAS must be > 2800 mV and < 4800 mV for the instrument to operate correctly.
 Optimal value for CO MEAS is 4500 mV ± 300 mV. If it is not, adjust the value.

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13.6.3.2. Adjusting the Sync/Demodulator, Circuit Gain
To adjust the sync/demodulator circuit gain:
1. Make sure that the analyzer is turned on and warmed up.
2. Set the analyzer display to show the STABIL or CO STB test function.
3. Apply Zero Air to Sample Inlet of the analyzer.
4. Wait until the stability reading falls below 1.0 ppm.
5. Change the analyzer display to show the CO MEAS.
6. Remove the Sync/Demod Housing
 Remove the two mounting screws.
 Carefully lift the housing to reveal the sync/demod PCA.

Housing Mounting
Screws

Sync/Demod
PCA Housing
Optical Bench

Figure 13-19: Location of Sync/Demod Housing Mounting Screws

7. Adjust potentiometer VR1 until CO MEAS reads 4500 mV ± 300 mV

VR1
Adjustment Made Here

Figure 13-20: Location of Sync/Demod Gain Potentiometer

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13.6.4. DISK-ON-MODULE REPLACEMENT PROCEDURE
Replacing the Disk-on-Module (DOM) will cause loss of all DAS data; it also may cause loss of some instrument
configuration parameters unless the replacement DOM carries the exact same firmware version. Whenever
changing the version of installed software, the memory must be reset. Failure to ensure that memory is reset can
cause the analyzer to malfunction, and invalidate measurements. After the memory is reset, the A/D converter
must be re-calibrated, and all information collected in Step 1 below must be re-entered before the instrument will
function correctly. Also, zero and span calibration should be performed.
1. Document all analyzer parameters that may have been changed, such as range, auto-cal, analog
output, serial port and other settings before replacing the DOM
2. Turn off power to the instrument, fold down the rear panel by loosening the mounting screws.
3. When looking at the electronic circuits from the back of the analyzer, locate the Disk-on-Module in the
right most socket of the CPU board.
4. The DOM should carry a label with firmware revision, date and initials of the programmer.
5. Remove the nylon fastener that mounts the DOM over the CPU board, and lift the DOM off the CPU. Do
not bend the connector pins.
6. Install the new Disk-on-Module, making sure the notch at the end of the chip matches the notch in the
socket.
7. It may be necessary to straighten the pins somewhat to fit them into the socket. Press the DOM all the
way in and reinsert the offset clip.
8. Close the rear panel and turn on power to the machine.
9. If the replacement DOM carries a firmware revision, re-enter all of the setup information.

13.7. TECHNICAL ASSISTANCE
If this manual and its troubleshooting / repair sections do not solve your problems, technical assistance may be
obtained from:
Teledyne API, Customer Service,
9480 Carroll Park Drive
San Diego, California 92121-5201USA
Toll-free Phone:

800-324-5190

Phone:

858-657-9800

Fax:

858-657-9816

Email:
Website:

api-customerservice@teledyne.com
http://www.teledyne-api.com/

Before you contact Teledyne API Customer service, fill out the problem report form in Appendix C, which is also
available online for electronic submission at http://www.teledyne-api.com/forms/.

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A Primer on Electro-Static Discharge

14. A PRIMER ON ELECTRO-STATIC DISCHARGE
Teledyne API considers the prevention of damage caused by the discharge of static electricity to be extremely
important part of making sure that your analyzer continues to provide reliable service for a long time. This
section describes how static electricity occurs, why it is so dangerous to electronic components and assemblies
as well as how to prevent that damage from occurring.

14.1. HOW STATIC CHARGES ARE CREATED
Modern electronic devices such as the types used in the various electronic assemblies of your analyzer, are very
small, require very little power and operate very quickly. Unfortunately, the same characteristics that allow them
to do these things also make them very susceptible to damage from the discharge of static electricity.
Controlling electrostatic discharge begins with understanding how electro-static charges occur in the first place.
Static electricity is the result of something called triboelectric charging which happens whenever the atoms of the
surface layers of two materials rub against each other. As the atoms of the two surfaces move together and
separate, some electrons from one surface are retained by the other.
Materials
Makes
Contact

Materials
Separate

PROTONS = 3
ELECTRONS = 3

NET CHARGE = 0

Figure 14-1:

PROTONS = 3
ELECTRONS = 2

PROTONS = 3
ELECTRONS = 4

NET CHARGE = -1

NET CHARGE = +1

Triboelectric Charging

If one of the surfaces is a poor conductor or even a good conductor that is not grounded, the resulting positive or
negative charge cannot bleed off and becomes trapped in place, or static. The most common example of
triboelectric charging happens when someone wearing leather or rubber soled shoes walks across a nylon
carpet or linoleum tiled floor. With each step, electrons change places and the resulting electro-static charge
builds up, quickly reaching significant levels. Pushing an epoxy printed circuit board across a workbench, using
a plastic handled screwdriver or even the constant jostling of StyrofoamTM pellets during shipment can also build
hefty static charges.
Table 14-1: Static Generation Voltages for Typical Activities
MEANS OF GENERATION

65-90% RH

10-25% RH

1,500V

35,000V

Walking across vinyl tile

250V

12,000V

Worker at bench

100V

6,000V

Poly bag picked up from bench

1,200V

20,000V

Moving around in a chair padded
with urethane foam

1,500V

18,000V

Walking across nylon carpet

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14.2. HOW ELECTRO-STATIC CHARGES CAUSE DAMAGE
Damage to components occurs when these static charges come into contact with an electronic device. Current
flows as the charge moves along the conductive circuitry of the device and the typically very high voltage levels
of the charge overheat the delicate traces of the integrated circuits, melting them or even vaporizing parts of
them. When examined by microscope the damage caused by electro-static discharge looks a lot like tiny bomb
craters littered across the landscape of the component’s circuitry.
A quick comparison of the values in Table 14-1 with the those shown in the Table 14-2, listing device
susceptibility levels, shows why Semiconductor Reliability News estimates that approximately 60% of device
failures are the result of damage due to electro-static discharge.
Table 14-2: Sensitivity of Electronic Devices to Damage by ESD
DAMAGE SUSCEPTIBILITY VOLTAGE
RANGE

DEVICE

DAMAGE BEGINS
OCCURRING AT

CATASTROPHIC
DAMAGE AT

MOSFET

100

VMOS

1800

NMOS

100

GaAsFET

2000

EPROM

100

JFET

140

7000

SAW

150

500

Op-AMP

190

2500

CMOS

200

3000

Schottky Diodes

300

2500

Film Resistors

300

3000

This Film Resistors

300

7000

ECL

500

SCR

500

1000

Schottky TTL

500

2500

Potentially damaging electro-static discharges can occur:
Any time a charged surface (including the human body) discharges to a device. Even simple contact of a
finger to the leads of a sensitive device or assembly can allow enough discharge to cause damage. A
similar discharge can occur from a charged conductive object, such as a metallic tool or fixture.
When static charges accumulated on a sensitive device discharges from the device to another surface such
as packaging materials, work surfaces, machine surfaces or other device. In some cases, charged
device discharges can be the most destructive.
A typical example of this is the simple act of installing an electronic assembly into the connector or wiring
harness of the equipment in which it is to function. If the assembly is carrying a static charge, as it is
connected to ground a discharge will occur.
Whenever a sensitive device is moved into the field of an existing electro-static field, a charge may be
induced on the device in effect discharging the field onto the device. If the device is then momentarily
grounded while within the electrostatic field or removed from the region of the electrostatic field and
grounded somewhere else, a second discharge will occur as the charge is transferred from the device to
ground.

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14.3. COMMON MYTHS ABOUT ESD DAMAGE
I didn’t feel a shock so there was no electro-static discharge: The human nervous system isn’t able to
feel a static discharge of less than 3500 volts. Most devices are damaged by discharge levels much
lower than that.
I didn’t touch it so there was no electro-static discharge: Electro Static charges are fields whose lines of
force can extend several inches or sometimes even feet away from the surface bearing the charge.
It still works so there was no damage: Sometimes the damaged caused by electro-static discharge can
completely sever a circuit trace causing the device to fail immediately. More likely, the trace will be only
partially occluded by the damage causing degraded performance of the device or worse, weakening the
trace. This weakened circuit may seem to function fine for a short time, but even the very low voltage and
current levels of the device’s normal operating levels will eat away at the defect over time causing the
device to fail well before its designed lifetime is reached.
These latent failures are often the most costly since the failure of the equipment in which the damaged
device is installed causes down time, lost data, lost productivity, as well as possible failure and damage to
other pieces of equipment or property.
Static Charges can’t build up on a conductive surface: There are two errors in this statement.
Conductive devices can build static charges if they are not grounded. The charge will be equalized
across the entire device, but without access to earth ground, they are still trapped and can still build to
high enough levels to cause damage when they are discharged.
A charge can be induced onto the conductive surface and/or discharge triggered in the presence of a
charged field such as a large static charge clinging to the surface of a nylon jacket of someone walking up
to a workbench.
As long as my analyzer is properly installed, it is safe from damage caused by static discharges: It is
true that when properly installed the chassis ground of your analyzer is tied to earth ground and its
electronic components are prevented from building static electric charges themselves. This does not
prevent discharges from static fields built up on other things, like you and your clothing, from discharging
through the instrument and damaging it.

14.4. BASIC PRINCIPLES OF STATIC CONTROL
It is impossible to stop the creation of instantaneous static electric charges. It is not, however difficult to prevent
those charges from building to dangerous levels or prevent damage due to electro-static discharge from
occurring.

14.4.1. GENERAL RULES
Only handle or work on all electronic assemblies at a properly set up ESD station. Setting up an ESD safe
workstation need not be complicated. A protective mat properly tied to ground and a wrist strap are all that is
needed to create a basic anti-ESD workstation.
Protective Mat

Wrist Stra

Ground Point

Figure 14-2:

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Basic anti-ESD Workbench

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For technicians that work in the field, special lightweight and portable anti-ESD kits are available from most
suppliers of ESD protection gear. These include everything needed to create a temporary anti-ESD work area
anywhere.
Always wear an Anti-ESD wrist strap when working on the electronic assemblies of your analyzer.
An anti-ESD wrist strap keeps the person wearing it at or near the same potential as other grounded
objects in the work area and allows static charges to dissipate before they can build to dangerous levels.
Anti-ESD wrist straps terminated with alligator clips are available for use in work areas where there is no
available grounded plug.
Also, anti-ESD wrist straps include a current limiting resistor (usually around one meg-ohm) that protects
you should you accidentally short yourself to the instrument’s power supply.
Simply touching a grounded piece of metal is insufficient. While this may temporarily bleed off static
charges present at the time, once you stop touching the grounded metal new static charges will
immediately begin to re-build. In some conditions, a charge large enough to damage a component can
rebuild in just a few seconds.
Always store sensitive components and assemblies in anti-ESD storage bags or bins: Even when you
are not working on them, store all devices and assemblies in a closed anti-Static bag or bin. This will
prevent induced charges from building up on the device or assembly and nearby static fields from
discharging through it.
Use metallic anti-ESD bags for storing and shipping ESD sensitive components and assemblies
rather than pink-poly bags. The famous, pink-poly bags are made of a plastic that is impregnated with
a liquid (similar to liquid laundry detergent) which very slowly sweats onto the surface of the plastic
creating a slightly conductive layer over the surface of the bag.
While this layer may equalizes any charges that occur across the whole bag, it does not prevent the build
up of static charges. If laying on a conductive, grounded surface, these bags will allow charges to bleed
away but the very charges that build up on the surface of the bag itself can be transferred through the bag
by induction onto the circuits of your ESD sensitive device. Also, the liquid impregnating the plastic is
eventually used up after which the bag is as useless for preventing damage from ESD as any ordinary
plastic bag.
Anti-Static bags made of plastic impregnated with metal (usually silvery in color) provide all of the charge
equalizing abilities of the pink-poly bags but also, when properly sealed, create a Faraday cage that
completely isolates the contents from discharges and the inductive transfer of static charges.
Storage bins made of plastic impregnated with carbon (usually black in color) are also excellent at
dissipating static charges and isolating their contents from field effects and discharges.
Never use ordinary plastic adhesive tape near an ESD sensitive device or to close an anti-ESD bag.
®
The act of pulling a piece of standard plastic adhesive tape, such as Scotch tape, from its roll will
generate a static charge of several thousand or even tens of thousands of volts on the tape itself and an
associated field effect that can discharge through or be induced upon items up to a foot away.

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14.4.2. BASIC ANTI-ESD PROCEDURES FOR ANALYZER REPAIR AND
MAINTENANCE
14.4.2.1. Working at the Instrument Rack
When working on the analyzer while it is in the instrument rack and plugged into a properly grounded power
supply:
1. Attach you anti-ESD wrist strap to ground before doing anything else.
Use a wrist strap terminated with an alligator clip and attach it to a bare metal portion of the instrument
chassis.
This will safely connect you to the same ground level to which the instrument and all of its components
are connected.
2. Pause for a second or two to allow any static charges to bleed away.
3. Open the casing of the analyzer and begin work. Up to this point, the closed metal casing of your
analyzer has isolated the components and assemblies inside from any conducted or induced static
charges.
4. If you must remove a component from the instrument, do not lay it down on a non-ESD preventative
surface where static charges may lie in wait.
5. Only disconnect your wrist strap after you have finished work and closed the case of the analyzer.

14.4.2.2. Working at an Anti-ESD Work Bench
When working on an instrument of an electronic assembly while it is resting on a anti-ESD workbench:
1. Plug you anti-ESD wrist strap into the grounded receptacle of the work station before touching any items
on the work station and while standing at least a foot or so away. This will allow any charges you are
carrying to bleed away through the ground connection of the workstation and prevent discharges due to
field effects and induction from occurring.
2. Pause for a second or two to allow any static charges to bleed away.
3. Only open any anti-ESD storage bins or bags containing sensitive devices or assemblies after you have
plugged your wrist strap into the workstation.
Lay the bag or bin on the workbench surface.
Before opening the container, wait several seconds for any static charges on the outside surface of the
container to be bled away by the workstation’s grounded protective mat.
4. Do not pick up tools that may be carrying static charges while also touching or holding an ESD sensitive
device.
Only lay tools or ESD-sensitive devices and assemblies on the conductive surface of your workstation.
Never lay them down on any non-ESD preventative surface.
5. Place any static sensitive devices or assemblies in anti-static storage bags or bins and close the bag or
bin before unplugging your wrist strap.
6. Disconnecting your wrist strap is always the last action taken before leaving the workbench.

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14.4.2.3. Transferring Components from Rack to Bench and Back
When transferring a sensitive device from an installed Teledyne API analyzer to an anti-ESD workbench or back:
1. Follow the instructions listed above for working at the instrument rack and workstation.
2. Never carry the component or assembly without placing it in an anti-ESD bag or bin.
3. Before using the bag or container allow any surface charges on it to dissipate:
If you are at the instrument rack, hold the bag in one hand while your wrist strap is connected to a
ground point.
If you are at an anti-ESD workbench, lay the container down on the conductive work surface.
In either case wait several seconds.
4. Place the item in the container.
5. Seal the container. If using a bag, fold the end over and fastening it with anti-ESD tape.
Folding the open end over isolates the component(s) inside from the effects of static fields.
Leaving the bag open or simply stapling it shut without folding it closed prevents the bag from forming a
complete protective envelope around the device.
6. Once you have arrived at your destination, allow any surface charges that may have built up on the bag
or bin during travel to dissipate:
Connect your wrist strap to ground.
If you are at the instrument rack, hold the bag in one hand while your wrist strap is connected to a
ground point.
If you are at a anti-ESD workbench, lay the container down on the conductive work surface
In either case wait several seconds
7. Open the container.

14.4.2.4. Opening Shipments from Teledyne API’ Customer Service
Packing materials such as bubble pack and Styrofoam pellets are extremely efficient generators of static electric
charges. To prevent damage from ESD, Teledyne API ships all electronic components and assemblies in
properly sealed anti-ESD containers.
Static charges will build up on the outer surface of the anti-ESD container during shipping as the packing
materials vibrate and rub against each other. To prevent these static charges from damaging the components or
assemblies being shipped make sure that you:
Always unpack shipments from Teledyne API Customer Service by:
1. Opening the outer shipping box away from the anti-ESD work area.
2. Carry the still sealed anti-ESD bag, tube or bin to the anti-ESD work area.
3. Follow steps 6 and 7 of Section 14.4.2.3 above when opening the anti-ESD container at the work station.
4. Reserve the anti-ESD container or bag to use when packing electronic components or assemblies to be
returned to Teledyne API.

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14.4.2.5. Packing Components for Return to Teledyne API’s Customer Service
CAUTION – Avoid Warranty Invalidation
Failure to comply with proper anti-Electro-Static Discharge (ESD) handling and packing instructions
and Return Merchandise Authorization (RMA) procedures when returning parts for repair or calibration
may void your warranty. For anti-ESD handling and packing instructions please refer to “Packing
Components for Return to Teledyne API’s Customer Service” in the Primer on Electro-Static
Discharge section of this manual, and for RMA procedures please refer to our Website at
http://www.teledyne-api.com under Customer Support > Return Authorization.
Always pack electronic components and assemblies to be sent to Teledyne API’s Customer Service in anti-ESD
bins, tubes or bags.

CAUTION
ESD Hazard
 DO NOT use pink-poly bags.
 NEVER allow any standard plastic packaging materials to touch the electronic
component/assembly directly.
 This includes, but is not limited to, plastic bubble-pack, Styrofoam peanuts,
open cell foam, closed cell foam, and adhesive tape.
 DO NOT use standard adhesive tape as a sealer. Use ONLY anti-ESD tape.
Never carry the component or assembly without placing it in an anti-ESD bag or bin.
1. Before using the bag or container allow any surface charges on it to dissipate:
If you are at the instrument rack, hold the bag in one hand while your wrist strap is connected to a
ground point.
If you are at an anti-ESD workbench, lay the container down on the conductive work surface.
In either case wait several seconds.
2. Place the item in the container.
3. Seal the container. If using a bag, fold the end over and fastening it with anti-ESD tape.
Folding the open end over isolates the component(s) inside from the effects of static fields.
Leaving the bag open or simply stapling it shut without folding it closed prevents the bag from forming a
complete protective envelope around the device.

NOTE
If you do not already have an adequate supply of anti-ESD bags or containers available, Teledyne API’s
Customer Service department will supply them (see Section 13.7 for contact information).
Follow the instructions listed above for working at the instrument rack and workstation.

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INDEX

Index

60 Hz, 19

Baud Rate, 156
Beer-Lambert law, 1
BENCH TEMP, 69, 253
BENCH TEMP WARNING, 30, 70, 163, 251
Bench Temperature

A
Absorption Path Lengths, 212
AC Power 60 Hz, 19
AIN, 128
ALRM, 72, 129
ANALOG CAL WARNING, 30, 70
Analog Inputs, 128
Analog Outputs, 20, 45, 72, 79, 80, 108, 276,
277
AIN CALIBRATION, 128
CONC1, 32
CONC2, 32
Configuration & Calibration, 72, 111, 113, 114, 115,
117, 119, 121, 123, 125, 128
Automatic, 11, 72, 117
Manual-Current Loop, 120, 122
Manual-Voltage, 118
Electrical Connections, 20
Electronic Range Selection, 82, 112
Output Loop Back, 230
Over-Range Feature, 123
Pin Assignments, 20
Recorder Offset, 125
Reporting Range, 33, 72
Test Channel, 126
BENCH TEMP, 126
CHASSIS TEMP, 126
CO MEASURE, 126
CO REFERFENCE, 126
NONE, 126
O2 CELL TEMP, 126
PHT DRIVE, 126
SAMPLE FLOW, 126
SAMPLE PRESS, 126
SAMPLE TEMP, 126
WHEEL TEMP, 126
User Configurable, 40

AOUT Calibration Feature, 114
APICOM, 1, 2, 88, 90, 100, 104, 133, 165, 169,
245
and Ethernet, 145, 146
and iDAS System, 89, 93, 98, 100, 101, 103, 104
Interface Example, 165
Software Download, 104, 165

ATIMER, 89, 93, 95
AutoCal, 40, 46, 67, 69, 72, 114, 167, 180, 181,
182, 203
AZERO, 163

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Control, 222

BENCH_HEATER, 259
BOX TEMP, 30, 69, 163, 253, 267
BOX TEMP WARNING, 30, 70, 163, 251
brass, 25, 168, 267

C
CAL Key, 39, 71
CALDAT, 90
Calibration
AIN, 128
Analog Ouputs, 11, 72, 117
Analog Outputs
Current Loop, 120, 122
Voltage, 118
Initial Calibration
Basic Configuration, 32

Calibration Checks, 170, 177
Calibration Gasses, 168
Span Gas, 2, 12, 26, 39, 48, 50, 52, 54, 173, 178
Dilution Feature, 87
Standard Reference Materials (SRM’s)
CO Span Gas, 24
Zero Air, 2, 12, 26, 46, 48, 50, 52, 54, 168

CALS Key, 39, 71, 175
CALZ Key, 71, 175
CANNOT DYN SPAN, 30, 70, 163, 251
CANNOT DYN ZERO, 30, 70, 163, 251
Carbon Monoxide, 1, 3, 46, 207
Carrying Strap/Handle, 44
CATS 7 cable, 55
CLOCK_ADJ, 78, 106
CO Concentration Alarms, 129
CO MEAS, 69, 187, 214, 215, 219, 224, 225,
229, 238, 239, 244, 245, 253, 266, 269, 273,
284, 285
CO REF, 68, 69, 187, 214, 215, 219, 224, 225,
229, 238, 239, 253, 266, 269, 273
CO2, 21, 23, 24, 32, 37, 59, 60, 61, 67, 69, 85,
106, 110, 160, 163, 167, 169, 186, 195, 196,
197, 203, 280
CO2 OFFSET, 69

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CO2 Sensor, 21, 23, 24, 37, 59, 60, 69, 163,
169, 195, 196
Calibration
Procedure, 197
Setup, 195
Span Gas Concentration, 195
Troubleshoting, 280

CO2 Sensor Option

Pneumatic Set Up for Calibration, 195

CO2 SLOPE, 69
COMM Ports, 23, 131, 133, 140, 156
and iDAS System, 101
Baud Rate, 132
COM1, 158
RS232, 55, 141
COM2, 55, 56, 130, 133, 141, 144, 145, 158
Communication Modes, 133, 145
DCE & DTE, 130
Machine ID, 136, 142
Parity, 133, 156
RS-485, 134
testing, 135

COMM PORTS
Default Settings, 131

CONC, 90, 93
CONC ALRM1 WARNING, 70, 163
CONC ALRM2 WARNING, 70, 163
CONC Key, 39, 106
CONC VALID, 21, 278
CONC_PRECISION, 106
CONC1, 32
CONC2, 32
Concentration Field, 11, 29
CONFIG INITIALIZED, 30, 70, 251
Contact, 292
Continuous Emission Monitoring (CEM), 87
Control Inputs, 22, 67, 230, 279
Pin Assignments, 22
Electrical Connections, 22

CPU, 28, 30, 55, 59, 61, 70, 73, 78, 79, 88,
110, 128, 131, 141, 145, 187, 188, 219, 221,
224, 227, 228, 229, 230, 231, 233, 235, 236,
237, 238, 249, 251, 253, 255, 256, 258, 271,
279
Analog to Digital Converter, 30, 70, 110
Status LED, 256

Critical Flow Orifice, 58, 90, 217, 218, 247, 248,
251, 260, 264, 281
Current Loop Outputs, 45, 120, 122
Manual Calibration, 120

D
Dark Calibration, 167, 187, 226, 230
DAS_HOLD_OFF, 106
data acquisition. See iDAS System
DATA INITIALIZED, 30, 70, 251
DB-25M, 55, 153
314

DB-9F, 55, 153
DC Power, 22
DCPS, 163
Default Settings
COMM Ports, 131
Ethernet, 146
Hessen Protocol, 159, 163
iDAS System, 89
VARS, 106

DHCP, 23, 28, 31, 146
DIAG AIO, 108
DIAG AOUT, 108
DIAG ELEC, 108
DIAG FCAL, 108
DIAG I/O, 108
DIAG Mode, 67
DIAG OPTIC, 108
DIAG TCHN, 108
Diagnostic Menu (DIAG), 4, 72, 74, 76, 276
Ain Calibrated, 110, 128
Analog I/O
Aout Calibration Configuration, 110
AOUT Calibration Configuration, 115
AOUTCalibrated Configuration, 114
Conc_Out_1, 110
Conc_Out_2, 110
Conc_Out_3, 110
Analog I/O Configuration, 108, 111, 113, 114, 115, 117,
119, 121, 123, 125, 128
ANALOG OUTPUT (Step Test), 276
Analog Output Step Test, 108
Dark Calikbration, 108
Electrical Test, 108
Flow Calibration, 108
Pressure Calibration, 108
SIGNAL I/O, 108, 255
Test Chan Ouptut, 108
Test Output, 110

Dilution Ratio, 64, 87
Set Up, 34

Disk –on-Module, 221
Display Precision, 106
DUAL, 81, 83, 84, 167
DYN_SPAN, 106
DYN_ZERO, 106
Dynamic Span, 106
Dynamic Zero, 106

E
Electric Test, 273
Electric Test Switch, 227
Electrical Connections, 18–23
AC Power, 18, 43
Analog Outputs, 20, 80
Current Loop, 120
Voltage Ranges, 118
Control InputS, 22
Ethernet, 23, 31, 56, 57, 141, 145

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Ethernet, 1, 4
Modem, 153, 154
Multidrop, 23
Serial/COMM Ports, 23, 131
Status Outputs, 20

Electrical Test, 108
Electro-Static Discharge, 4, 291
Enable TCP Ports, 146
ENTR Key, 3, 72, 76, 100, 170
Environmental Protection Agency(EPA), 4, 24,
40
Calibration, 71
EPA Calibration, 4
EPA Equivalency, 3

Ethernet, 1, 28, 136, 145, 146
and Multidrop, 57
Baud Rate, 145
Configuration, 145–51
Manual, 148
Property Defaults, 146
using DHCP, 146
DHCP, 23, 28, 31, 146
Enable TCP Ports, 146
Gateway IP Address, 146, 148, 150
Hostname, 146
HOSTNAME, 151
Instrument IP Address, 146, 148, 150
Subnet Mask, 146, 148, 150
TCP Port 1, 146
TCP Port 2, 146

Motor, 227, 228, 230, 270, 274, 282, 283
Temperature, 30, 69, 70, 126, 268
GFC Wheel Troubleshooting, 282
Schmidt Triggers, 223
Temperature Control, 222

Gas Inlets
Pressure Span, 12
Sample, 12
Span2, 12

Gas Outlets
Exhaust, 12, 27, 48, 50, 52, 54
Vent, 12

Gateway IP Address, 146, 148, 150
GFC Wheel, 1

H
Hessen Flags
Internal Span Gas Generator, 163

Hessen Protocol, 133, 156, 158, 159, 163
Activation, 157
and Reporting Ranges, 160
Default Settings, 159
Download Manual, 156
Gas List, 161, 162
GAS LIST, 160
ID Code, 164
Latency Period, 156
response Mode, 159
Setup Parameters, 156
Status Flag
Default Settings, 163
Modes, 163
Unassigned Flags, 163
Unused Bits, 163
Warnings, 163
Status Flags, 163
types, 158

Exhaust Gas, 12, 217
Exhaust Gas Outlet, 12, 27, 48, 50, 52, 54
EXIT Key, 72
EXITZR, 95
External Pump, 43

INDEX

HIGH RANGE

FEP, 25, 168
Final Test and Validation Data Sheet, 31, 32,
186, 269
Flash Chip, 221
Front Panel, 11, 56
Concentration Field, 11, 29
Display, 11, 29, 108, 126
Keypad Definition Field, 11
Message Field, 11
Mode Field, 11, 29
Status LED’s, 11, 29

FRONT PANEL WARN, 30, 251

G
Gas Filter Correlation, 1, 9, 43, 211, 212, 213,
222, 227, 231, 238, 252, 283, 284
GFC Wheel, 27, 212, 213, 222, 223, 225, 226, 227,
245, 252, 253, 254, 256, 257, 273, 274, 282, 283,
284
Heater, 227, 231
Light Mask, 215, 223, 224

04288D DCN5752

REMOTE, 22

Hold Off Period, 39
HOSTNAME, 146, 151

I
I2C bus, 219, 227, 228, 231, 235, 236, 237,
251, 252, 253, 256, 258, 267, 268, 271
Power Up Circuit, 231

I2c Link To The Relay Pca, 237
iDAS System, 4, 11, 29, 30, 32, 67, 69, 70, 72,
79, 86, 88–105, 106, 169, 181, 186, 211,
221, 234, 239, 245, 251, 260
and APICOM, 104, 105
and RS-232, 105
and Terminal Emulation Programs, 105
Channel Names, 94
Channels, 89, 91, 105
CALDAT, 90
CONC, 90
PNUNTC, 90
Compact Data Report, 103

315

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Teledyne API – Technical Manual - Model 300E Family CO Analyzers

HOLD OFF, 29, 89, 102, 106
Holdoff Period, 39
Number of Records, 89, 100
Parameters, 89, 96, 105
CONC, 93
NXCNC1, 93
PMTDET, 89
Precision, 96
Report Period, 89, 99, 103
Sample Mode
AVG, 96, 97, 98, 99
INST, 96, 97, 98, 99
MAX, 96
MIN, 96, 97, 98, 99
SDEV, 96, 97, 98, 99
Sample Period, 99
Starting Date, 103
Store Number of Samples, 96, 97, 99
Triggerning Events, 89, 95
ATIMER, 89, 93, 95
EXITZR, 95
SLPCHG, 90, 95
WTEMPW, 95

Infrared Radiation (IR), 1, 30, 32, 40, 59, 69,
70, 126, 187, 206, 211, 212, 213, 214, 215,
222, 223, 224, 225, 226, 227, 228, 229, 231,
239, 245, 251, 252, 253, 254, 259, 266, 268,
272, 273, 274
Instrument IP Address, 146, 148, 150
Interferents, 32
Internal Pneumatics
Basic Model 300E/EM, 260
Basic Model 300E/EM with CO2 Sensor Option, 61
M300E/EM
Basic Configuration, 15
M300E/EM WITH OPTIONAL CO2 SENSOR, 263
M300E/EM WITH OPTIONAL O2 SENSOR, 263
M300E/EM with Zero/Span Valves, 47, 261
M300E/EM with Zero/Span Valves with Internal
Scrubber, 51, 53, 262
M300E/EM with Zero/Span/Shutoff Valves, 49, 261

Internal Pump, 8, 25, 28, 90, 188, 216, 217,
218, 231, 246, 247, 251, 264, 265, 270, 275,
281
Internal Span Gas Generator
AutoCal, 181
Warning Messages, 30

Internal Zero Air (IZS), 8, 12, 23, 47, 49, 51, 53,
203, 204, 264, 272
Gas Flow Problems, 260

K
Keyboard/Display Interface Electronics, 235
Display Controller, 237
Display Data Decoder, 237
I2C Interface Chip, 237
Key-Depress-Detect Circuit, 236
Keypad Decoder, 236
Troubleshooting, 271
Watch Dog:, 237

316

Keypad Definition Field, 11

L
LO CAL A [type], 67
Local Area Network (LAN), 23, 31, 56, 136,
141, 145, 146, 148

M
Machine ID, 136, 142
Maintenance Schedule, 90
Measure Reference Ratio, 214
Menu Keys
CAL, 39, 71
CALS, 39, 71, 175
CALZ, 71, 175
CONC, 39, 106
ENTR, 3, 72, 76, 100, 170
EXIT, 72

MENUS
AUTO, 81, 85, 167
DUAL, 81, 83, 84, 167
SNGL, 33, 81, 82

Message Field, 11
Modbus, 4, 146
Mode Field, 11, 29
Modem, 55, 153, 154
Troubleshooting, 280

Motherboard, 30, 110, 120
M-P CAL, 67
MR Ratio, 69, 244, 245, 253, 269
Multidrop, 23, 55, 57, 133, 136, 141, 142, 156

N
National Institute of Standards and Technology
(NIST)
Standard Reference Materials (SRM), 24
CO, 24

NXCNC1, 93

O
O2, 7, 20, 21, 24, 37, 57, 58, 67, 69, 70, 80,
106, 110, 126, 160, 163, 167, 169, 186, 191,
192, 193, 217, 260
O2 CELL TEMP, 69
O2 CELL TEMP WARNING, 70
O2 OFFSET, 69
O2 sensor, 20, 21, 24, 37, 58, 69, 70, 80, 126,
163, 169, 191, 193, 217, 260
O2 SENSOR, 193
CALIBRATION
Procedure, 194
SETUP, 191
Span Gas Concentration, 192

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O2 Sensor Option

RANGE1, 69, 160

O2 SLOPE, 69
OFFSET, 69, 120, 125, 170, 244, 245, 254
Operating Modes, 108

RANGE2, 69, 160

Pneumatic Set Up for Calibration, 191

Calibration Mode, 163
Calibration Mode
LO CAL A [type], 67
M-P CAL, 67
SPAN CAL [type], 67
ZERO CAL [type], 67
DIAG Mode, 67
Diagnostic Mode (DIAG), 108
SAMPLE A1, 67
Sample Mode, 11, 67, 106, 180
Secondaru Setup, 72
SETUP [X.X], 67

Optic Test, 108
Optical Bench, 222, 229, 230, 248
Layout, 15

Optional Sensors
CO2
INTERNAL PNEUMATICS, 263
O2
INTERNAL PNEUMATICS, 263

P
Particulate Filter, 60, 64, 218, 245, 246, 251
PHOTO TEMP WARNING, 30, 70, 251
PHT DRIVE, 69, 244, 245, 254
Pneumatic Set Up, 23
Basic Model 300E/EM
Bottled Gas, 25, 170
Gas Dilution Calibrator, 26, 171
Calibration
M300E/EM with CO2 Sensor, 195
M300E/EM with O2 Sensor, 191
Calibration Gases, 23
M300E/EM with Zero/Span Valves, 48, 175
M300E/EM with Zero/Span Valves with Internal
Scrubber, 52, 176
M300E/EM with Zero/Span/Shutoff and Internal
Scrubber Option, 54, 176
M300E/EM with Zero/Span/Shutoff Valves, 50, 175

PNUMTC, 90
Predictive Diagnostics, 165
Using iDAS System, 90

PRES, 69, 244, 245, 247, 253
Pressure Span Inlet, 12
PRESSURE SPAN inlet, 47
PTEF, 27, 48, 50, 52, 54
PTFE, 8, 25, 168, 200, 246
Pump
Sample, 43

R
Rack Mount, 43
RANGE, 69, 110, 160, 253
04288D DCN5752

INDEX

AUTO, 85
AUTO, 85

REAR BOARD NOT DET, 30, 70, 163, 251
Rear Panel, 12
Analog Outputs, 80
Basic M200E, 12

Recorder Offset, 125
Relay Board
Status LED's, 258
Troubleshooting, 272

RELAY BOARD WARN, 30, 70, 251
relay PCA, 30
Reporting Range, 33, 71, 72, 79, 82, 83, 85
Configuration, 72, 79
Dilution Feature, 87
Modes, 87
AUTO, 85
DUAL, 83
SNGL, 82
Upper Span Limit, 82, 84, 87

RJ45, 55
RS-232, 1, 4, 8, 23, 46, 55, 56, 57, 67, 68, 89,
101, 103, 105, 130, 131, 133, 136, 139, 140,
141, 142, 143, 145, 156, 165, 199, 203, 219,
221, 229, 233, 279, 280
Activity Indicators, 131
DCE – DTE Switch, 12
DCE & DTE, 130

RS-485, 7, 56, 67, 130, 133, 134, 136, 141,
143, 144, 219, 221, 229, 233

S
Safety Messages
Electric Shock, 16, 18, 267, 268
General, 16, 19, 23, 25, 44, 120, 249
Qualiified Personnel, 249

SAMPLE A1, 67
SAMPLE FL, 69, 253
Sample Flow Sensor, 218
SAMPLE FLOW WARN, 30, 70, 163, 251
Sample Gas Line, 26, 48, 50, 52, 54
SAMPLE INLET, 12
Sample Mode, 11, 28, 67, 106, 180, 201, 279
SAMPLE PRESS WARN, 30, 70, 163, 251
Sample Pressure Sensor, 218
SAMPLE TEMP, 69, 70, 163, 253, 267
SAMPLE TEMP WARN, 30, 70, 163
Schmidt Triggers, 223
Scubber
Zero Air, 168

Sensor Inputs, 229, 275
Bench Temperature, 230
Box Temperature, 230
CO Measure And Reference, 229
Sample Pressure And Flow, 229

317

INDEX

Teledyne API – Technical Manual - Model 300E Family CO Analyzers

Sample Temperature, 229
Thermistor Interface, 229
Wheel Temperature, 230

SERIAL I/O
BENCH_HEATER, 267
CO_MEASURE, 269
CO_REFERENCE, 269
PHT_DRIVE, 268, 269
WHEEL_HEATER, 268

Serial I/O Ports
Modem, 153, 154
Multidrop, 23, 55, 57, 133, 136, 141, 142
RS-232, 4, 23, 55, 56, 57, 72, 89, 101, 103, 165
RS-485, 56, 133

SETUP [X.X], 67
Shutoff Valve
Span Gas, 49

SLOPE, 69, 170, 244, 245, 254
SLPCHG, 90, 95
SNGL, 33, 81, 82
SOURCE WARNING, 30, 70, 163
SPAN CAL, 21, 47, 49, 51, 53, 67, 167, 244,
278, 279
Remote, 22

SPAN CAL [type], 67
Span Gas, 2, 12, 24, 26, 27, 32, 39, 46, 48, 49,
50, 51, 52, 54, 71, 87, 129, 163, 167, 169,
173, 175, 178, 181, 192, 195, 206, 247, 251,
254, 264, 265, 266
Dilution Feature, 87
Standard Reference Materials (SRM’s) )
CO Span Gas, 24

Span2 Inlet, 12
Specifications, 3, 7
STABIL, 69, 244, 245, 253, 269, 284, 285
STABIL_GAS, 106
stainless steel, 25, 168
Standard Temperature and Pressure, 86
Status LED's, 228
CO2 Sensor, 280
CPU, 256
Relay Board, 258
Sync/Demod Board, 257, 270

Status Outputs, 85, 230
Electrical Connections, 20
Pin Assignments, 21

Subnet Mask, 146, 148, 150
SYNC, 163
Sync/Demod Board, 187, 224, 225, 226, 230,
239, 251, 252, 253, 273
Photo-Detector Temperature Control, 226
Status LED’s, 257, 270
Troubleshooting, 273, 284, 285

T
TCP Port 1, 146
TCP Port 2, 146
Teledyne Contact Information
Email Address, 43, 286
Fax, 43, 286
Phone, 43, 286
Technical Assistance, 286
Website, 43, 286
Hessen Protocol Manual, 156
Software Downloads, 104

Terminal Mode, 137
Command Syntax, 138
Computer mode, 133, 137
INTERACTIVE MODE, 137

Test Channel, 108, 110, 126
BENCH TEMP, 126
CHASSIS TEMP, 126
CO MEASURE, 126
CO REFERENCE, 126
NONE, 126
O2 CELL TEMP, 126
PHT DRIVE, 126
SAMPLE FLOW, 126
SAMPLE PRESS, 126
SAMPLE TEMP, 126
WHEEL TEMP, 126

Test Function
RANGE, 110, 160

Test Functions, 68, 110, 126, 276, 277
BENCH TEMP, 69, 253
BOX TEMP, 30, 69, 163, 253, 267
CO MEAS, 69, 244, 245, 284, 285
CO REF, 69
CO2 OFFSET, 69
CO2 SLOPE, 69
Defined, 69
MR Ratio, 69, 244, 245, 253, 269
O2 CELL TEMP, 69
O2 OFFSET, 69
O2 SLOPE, 69
OFFSET, 69, 170, 244, 245, 254
PHT DRIVE, 69, 244, 245, 254
PRES, 69, 244, 245, 247, 253
RANGE, 69, 160, 253
RANGE1, 69, 160
AUTO, 85
RANGE2, 69, 160
AUTO, 85
SAMPLE FL, 69, 253
SAMPLE TEMP, 69, 70, 163, 253, 267
SLOPE, 69, 170, 244, 245, 254
STABIL, 69, 244, 245, 253, 269, 284, 285
TIME, 69, 182, 253
WHEEL TEMP, 69, 253

TIME, 69, 182, 253

System
Default Settings, 89

SYSTEM OK, 21, 278
SYSTEM RESET, 30, 70, 163

318

U
Units of Measurement, 33, 86, 87
Volumetric Units vs Mass Units, 86

04288D DCN5752

Teledyne API – Technical Manual - Model 300E Family CO Analyzers
BOX TEMP WARNING, 30, 70, 163, 251
CANNOT DYN ZERO, 30, 70, 163, 251
CONC ALRM1 WARNING, 70, 163
CONC ALRM2 WARNING, 70, 163
CONFIG INITIALIZED, 30, 70, 251
DATA INITIALIZED, 30, 70, 251
DCPS, 163
FRONT PANEL WARN, 30, 251
O2 CELL TEMP WARNING, 70
PHOTO TEMP WARNING, 30, 70, 251
REAR BOARD NOT DET, 30, 70, 163, 251
RELAY BOARD WARN, 30, 70, 251
SAMPLE FLOW WARN, 30, 70, 163, 251
SAMPLE PRESS WARN, 30, 70, 163, 251
SAMPLE TEMP WARN, 30, 70, 163
SOURCE WARNING, 30, 70, 163
SYNC, 163
SYSTEM RESET, 30, 70, 163
Wheel Temp WARNING, 30, 70, 163

V
Valve Options, 12, 177, 227
Calibration Using, 175, 178
Internal Span Gas Generator
AutoCal, 181
Hessen Flags, 163
Warning Messages, 30
Shutoff Valve
Span Gas, 49
Zero/Span, 266
Zero/Span Valve w/ Internal Scrubber, 266
Zero/Span Valves
Internal Pneumatics, 47, 261
Pneumatic Set Up, 48, 175
Zero/Span Valves with Internal Scrubber
Internal Pneumatics, 51, 262
Pneumatic Set Up, 52, 176
Zero/Span with Remote Contact Closure, 180
Zero/Span/Shutoff Valves
Internal Pneumatics, 49, 261
Pneumatic Set Up, 50, 175
Zero/Span/Shutoff Valves with Internal Scrubber
Internal Pneumatics, 53, 262
Pneumatic Set Up, 54, 176

INDEX

Warranty, 3
Watch Dog Circuit, 228, 237
WHEEL TEMP, 69, 253
WHEEL TEMP WARNING, 30, 70, 163
WTEMPW, 95

VARS Menu, 72, 74, 76, 78, 89, 102, 106
Variable Default Values, 106
Variable Names
CLOCK_ADJ, 106
CONC_PRECISION, 106
DAS_HOLD_OFF, 106
DYN_SPAN, 106
DYN_ZERO, 106
STABIL_GAS, 106

Vent Outlet, 12
Ventilation Clearance, 18
Venting, 27, 48, 50, 52, 54
Exhaust Line, 27, 48, 50, 52, 54
Sample Gas, 27, 48, 50, 52, 54
Span Gas, 27, 48, 50, 52
Zero Air, 27, 48, 50, 52

W
Warm-up Period, 29
Warnings, 29
ANALOG CAL WARNING, 30, 70
AZERO, 163
BENCH TEMP WARNING, 163
BENCH TEMP WARNING, 30, 70, 251

04288D DCN5752

Z
Zero Air, 2, 12, 23, 24, 26, 27, 32, 40, 46, 48,
49, 50, 51, 52, 53, 54, 71, 167, 168, 175,
181, 198, 203, 204, 205, 206, 245, 253, 254,
264, 265, 266, 269, 273
ZERO CAL, 21, 22, 47, 49, 51, 53, 67, 244,
278, 279
Remote, 22

ZERO CAL [type], 67
Zero/Span Valves, 180
Internal Pneumatics, 47, 261
Pneumatic Set Up, 48, 175

Zero/Span Valves with Internal Scrubber
Internal Pneumatics, 51, 262
Pneumatic Set Up, 52, 176

Zero/Span/Shutoff Valves
Internal Pneumatics, 49, 261
Pneumatic Set Up, 50, 175

Zero/Span/Shutoff Valves with Internal
Scrubber
Internal Pneumatics, 53, 262
Pneumatic Set Up, 54, 176

319

Technical Manual - Model 300E Family CO Analyzers

This page intentionally left blank.

320

04288D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A - Version Specific Software Documentation

APPENDIX A - Version Specific Software Documentation
APPENDIX A-1: SOFTWARE MENU TREES, REVISION L.8 ................................................................................. 2
APPENDIX A-2: SETUP VARIABLES FOR SERIAL I/O .......................................................................................... 8
APPENDIX A-3: WARNINGS AND TEST FUNCTIONS ......................................................................................... 21
APPENDIX A-4: SIGNAL I/O DEFINITIONS.......................................................................................................... 26
APPENDIX A-5: DAS TRIGGERS AND PARAMETERS ........................................................................................ 31
APPENDIX A-6: TERMINAL COMMAND DESIGNATORS .................................................................................... 34
APPENDIX A-7: MODBUS REGISTER MAP.......................................................................................................... 35

04188D DCN5752

A-1

APPENDIX A-1: Software Menu Trees, Revision L.8

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-1: Software Menu Trees, Revision L.8

SAMPLE

TEST1

LOW
A1: User Selectable Range2
A2: User Selectable Range2
A3: User Selectable Range2
A4: User Selectable Range2
STABIL
CO MEAS
CO REF
MR RATIO
PRES
SAMPLE FL
SAMP TEMP
BENCH TEMP
WHEEL TEMP
BOX TEMP
O2 CELL TEMP2
PHT DRIVE
CO SLOPE
CO OFFSET
CO SLOPE
CO OFFSET
C2O SLOPE3
CO2 OFFSET3
O2 SLOPE3
O2 OFFSET3
TIME

ZERO

O23 CO23

HIGH

SPAN

LOW

O23

CALS4

HIGH

O23

CO23

CONC

LOW

SPAN

CO2

CFG

ACAL4

DAS

MSG1
CO23

HIGH

CLR

SETUP

Press to
cycle
through the
active
warning
messages.
Press to
clear an
active
warning
messages.

CONC

PRIMARY SETUP
MENU

RANGE

Only appears when warning messages are active.
2
Range displays vary depending on user selections (see Section 6.13.5)
3
Only appears if analyzer is equipped with O2 or CO2 sensor option.
4
Only appears if analyzer is equipped with Zero/Span or IZS valve options. COMM

PASS

CLK

SECONDARY
SETUP MENU

VARS

DIAG

ALAR5

Only appears on T300 and M300EM units with alarm option enabled.

Figure A-1:

A-2

CALZ4

CAL

Basic Sample Display Menu

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-1: Software Menu Trees, Revision L.8

SAMPLE

ACAL1

CFG

DAS

PASS

RNGE

Go to iDAS
Menu Tree

MODE

ACAL menu and its submenus only appear
if analyzer is equipped with
Zero/Span or IZS valve options.
2
Only appears if Dilution option is active
3
Only appears if Hessen protocol is active.
4
CO2 and O2 modes only appear if analyzer
is equipped with the related sensor option.
5
DOES NOT appear if one of the three CO2
O2 modes is selected

OFF
TIME

UNIT

DISABLED
ZERO
ZERO-SPAN
SPAN
CO2 ZERO4
CO2 ZR-SP4
CO2 SPAN4
O2 ZERO4
O2 ZERO-SP4
O2 SPAN4

PPM

DIL3

DATE

Go to
SECONDARY SETUP
Menu Tree

MGM

SET

ON
TIMER ENABLE
DURATION
CALIBRATE

OFF
5

RANGE TO CAL

LOW5
Figure A-2:

04188D DCN5752

SEQ 1)
MODEL TYPE AND NUMBERSEQ 2)
SEQ 3)
PART NUMBER
SERIAL NUMBER
SOFTWARE REVISION
LIBRARY REVISION
iCHIP SOFTWARE REVISION
HESSEN PROTOCOL
PREV
REVISION2
CPU TYPE & OS REVISION
DATE FACTORY
CONFIGURATION SAVED

CLK

STARTING DATE
STARTING TIME
DELTA DAYS
DELTA TIME

HIGH5

Primary Setup Menu (Except DAS)

A-3

APPENDIX A-1: Software Menu Trees, Revision L.8

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)
SETUP

SAMPLE

ACAL1

CFG

DAS

PASS

RNGE

VIEW
PREV

EDIT

ENTER PASSWORD: 818

CONC
CALDAT
PNUMTC
STBZRO
STBSPN
TEMP

NX10

Selects the data point to be viewed

Cycles through
parameters assigned
to this iDAS channel

CONC
CALDAT
PNUMTC
STBZRO
STBSPN
TEMP

VIEW
PV10

SET>

NAME
EVENT
PARAMETERS
REPORT PERIOD
NUMBER OF RECORDS
RS-232 REPORT
CHANNEL ENABLE
CAL MODE

NX10

Create/edit the name of the channel

Sets the time lapse between each
report

ON
PREV

INS

DEL

Cycles through list of
currently active
parameters for this
channel

YES

EDIT

SAMPLE MODE

PRNT

PRECISION
2

Figure A-3:

INST

AVG

NO
Sets the maximum number of
records recorded by this channel

A-4

PRNT

YES2

Cycles through list of available &
currently active parameters for this
channel

CLK

MIN

MAX

ACAL menu only appear if analyzer is equipped with
Zero/Span or IZS valve options.

Editing an existing DAS channel will erase any
data stored on the channel options.
Changing the event for an existing DAS channel
DOES NOT erase the data stored on the
channel.

Primary Setup Menu  DAS Submenu
04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Figure A-4:

04188D DCN5752

APPENDIX A-1: Software Menu Trees, Revision L.8

Secondary Setup Menu  COMM and VARS Submenus

A-5

APPENDIX A-1: Software Menu Trees, Revision L.8

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

SAMPLE
CFG

ACAL

DAS

RNGE PASS

SETUP
MORE

CLK

COMM
HESN2

INET1

COM1

COM2

ENTER PASSWORD: 818

RESPONSE MODE

BCC

TEXT

CO, 310, REPORTED

EDIT

Go to COMM / VARS Menu
Tree

GAS LIST

INS

O2, 312 REPORTED

STATUS FLAGS

DEL
YES

CO2, 311, REPORTED

EDIT

PRNT

GAS TYPE
GAS ID
REPORTED

ON
OFF
2

E-series: Only appears if Ethernet Option is installed.
Only appears if HESSEN PROTOCOL mode is ON.

Figure A-5:
A-6

Go to DIAG Menu Tree

CMD

DIAG

VARS

Set/create unique gas ID number

CO
CO2
O2

Secondary Setup Menu  Hessen Protocol Submenu
04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-1: Software Menu Trees, Revision L.8
SETUP

SAMPLE
CFG

ACAL

DAS

RNGE PASS

CLK

DIAG
COMM

VARS

ENTER PASSWORD: 818

SIGNAL I/
O

DARK
ELECTRICAL
CALIBRATION
TEST

ANALOG
CONFIGURATION

ANALOG
OUTPUT
Press ENTR
to start test

EXT ZERO CAL
EXT SPAN CAL
REMOTE RANGE HI
SYNC OK
MAINT MODE
LANG2 SELECT
SAMPLE LED
CAL LED
FAULT LED
AUDIBLE BEEPER
ELEC TEST
DARK CAL
ST SYSTEM OK
ST CONC VALID
ST HIGH RANGE
ST ZERO CAL
ST SPAN CAL
ST DIAG MODE
ST CONC ALARM 15
ST CONC ALARM 25
SET AUTO REF5
SET CO2 CAL4
SET O2 CAL4
ST SYSTEM OK2
RELAY WATCHDOG
WHEEL HTR
SENCH HTR
O2 CELL HEATER4
CAL VALVE
SPAN VALVE
ZERO SCRUB VALVE
IR SOURCE ON

Press ENTR
to start test

Correspond to analog Output A1 – A4 on back of
analyzer

Only appears if one of the voltage ranges is selected.

Manual adjustment menu only appears if either the
Auto Cal feature is OFF or the range is set for
CURRent.

Only appears if the related sensor option is installed.

Only appears in T300M and M300EM

Press ENTR
to start test

AOUTS CALIBRATED

INS

DEL
YES

Cycles through list of
already programmed
display sequences

DATA OUT 11
DATA OUT 21
DATA OUT 31
DATA OUT 41

EDIT

PRNT

NEXT
CO
CO24
O24

DISPLAY DATA

AIN CALIBRATED

OFF

DISPLAY
SEQUENCE
CONFIGURATION

EDIT

CAL

RANGE

OVER
RANGE
RANGE OFFSET2
ON
OFF

Sets the
degree of
offset

AUTO2 CALIBRATED
CAL

0.1V

10V

OUTPUT
ON

OFF

Auto Cal

CURR

U100

UP10

Manual Cal3

DATA

SCALE

UPDATE
ENTR

CAL2

Figure A-6:
04188D DCN5752

FLOW
CALIBRATION

PRESSURE
CALIBRATION

30 INTERNAL ANALOG
to VOLTAGE SIGNALS
55 (see Appendix A)

DOWN

DISPLAY DURATION
Sets the scale
width of the
reporting range.

Cycles through
the list of iDAS
data types.

DN10

Sets time lapse
between data updates
on selected output

D100

DIAG Menu
A-7

APPENDIX A-2: Setup Variables For Serial I/O

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-2: Setup Variables For Serial I/O
Table A-1: T300/T300M and M300E/EM Setup Variables, Revision L.8

Setup Variable

Numeric
Units

Default
Value

Value
Range

Description

Low Access Level Setup Variables (818 password)
DAS_HOLD_OFF

Minutes

0.5–20

Duration of DAS hold off period.

CONC_PRECISION

—

AUTO,

Number of digits to display to the
right of the decimal point for
concentrations on the display.

0,
1,
2,
3,
4
REM_CAL_DURATION
STABIL_GAS

Minutes

1–120

Duration of automatic calibration
initiated from TAI protocol.

—

CO 0

CO,

Selects gas for stability
measurement.

CO2
O2

DYN_ZERO

—

OFF

ON, OFF

ON enables remote dynamic
zero calibration; OFF disables it.

DYN_SPAN

—

OFF

ON, OFF

ON enables remote dynamic
span calibration; OFF disables it.

CLOCK_ADJ

Sec./Day

-60–60

Time-of-day clock speed
adjustment.

Medium Access Level Setup Variables (929 password)
LANGUAGE_SELECT

—

ENGL 0

ENGL,
SECD,

Selects the language to use for
the user interface.

EXTN
MAINT_TIMEOUT

Hours

0.1–100

Time until automatically
switching out of softwarecontrolled maintenance mode.

CONV_TIME

—

33 MS 0

33 MS,

Conversion time for
measure/reference detector
channel.

66 MS,
133 MS,
266 MS,
533 MS,
1 SEC,
2 SEC
CO_DWELL

Seconds

0.2

0.1–30

Dwell time before taking
measure or reference sample.

CO_SAMPLE

Samples

1–30

Number of samples to take in
measure or reference mode.

PRE_FILT_SIZE 5, 19

Samples

1–50

Moving average pre-filter size.

FILT_SIZE

Samples

750,

1–1000

Moving average filter size.

720 9, 12
200 3, 8
1000 19, 23

A-8

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable
FILT_ASIZE

Numeric
Units
Samples

Default
Value
48,

APPENDIX A-2: Setup Variables For Serial I/O

Value
Range

Description

1–1000

Moving average filter size in
adaptive mode.

1–1000

Absolute change to trigger
adaptive filter.

1–100

Percent change to trigger
adaptive filter.

0–180

Delay before leaving adaptive
filter mode.

20 3, 8,
40 20, 22
FILT_DELTA

PPM

4,
0.7

15 3, 8
0.15 9, 12
0.4 19, 23
0.2 20, 22
FILT_PCT

10
5

FILT_DELAY

Seconds

20, 22, 23

90,
72 20, 22

FILT_ADAPT

—

ON, OFF

ON enables adaptive filter; OFF
disables it.

CO2_DWELL 10

Seconds

0.1

0.1–30

Dwell time before taking each
sample.

CO2_FILT_ADAPT 10

—

ON, OFF

ON enables CO2 adaptive filter;
OFF disables it.

CO2_FILT_SIZE 10

Samples

1–300

CO2 moving average filter size.

Samples

1–300

CO2 moving average filter size in
adaptive mode.

CO2_FILT_DELTA 10

0.01–10

Absolute CO2 conc. change to
trigger adaptive filter.

CO2_FILT_PCT 10

0.1–100

Percent CO2 conc. change to
trigger adaptive filter.

CO2_FILT_DELAY 10

Seconds

0–300

Delay before leaving CO2
adaptive filter mode.

CO2_DIL_FACTOR 10

—

0.1–1000

Dilution factor for CO2. Used only
if is dilution enabled with
FACTORY_OPT variable.

O2_DWELL 14

Seconds

0.1–30

Dwell time before taking each
sample.

O2_FILT_ADAPT 14

—

ON, OFF

ON enables O2 adaptive filter;
OFF disables it.

O2_FILT_SIZE 14

Samples

1–500

O2 moving average filter size in
normal mode.

O2_FILT_ASIZE 14

Samples

1–500

O2 moving average filter size in
adaptive mode.

O2_FILT_DELTA 14

0.1–100

Absolute change in O2
concentration to shorten filter.

O2_FILT_PCT 14

0.1–100

Relative change in O2
concentration to shorten filter.

O2_FILT_DELAY 14

Seconds

0–300

Delay before leaving O2 adaptive
filter mode.

O2_DIL_FACTOR 14

—

0.1–1000

Dilution factor for O2. Used only if
is dilution enabled with
FACTORY_OPT variable.

CO2_FILT_ASIZE

04188D DCN5752

A-9

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable
USER_UNITS

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Numeric
Units
—

Default
Value
PPM 0

Value
Range
PPB,
PPM,

Description
Concentration units for user
interface.

UGM,
MGM
% 4, 5, 9, 18
PPM

3, 8

MGM 3, 8
NEG_CONC_SUPPRESS

—

OFF,
ON

DIL_FACTOR

—

DARK_CAL_DURATION

Seconds

180,
60

OFF, ON

ON pegs negative concentrations
at zero; OFF permits negative
concentrations

0.1–1000

Dilution factor. Used only if is
dilution enabled with
FACTORY_OPT variable.

10–600

Duration of dark cal. First twothirds is stabilization period; final
third is measure period.

DARK_MEAS_MV

-1000–1000

Dark offset for measure reading.

DARK_REF_MV

-1000–1000

Dark offset for reference reading.

CO2_COMP_ENABLE

—

OFF

ON, OFF

ON enables CO2 compensation;
OFF disables it.

CO2_COMP_CONC

0–20

CO2 concentration to
compensate for.

SOURCE_DRIFT_ENAB 21

—

OFF

ON, OFF

ON enables source drift
compensation; OFF disables it.

SOURCE_DRIFT 21

PPB/Day

-500–500

Source drift compensation rate of
change.

CO_CONST1

—

8000,

100–50000

CO calculation constant.

0–10

CO calculation constant.

15,20,22,23

500

78.8

9,12

3020 18
500 4,9,12
39600 8
40000 3
CO_CONST2

—

0.2110
0.356

20,22,23

0.367 15
1.458

9,12

1.4625 18
1.448 4
0.192 8
0.187 3
0.1196 24
ET_MEAS_GAIN

—

0.0001–9.9999

Electrical test gain factor for
measure reading.

ET_REF_GAIN

—

0.0001–9.9999

Electrical test gain factor for
reference reading.

A-10

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable

Numeric
Units

APPENDIX A-2: Setup Variables For Serial I/O

Default
Value

Value
Range

Description

ET_TARGET_DET

4375

0–5000

Target detector reading during
electrical test.

ET_TARGET_CONC

PPM

40,

1–9999.99

Target concentration during
electrical test.

0.1–50000

D/A concentration range during
electrical test.

1–500

Standard temperature for
temperature compensation.

1–50

Standard pressure for pressure
compensation.

0–100

Optical bench temperature set
point and warning limits.

0–100

Wheel temperature set point and
warning limits.

30–70

O2 sensor cell temperature set
point and warning limits.

400
ET_CONC_RANGE

Conc.

3, 8

50,
5000

STD_TEMP

ºK

321

STD_PRESS

"Hg

28.5,

3, 8

28.7 ,
28.8 12, 18,
28.1 4
BENCH_SET

ºC

48
Warnings:
43–53

WHEEL_SET

ºC

68,
62 19,23
Warnings:
63–73,
57–67 19,23

O2_CELL_SET 14

ºC

50
Warnings:
45–55

STD_O2_CELL_TEMP 14

ºK

323

1–500

Standard O2 cell temperature for
temperature compensation.

ZERO_APPLY_IN_CAL 5

—

OFF, ON

ON applies auto-reference offset
and dilution factor during
zero/span calibration;
OFF disables both.
(Only applicable if
ZERO_ENABLE is ON.)

ZERO_DWELL 3, 5, 8

ZERO_SAMPLES 3, 5, 8

Seconds,

1–60,

Minutes 5

1–30 5

Samples

15,

Dwell time after closing or
opening zero scrubber valve.

1–1000

Number of zero samples to
average.

1–100

Auto-zero offset moving average
filter size.

0–5

Minimum auto-zero ratio allowed;
must be greater than this value
to be valid.

0.5–5

Calibrated auto-zero ratio.

750 ,
1000 19
ZERO_FILT_SIZE

3, 5, 8

Samples

5,
1

ZERO_LIMIT

3, 5, 8

Ratio

1.2,
1.15

3, 8

15
ZERO_CAL 3, 5, 8

04188D DCN5752

Ratio

1.18

A-11

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Numeric
Units

Default
Value

Value
Range

Description

CO_TARG_ZERO1

Conc.

-100.00–
999.99

Target CO concentration during
zero offset calibration of range 1.

CO_TARG_MID1_1

Conc.

50 5,

0.01–9999.99

Target CO concentration during
mid-point #1 calibration of range
1.

0.01–9999.99

Target CO concentration during
mid-point #2 calibration of range
1.

0.01–9999.99

Target CO concentration during
internal span calibration of range
1.

0.001–999.999

CO slope for range 1.

300
CO_TARG_MID2_1

Conc.

50 5,
300

CO_SPAN1

Conc.

40,
400 3, 8

CO_SLOPE1

—

CO_OFFSET1

—

-10–10

CO offset for range 1.

CAL_BOX_TEMP1

ºC

0–100

Calibrated box temperature for
range 1.

CO_TARG_ZERO2

Conc.

-100.00–
999.99

Target CO concentration during
zero offset calibration of range 2.

CO_TARG_MID1_2

Conc.

50 5,

0.01–9999.99

Target CO concentration during
mid-point #1 calibration of range
2.

0.01–9999.99

Target CO concentration during
mid-point #2 calibration of range
2.

0.01–9999.99

Target CO concentration during
internal span calibration of range
2.

0.001–999.999

CO slope for range 2.

300
CO_TARG_MID2_2

Conc.

50 5,
300

CO_SPAN2

Conc.

40,
400

CO_SLOPE2

—

3, 8

CO_OFFSET2

—

-10–10

CO offset for range 2.

CAL_BOX_TEMP2

ºC

0–100

Calibrated box temperature for
range 2.

CO2_TARG_MID1_CONC

Target CO2 concentration during
mid-point #1 calibration.

CO2_TARG_MID2_CONC

0.1–1000,
0.1–2000 16

0.1–1000,

800

CO2_TARG_SPAN_CON
C 10
CO2_SLOPE

6,
800 16

CO2_OFFSET

—

0.1–2000

Target CO2 concentration during
mid-point #2 calibration.

0.1–2000 16

Target CO2 concentration during
span calibration.

0.5–5

CO2 slope.

0.1–1000,

CO2 offset.

-10–10,
-100–100

O2_TARG_SPAN_CONC 14

Target O2 concentration during
span calibration.

20.95

0.1–100

O2_SLOPE 14

—

0.5–2

O2 slope.

O2_OFFSET 14

-10–10

O2 offset.

A-12

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable
RANGE_MODE

Numeric
Units
—

APPENDIX A-2: Setup Variables For Serial I/O

Default
Value
SNGL 0

Value
Range
SNGL,

Description
Range control mode.

DUAL,
AUTO
CONC_RANGE1

Conc.

50,

0.1–50000

D/A concentration range 1.

0.1–50000

D/A concentration range 2.

0.1–500,

CO2 concentration range.

200 ,
500 3, 8
CONC_RANGE2

Conc.

50,
6

200 ,
500 3, 8
CO2_RANGE

0.1–2000
O2_RANGE

RS232_MODE

100

0.1–500

O2 concentration range.

BitFlag

0–65535

RS-232 COM1 mode flags. Add
values to combine flags.
1 = quiet mode
2 = computer mode
4 = enable security
8 = enable hardware
handshaking
16 = enable Hessen protocol 11
32 = enable multi-drop
64 = enable modem
128 = ignore RS-232 line errors
256 = disable XON / XOFF
support
512 = disable hardware FIFOs
1024 = enable RS-485 mode
2048 = even parity, 7 data bits, 1
stop bit
4096 = enable command prompt
8192 = even parity, 8 data bits, 1
stop bit
16384 = enable dedicated
MODBUS ASCII protocol
32678 = enable dedicated
MODBUS RTU or TCP protocol
16384 = enable TAI protocol 17

BAUD_RATE

—

115200

300,

RS-232 COM1 baud rate.

1200,
2400,
4800,
9600,
19200,
38400,
57600,
115200

04188D DCN5752

A-13

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Numeric
Units

Default
Value

Value
Range

Description

MODEM_INIT

—

“AT Y0 &D0
&H0 &I0 S0=2
&B0 &N6 &M0
E0 Q1 &W0” 0

Any character
in the allowed
character set.
Up to 100
characters
long.

RS-232 COM1 modem
initialization string. Sent verbatim
plus carriage return to modem on
power up or manually.

RS232_MODE2

BitFlag

0–65535

RS-232 COM2 mode flags.
(Same settings as
RS232_MODE.)

BAUD_RATE2

—

19200 0

300,

RS-232 COM2 baud rate.

1200,
2400,
4800,
9600,
19200,
38400,
57600,
115200
MODEM_INIT2

—

“AT Y0 &D0
&H0 &I0 S0=2
&B0 &N6 &M0
E0 Q1 &W0” 0

Any character
in the allowed
character set.
Up to 100
characters
long.

RS-232 COM2 modem
initialization string. Sent verbatim
plus carriage return to modem on
power up or manually.

RS232_PASS

Password

940331

0–999999

RS-232 log on password.

MACHINE_ID

300,

0–9999

Unique ID number for instrument.

Any character
in the allowed
character set.
Up to 100
characters
long.

RS-232 interface command
prompt. Displayed only if enabled
with RS232_MODE variable.

320
COMMAND_PROMPT

A-14

—

“Cmd> ” 0

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable
TEST_CHAN_ID

Numeric
Units
—

Default
Value
NONE 0

APPENDIX A-2: Setup Variables For Serial I/O

Value
Range
NONE,

Description
Diagnostic analog output ID.

CO
MEASURE,
CO
REFERENC
E,
VACUUM
PRESSURE,
SAMPLE
PRESSURE,
SAMPLE
FLOW,
SAMPLE
TEMP,
BENCH
TEMP,
WHEEL
TEMP,
O2 CELL
14
TEMP ,
CHASSIS
TEMP,
PHT DRIVE,
TEMP4 5
REMOTE_CAL_MODE

—

LOW 0

LOW,
HIGH,
CO2 10,

CO range or other gas to
calibrate during contact closure
or Hessen calibration.

O2 14
PASS_ENABLE

—

OFF

ON, OFF

ON enables passwords; OFF
disables them.

STABIL_FREQ

Seconds

1–300

Stability measurement sampling
frequency.

120 19, 23
STABIL_SAMPLES

Samples

2–40

Number of samples in
concentration stability reading.

PHOTO_TEMP_SET

2500

0–5000

Photometer temperature warning
limits. Set point is not used.

0–100

Sample pressure warning limits.
Set point is not used.

Warnings:
250–4750
SAMP_PRESS_SET

In-Hg

29.92
Warnings:
15–32

04188D DCN5752

A-15

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable
SAMP_FLOW_SET

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Numeric
Units
cc/m

Default
Value
800,

Value
Range

Description

0–5000

Sample flow warning limits. Set
point is not used.

0.001–100

Slope term to correct sample
flow rate.

0.1–2

Maximum vacuum pressure /
sample pressure ratio for valid
sample flow calculation.

0–100

Purge pressure warning limits.
Set point is not used.

0–100

Sample temperature warning
limits. Set point is not used.

0–100

Internal box temperature warning
limits. Set point is not used.

0–100

Internal box temperature #2 /
oven set point and warning limits.

0.5–30

Internal box temperature #2/oven
control cycle period.

0–100

Internal box temperature #2/oven
PID proportional coefficient.
Proportional band is the
reciprocal of this setting.

0–100

Internal box temperature #2/oven
PID integral coefficient.

2000 13
1800 5,19
Warnings:
640–960,

1400–2200
5,19

1500–2500 13
SAMP_FLOW_SLOPE

—

1
4.5

VAC_SAMP_RATIO

—

5,19

0.53,
0.61

PURGE_PRESS_SET

PSIG

7.5
Warnings:
2.5–12.5

SAMP_TEMP_SET

ºC

30
Warnings:
10.1–100

BOX_SET

ºC

30
Warnings:
5–48

BOX2_SET ,

ºC

OVEN_SET 19,23

30
46 19,23
Warnings:
25–35
41–51

BOX2_CYCLE 5,
OVEN_CYCLE

1
0.5

—

19,23

BOX2_DERIV 5,
OVEN_DERIV

1/ºC

19,23

BOX2_INTEG 5,
OVEN_INTEG

19,23

BOX2_PROP 5,
OVEN_PROP

Seconds

19,23

0.1
0.02

19,23

—

0–100

Internal box temperature #2/oven
PID derivative coefficient.

Seconds

0.5–30

Optical bench temperature
control cycle period.

0–100

100V optical bench temperature
PID proportional coefficient.
Proportional band is the
reciprocal of this setting.

0–100

100V optical bench temperature
PID integral coefficient.

19,23

BENCH_CYCLE

15 19,23
BENCH_PROP

1/ºC

5
1.5

BENCH_INTEG

—

19,23

0.5
1.5 19,23

A-16

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable
BENCH_DERIV

Numeric
Units
—

Default
Value
2

APPENDIX A-2: Setup Variables For Serial I/O

Value
Range
0–100

100V optical bench temperature
PID derivative coefficient.

0–100

200V optical bench temperature
PID proportional coefficient.
Proportional band is the
reciprocal of this setting.

0–100

200V optical bench temperature
PID integral coefficient.

0–100

200V optical bench temperature
PID derivative coefficient.

0.5–30

Wheel temperature control cycle
period.

0–100

100V wheel temperature PID
proportional coefficient.
Proportional band is the
reciprocal of this setting.

0–100

100V wheel temperature PID
integral coefficient.

0–100

100V wheel temperature PID
derivative coefficient.

0–100

200V wheel temperature PID
proportional coefficient.
Proportional band is the
reciprocal of this setting.

0–100

200V wheel temperature PID
integral coefficient.

0–100

200V wheel temperature PID
derivative coefficient.

0 19,23
BENCH_PROP2

1/ºC

5
0.75 19,23

BENCH_INTEG2

—

0.5
0.75

BENCH_DERIV2

—

19,23

2
0 19,23

WHEEL_CYCLE

Seconds

4
2

Description

4,9,12,18

8 19,23
WHEEL_PROP

1/ºC

1
0.3

WHEEL_INTEG

—

19,23

0.135
0.035 4,9,12,18
0.06 19,23

WHEEL_DERIV

—

2
0 19,23

WHEEL_PROP2

1/ºC

1
0.1

WHEEL_INTEG2

—

19,23

0.135
0.035

4,9,12,18

0.01 19,23
WHEEL_DERIV2

—

2
0

19,23

Seconds

0.5–30

O2 cell temperature control cycle
period.

O2_CELL_PROP 14

—

0–10

O2 cell PID temperature control
proportional coefficient.

O2_CELL_INTEG 14

—

0.1

0–10

O2 cell PID temperature control
integral coefficient.

O2_CELL_DERIV 14

—

0 (disabled)

0–10

O2 cell PID temperature control
derivative coefficient.

BOX_TEMP_GAIN

PPB/DegC

0–100

Gain factor for box temperature
compensation of concentration.

O2_CELL_CYCLE

TPC_ENABLE

—

OFF, ON

ON enables temperature/
pressure compensation; OFF
disables it.

CONC_LIN_ENABLE

—

OFF, ON

ON enables concentration
linearization; OFF disables it.

STAT_REP_PERIOD 17

Seconds

0.5–120

TAI protocol status message
report period.

04188D DCN5752

A-17

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable
SERIAL_NUMBER

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Numeric
Units
—

Default
Value

—

Description

“00000000 ”

Any character
in the allowed
character set.
Up to 100
characters
long.

Unique serial number for
instrument.

HIGH 0

HIGH,

Front panel display intensity.

DISP_INTENSITY

Value
Range

MED,
LOW,
DIM
I2C_RESET_ENABLE

—

OFF, ON

ON enables automatic reset of
the I2C bus in the event of
communication failures; OFF
disables automatic reset.

CLOCK_FORMAT

—

“TIME=%H:%
M:%S”

Any character
in the allowed
character set.
Up to 100
characters
long.

Time-of-day clock format flags.
Enclose value in double quotes
(") when setting from the RS-232
interface.
“%a” = Abbreviated weekday
name.
“%b” = Abbreviated month name.
“%d” = Day of month as decimal
number (01 – 31).
“%H” = Hour in 24-hour format
(00 – 23).
“%I” = Hour in 12-hour format (01
– 12).
“%j” = Day of year as decimal
number (001 – 366).
“%m” = Month as decimal
number (01 – 12).
“%M” = Minute as decimal
number (00 – 59).
“%p” = A.M./P.M. indicator for
12-hour clock.
“%S” = Second as decimal
number (00 – 59).
“%w” = Weekday as decimal
number (0 – 6; Sunday is 0).
“%y” = Year without century, as
decimal number (00 – 99).
“%Y” = Year with century, as
decimal number.
“%%” = Percent sign.

ALARM_TRIGGER
REF_SDEV_LIMIT

A-18

3,4

Cycles

1–100

Concentration alarm trigger
sensitivity adjustment.

0.1–500

Reference detector standard
deviation must be below this limit
to switch out of startup mode.

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Setup Variable
REF_SOURCE_LIMIT

Numeric
Units
mV

Default
Value
3000 (not
used)

APPENDIX A-2: Setup Variables For Serial I/O

Value
Range

Description

1–5000

Reference source warning limits.
Set point is not used.

0–65535

Factory option flags. Add values
to combine flags.

Warnings:
1100–4800,
25–4800 3, 4, 15
FACTORY_OPT

BitFlag

512,
768 5

1 = enable dilution factor
2 = zero/span valves installed
4 = enable conc. alarms
8 = enable linearity adjustment
factor
16 = display units in
concentration field
32 = enable software-controlled
maintenance mode
64 3, 5 = span valve installed
128 = enable switch-controlled
maintenance mode
256 = compute only offset during
zero calibration
512 = 220 V A/C power
1024 = non-zero offset
calibration (linearity adjustment
must also be enabled)
2048 = enable Internet option

4096 = use “old” style numeric
data entry menus when editing
conc. table
8192 = locate high range and
zero cal. status outputs on relays

04188D DCN5752

A-19

APPENDIX A-2: Setup Variables For Serial I/O

Setup Variable

Numeric
Units

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Default
Value

Value
Range

Enclose value in double quotes (") when setting from the RS-232 interface

Multi-range modes

Hessen protocol

T300H, M300EH

T360, M360E

T300U, M300EU

Fixed range special

iChip option (E-Series)

T300M, M300EM

GFC7000E

CO2 option

Must power-cycle instrument for these options to take effect

T360U, M360EU

Riken Keiki special

O2 option

T320, M320E

CO2 PPM sensor

TAI protocol

T360M, M360EM

T300U2, M300EU2

T320U, M320EU

Source drift compensation option

GFC7002EU

T320U2, M320EU2

N2O compensation option

A-20

Description

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-3: Warnings and Test Functions

APPENDIX A-3: Warnings and Test Functions
Table A-2: T300/T300M and M300E/EM Warning Messages, Revision L.8

Name 1

Message Text

Description

Warnings
WSYSRES

SYSTEM RESET

Instrument was power-cycled or the CPU
was reset.

WDATAINIT

DATA INITIALIZED

Data storage was erased.

WCONFIGINIT

CONFIG INITIALIZED

Configuration storage was reset to factory
configuration or erased.

WCONCALARM1

CONC ALARM 1 WARN

Concentration limit 1 exceeded.

WCONCALARM2

CONC ALARM 2 WARN

Concentration limit 2 exceeded.

WSOURCE

SOURCE WARNING

Reference reading minus dark offset
outside of warning limits specified by
REF_SOURCE_LIMIT variable.

4, 5

AZERO WARN 1.001

Auto-reference ratio below limit specified
by ZERO_LIMIT variable.

WBENCHTEMP

BENCH TEMP WARNING

Bench temperature outside of warning
limits specified by BENCH_SET variable.

WWHEELTEMP

WHEEL TEMP WARNING

Wheel temperature outside of warning
limits specified by WHEEL_SET variable.

WO2CELLTEMP 10

O2 CELL TEMP WARN

O2 sensor cell temperature outside of
warning limits specified by O2_CELL_SET
variable.

WSAMPFLOW 6

SAMPLE FLOW WARN

Sample flow outside of warning limits
specified by SAMP_FLOW_SET variable.

WSAMPPRESS

SAMPLE PRESS WARN

Sample pressure outside of warning limits
specified by SAMP_PRESS_SET
variable.

WSAMPTEMP

SAMPLE TEMP WARN

Sample temperature outside of warning
limits specified by SAMP_TEMP_SET
variable.

WPURGEPRESS 9

PURGE PRESS WARN

Purge pressure outside of warning limits
specified by PURGE_PRESS_SET
variable.

WBOXTEMP

BOX TEMP WARNING

Internal box temperature outside of
warning limits specified by BOX_SET
variable.

WBOXTEMP2 4

BOX TEMP2 WARNING

Internal box temperature #2 outside of
warning limits specified by BOX2_SET
variable.

WOVENTEMP 11

OVEN TEMP WARNING

Oven temperature outside of warning
limits specified by OVEN_SET variable.

WPHOTOTEMP

PHOTO TEMP WARNING

Photometer temperature outside of
warning limits specified by
PHOTO_TEMP_SET variable.

WDYNZERO

CANNOT DYN ZERO

Contact closure zero calibration failed
while DYN_ZERO was set to ON.

WDYNSPAN

CANNOT DYN SPAN

Contact closure span calibration failed
while DYN_SPAN was set to ON.

WREARBOARD

REAR BOARD NOT DET

Rear board was not detected during
power up.

WAUTOZERO

04188D DCN5752

A-21

APPENDIX A-3: Warnings and Test Functions

Name 1

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Message Text

Description

WRELAYBOARD

RELAY BOARD WARN

Firmware is unable to communicate with
the relay board.

WFRONTPANEL12

FRONT PANEL WARN

Firmware is unable to communicate with
the front panel.

WANALOGCAL

ANALOG CAL WARNING

The A/D or at least one D/A channel has
not been calibrated.

The name is used to request a message via the RS-232 interface, as in “T BOXTEMP”

Engineering software

Current instrument units

T300U, M300EU

T300H, M300EH

Except T360U, M360EU (APR version)

T360, M360E

Sample pressure or differential pressure flow measurement option

GFC7000E

O2 option

T300U2, T320U2, M300EU2, M320EU2

Applies to E-Series only

A-22

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Table A-3:
TEST FUNCTION NAME
RANGE

APPENDIX A-3: Warnings and Test Functions

T300/T300M and M300E/EM Test Functions, Revision L.8
MESSAGE TEXT
RANGE=50.0 PPM

DESCRIPTION
D/A range in single or auto-range modes.

CO RANGE=50.0 PPM 3, 7
RANGE1=50.0 PPM 3

RANGE1

CO RANGE1=50.0 PPM

D/A #1 range in dual range mode.
3, 7

RANGE2=50.0 PPM 3

RANGE2

CO RANGE2=50.0 PPM

D/A #2 range in dual range mode.
3, 7

CO2RANGE

CO2 RANGE=20 % 7

CO2 range.

O2RANGE

O2 RANGE=100 % 10

O2 range.

STABILITY

STABIL=0.0 PPM 3

Concentration stability (standard deviation
based on setting of STABIL_FREQ and
STABIL_SAMPLES).

CO STB=0.0 PPM

3, 7, 10

CO2 STB=0.0 % 7
O2 STB=0.0 % 10
RESPONSE 2

RSP=0.20(0.00) SEC

Instrument response. Length of each
signal processing loop. Time in
parenthesis is standard deviation.

COMEAS

CO MEAS=4125.0 MV

Detector measure reading.

COREF

CO REF=3750.0 MV

Detector reference reading.

MRRATIO

MR RATIO=1.100

Measure/reference ratio.

AZERO RATIO=1.234

Measure/reference ratio during autoreference.

PRES=29.9 IN-HG-A

Sample pressure.

PURGE=7.5 PSIG

Purge pressure

VAC=6.8 IN-HG-A

Vacuum pressure.

SAMP FL=751 CC/M

Sample flow rate.

SAMPTEMP

SAMPLE TEMP=26.8 C

Sample temperature.

BENCHTEMP

BENCH TEMP=48.1 C

Bench temperature.

WHEEL TEMP=68.1 C

Wheel temperature.

O2 CELL TEMP=50.2 C

O2 sensor cell temperature.

BOXTEMP

BOX TEMP=26.8 C

Internal box temperature.

BOXTEMP2 4

BOX TEMP2=29.6 C

Internal box temperature #2.

OVEN TEMP=30.1 C

Oven temperature

PHT DRIVE=2500.0 MV

Photometer temperature.

SLOPE=1.000

CO slope for current range, computed
during zero/span calibration.

AUTOZERO

4, 5

SAMPPRESS
PURGEPRESS
VACUUM

8
6

SAMPFLOW

WHEELTEMP
O2CELLTEMP

OVENTEMP

PHOTOTEMP
COSLOPE

CO SLOPE=1.000 7
COSLOPE1

CO SLOPE1=1.000
COSLOPE2

CO slope for range #2 in dual range
mode, computed during zero/span
calibration.

OFFSET1=0.000
CO OFFSET1=0.000

04188D DCN5752

CO offset for current range, computed
during zero/span calibration.

OFFSET=0.000
CO OFFSET=0.000

COOFFSET1

CO slope for range #1 in dual range
mode, computed during zero/span
calibration.

SLOPE2=1.000
CO SLOPE2=1.000

COOFFSET

SLOPE1=1.000

CO offset for range #1 in dual range
mode, computed during zero/span
calibration.

A-23

APPENDIX A-3: Warnings and Test Functions
TEST FUNCTION NAME
COOFFSET2

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)
MESSAGE TEXT

OFFSET2=0.000
CO OFFSET2=0.000 7

DESCRIPTION
CO offset for range #2 in dual range
mode, computed during zero/span
calibration.

CO2SLOPE 7

CO2 SLOPE=1.000

CO2 slope, computed during zero/span
calibration.

CO2OFFSET 7

CO2 OFFSET=0.000

CO2 offset, computed during zero/span
calibration.

O2SLOPE 10

O2 SLOPE=0.980

O2 slope, computed during zero/span
calibration.

O2OFFSET 10

O2 OFFSET=1.79 %

O2 offset, computed during zero/span
calibration.

CO=17.7 PPM 3

CO concentration for current range.

CO2=15.0 %

CO2 concentration.

CO2
O2

O2=0.00 %

O2 concentration.

TESTCHAN

TEST=1751.4 MV

Value output to TEST_OUTPUT analog
output, selected with TEST_CHAN_ID
variable.

CLOCKTIME
RANGE(s)
CO2RANGE
O2RANGE
STABILITY

TIME=09:52:20
User Configurable
CO2 RANGE=20 % 1
O2 RANGE=100 % 2
STABIL=0.0 PPM
CO STB=0.0 PPM 1, 2
1
CO2 STB=0.0 %
2
O2 STB=0.0 %
CO MEAS=4125.0 MV
CO REF=3750.0 MV
MR RATIO=1.100
PRES=29.9 IN-HG-A
SAMP FL=751 CC/M
SAMPLE TEMP=26.8 C
BENCH TEMP=48.1 C
WHEEL TEMP=68.1 C
O2 CELL TEMP=50.2 C
BOX TEMP=26.8 C
PHT DRIVE=2500.0 MV
SLOPE=1.000
1
CO SLOPE=1.000
SLOPE1=1.000
CO SLOPE1=1.000 1

Current instrument time of day clock.

COMEAS
COREF
MRRATIO
SAMPPRESS
SAMPFLOW
SAMPTEMP
BENCHTEMP
WHEELTEMP
O2CELLTEMP 2
BOXTEMP
PHOTOTEMP
COSLOPE
COSLOPE1
COSLOPE2

SLOPE2=1.000
CO SLOPE2=1.000 1

COOFFSET

OFFSET=0.000
1
CO OFFSET=0.000
OFFSET1=0.000
CO OFFSET1=0.000 1

COOFFSET1
COOFFSET2

OFFSET2=0.000
CO OFFSET2=0.000 1

CO2SLOPE 1

CO2 SLOPE=1.000

CO2OFFSET 1

CO2 OFFSET=0.000

A-24

CO2 range.
O2 range.
Concentration stability (standard deviation
based on setting of STABIL_FREQ and
STABIL_SAMPLES).
Detector measure reading.
Detector reference reading.
Measure/reference ratio.
Sample pressure.
Sample flow rate.
Sample temperature.
Bench temperature.
Wheel temperature.
O2 sensor cell temperature.
Internal chassis temperature.
Photometer temperature.
CO slope for current range, computed
during zero/span calibration.
CO slope for range #1 in dual range
mode, computed during zero/span
calibration.
CO slope for range #2 in dual range
mode, computed during zero/span
calibration.
CO offset for current range, computed
during zero/span calibration.
CO offset for range #1 in dual range
mode, computed during zero/span
calibration.
CO offset for range #2 in dual range
mode, computed during zero/span
calibration.
CO2 slope, computed during zero/span
calibration.
CO2 offset, computed during zero/span
calibration.

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)
TEST FUNCTION NAME
O2SLOPE 2

MESSAGE TEXT

APPENDIX A-3: Warnings and Test Functions
DESCRIPTION

O2 slope, computed during zero/span
calibration.
O2OFFSET 2
O2 OFFSET=1.79 %
O2 offset, computed during zero/span
calibration.
CO
CO=17.7 PPM
CO concentration for current range.
CO2 1
CO2=15.0 %
CO2 concentration.
O2 2
O2=0.00 WT%
O2 concentration.
TESTCHAN
TEST=1751.4 MV
Value output to TEST_OUTPUT analog
output, selected with TEST_CHAN_ID
variable.
CLOCKTIME
TIME=09:52:20
Current instrument time of day clock.
1
The name is used to request a message via the RS-232 interface, as in “T BOXTEMP”
2

O2 SLOPE=0.980

Engineering software

Current instrument units

T300U, M300EU

T300H, M300EH

Except T360U, M360EU (APR version)

T360, M360E

Sample pressure or differential pressure flow measurement option

GFC7000E

O2 option

T300U2, T320U2, M300EU2, M320EU2

04188D DCN5752

A-25

APPENDIX A-4: Signal I/O Definitions

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-4: Signal I/O Definitions

Table A-4:

Signal I/O Definitions for T300/T300M and M300E/EM Series Analyzers, Revision L.8

Signal Name

Bit or Channel
Number

Description

Internal inputs, U7, J108, pins 9–16 = bits 0–7, default I/O address 322 hex
SYNC_OK

1 = sync. OK
0 = sync. error

1–7

Spare

Internal outputs, U8, J108, pins 1–8 = bits 0–7, default I/O address 322 hex
ELEC_TEST

1 = electrical test on
0 = off

DARK_CAL

1 = dark calibration on
0 = off

2–5
I2C_RESET

Spare
1 = reset I2C peripherals
0 = normal

I2C_DRV_RST

0 = hardware reset 8584 chip
1 = normal

Control inputs, U11, J1004, pins 1–6 = bits 0–5, default I/O address 321 hex
EXT_ZERO_CAL

0 = go into zero calibration
1 = exit zero calibration

EXT_SPAN_CAL

0 = go into span calibration
1 = exit span calibration

REMOTE_RANGE_HI

0 = select high range during contact closure calibration
1 = select low range

3–5

Spare

6–7

Always 1

Control inputs, U14, J1006, pins 1–6 = bits 0–5, default I/O address 325 hex
0–5

Spare

6–7

Always 1

Control outputs, U17, J1008, pins 1–8 = bits 0–7, default I/O address 321 hex
0–7

Spare

Control outputs, U21, J1008, pins 9–12 = bits 0–3, default I/O address 325 hex
0–3

A-26

Spare

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Signal Name

APPENDIX A-4: Signal I/O Definitions

Bit or Channel
Number

Description

Alarm outputs, U21, J1009, pins 1–12 = bits 4–7, default I/O address 325 hex
ST_SYSTEM_OK2

1 = system OK
0 = any alarm condition or in diagnostics mode

ST_CONC_ALARM_1

1 = conc. limit 1 exceeded
0 = conc. OK

ST_HIGH_RANGE 10 + 13

ST_CONC_ALARM_2 8

1 = high auto-range in use
0 = low auto-range
1 = conc. limit 2 exceeded
0 = conc. OK

ST_ZERO_CAL

10 + 13

1 = in zero calibration
0 = not in zero

ST_HIGH_RANGE2 16

1 = high auto-range in use (mirrors ST_HIGH_RANGE
status output)
0 = low auto-range

A status outputs, U24, J1017, pins 1–8 = bits 0–7, default I/O address 323 hex
ST_SYSTEM_OK

0 = system OK
1 = any alarm condition

ST_CONC_VALID

0 = conc. valid
1 = hold off or other conditions

ST_HIGH_RANGE

0 = high auto-range in use
1 = low auto-range

ST_ZERO_CAL

ST_SPAN_CAL

0 = in zero calibration
1 = not in zero
0 = in span calibration
1 = not in span

ST_DIAG_MODE

0 = in diagnostic mode
1 = not in diagnostic mode

0 = in auto-reference mode
1 = not in auto-reference mode

Spare

ST_AUTO_REF

B status outputs, U27, J1018, pins 1–8 = bits 0–7, default I/O address 324 hex
ST_AUTO_REF

ST_CO2_CAL

0 = in auto-reference mode
1 = not in auto-reference mode

1–5

Spare

0 = in CO2 calibration
1 = not in CO2 calibration

ST_O2_CAL 5

0 = in O2 calibration
1 = not in O2 calibration

04188D DCN5752

A-27

APPENDIX A-4: Signal I/O Definitions

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Signal Name

Bit or Channel
Number

Description

Front panel I2C keyboard, default I2C address 4E hex
MAINT_MODE

5 (input)

0 = maintenance mode
1 = normal mode

LANG2_SELECT

6 (input)

0 = select second language
1 = select first language (English)

SAMPLE_LED

8 (output)

0 = sample LED on

CAL_LED

9 (output)

0 = cal. LED on

1 = off
1 = off
FAULT_LED

10 (output)

0 = fault LED on
1 = off

AUDIBLE_BEEPER

14 (output)

0 = beeper on (for diagnostic testing only)
1 = off

Relay board digital output (PCF8574), default I2C address 44 hex
RELAY_WATCHDOG

Alternate between 0 and 1 at least every 5 seconds to keep
relay board active

WHEEL_HTR

0 = wheel heater on
1 = off

BENCH_HTR

O2_CELL_HEATER 5

0 = optical bench heater on
1 = off
0 = O2 sensor cell heater on
1 = off

BOX2_HEATER ,

0 = internal box temperature #2/oven heater on

OVEN_HEATER 15

1 = off

CAL_VALVE

SPAN_VALVE

0 = let cal. gas in
1 = let sample gas in
0 = let span gas in
1 = let zero gas in

ZERO_SCRUB_VALVE

2,3

0 = open zero scrubber valve
1 = close

SHUTOFF_VALVE

6
7

IR_SOURCE_ON

0 = energize shutoff valve
3,15

7
n/a 3,15

A-28

1 = de-energize
0 = IR source on
1 = off

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Signal Name

APPENDIX A-4: Signal I/O Definitions

Bit or Channel
Number

Description

Rear board primary MUX analog inputs
SAMPLE_PRESSURE

Sample pressure

Vacuum pressure

Purge pressure

CO_MEASURE

Detector measure reading

CO_REFERENCE

Detector reference reading

Temperature MUX

SAMPLE_FLOW

Sample flow

PHOTO_TEMP

Photometer detector temperature

TEST_INPUT_7

Diagnostic test input

TEST_INPUT_8

Diagnostic test input

REF_4096_MV

4.096V reference from MAX6241

O2 concentration sensor

VACUUM_PRESSURE
PURGE_PRESSURE

O2_SENSOR

CO2_SENSOR 7

REF_GND

9, 10

Spare

CO2 concentration sensor

Spare

DAC loopback MUX

Ground reference

Rear board temperature MUX analog inputs
BOX_TEMP

Internal box temperature

SAMPLE_TEMP

Sample temperature

BENCH_TEMP

Optical bench temperature

WHEEL_TEMP

Wheel temperature

TEMP_INPUT_4

Diagnostic temperature input

O2 sensor cell temperature

Internal box temperature #2 / oven temperature

Spare

TEMP_INPUT_5
O2_CELL_TEMP
BOX2_TEMP
OVEN_TEMP

3
19,23

Rear board DAC MUX analog inputs
DAC_CHAN_1

DAC channel 0 loopback

DAC_CHAN_2

DAC channel 1 loopback

DAC_CHAN_3

DAC channel 2 loopback

DAC_CHAN_4

DAC channel 3 loopback

04188D DCN5752

A-29

APPENDIX A-4: Signal I/O Definitions

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Signal Name

Bit or Channel
Number

Description

Rear board analog outputs
CONC_OUT_1,

DATA_OUT_1
CONC_OUT_2,

Data output #1
1

DATA_OUT_2
CONC_OUT_3, 7, 5

DATA_OUT_4
1

Hessen protocol

T300H, M300EH

T300U, M300EU

T320, M320E

O2 option

Concentration output #2 (CO, range #2),
Data output #2

Concentration output #3 (CO2 or O2),
Data output #3

DATA_OUT_3
TEST_OUTPUT,

Concentration output #1 (CO, range #1),

Test measurement output,
Data output #4

Sample pressure or differential pressure flow measurement option

CO2 option

Concentration alarms option

T360, M360E

GFC7000E

T300M, M300EM

Air Products special #1

Air Products special #2

T300U2, M300EU2

High auto range relay option

A-30

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-5: DAS Triggers and Parameters

APPENDIX A-5: DAS Triggers and Parameters
Table A-5: T300/T300M and M300E/EM DAS Trigger Events, Revision L.8

Name

Description

ATIMER

Automatic timer expired

EXITZR

Exit zero calibration mode

EXITSP

Exit span calibration mode

EXITMP

Exit multi-point calibration mode

EXITC2 5

Exit CO2 calibration mode

SLPCHG

Slope and offset recalculated

CO2SLC

O2SLPC

CO2 slope and offset recalculated
O2 slope and offset recalculated

EXITDG

Exit diagnostic mode

SOURCW

Source warning

AZEROW

1, 2

Auto-zero warning

CONCW1

1, 3, 4

Concentration limit 1 exceeded

CONCW2

1, 3, 4

Concentration limit 2 exceeded

SYNCW

Sync warning

BNTMPW

Bench temperature warning

WTEMPW

Wheel temperature warning
7

O2TMPW
STEMPW

O2 sensor cell temperature warning
Sample temperature warning

SFLOWW

SPRESW

Sample flow warning
Sample pressure warning

PPRESW
BTEMPW

Purge pressure warning
Internal box temperature warning

BTMP2W ,
OVTMPW

Internal box temperature #2/oven warning

PTEMPW

Photometer detector temperature warning

T300H, M300EH

T300U, M300EU

T320, M320E

GFC7000E

T360, M360E

Except M360EU (APR version)

O2 option

T300U2, T320U2, M300EU2, M320EU2

04188D DCN5752

A-31

APPENDIX A-5: DAS Triggers and Parameters

Table A-6:

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

T300/T300M and M300E/EM DAS Parameters, Revision L.8

Name

Description

Units

DETMES

Detector measure reading

DETREF

Detector reference reading

RATIO

M/R ratio.

none

SLOPE1

Slope for range #1

none

SLOPE2

Slope for range #2

none

OFSET1

Offset for range #1

none

OFSET2

Offset for range #2

none

CO2SLP 5

CO2 slope

none

CO2OFS

CO2 offset

O2SLPE

O2 slope

none

O2OFST

O2 offset

AZERO 1,2

Auto-zero reading

M/R

ZSCNC1

Concentration for range #1 during zero/span calibration, just before
computing new slope and offset

PPM

ZSCNC2

Concentration for range #2 during zero/span calibration, just before
computing new slope and offset

PPM

CO2ZSC 5

CO2 concentration during zero/span calibration, just before
computing new slope and offset

O2ZSCN 8

O2 concentration during zero/span calibration, just before computing
new slope and offset

CONC1

Concentration for range #1

PPM

CONC2

Concentration for range #2

PPM

CO2CNC

CO2 concentration

O2CONC

O2 concentration

STABIL

Concentration stability

PPM

BNTEMP

Bench temperature

C

BNCDTY

Bench temperature control duty cycle

Fraction
(0.0 = off,
1.0 = on full)

WTEMP

Wheel temperature

C

WHLDTY

Wheel temperature control duty cycle

Fraction
(0.0 = off,
1.0 = on full)

O2TEMP 8

O2 sensor cell temperature

C

SMPTMP

Sample temperature

C

Sample flow

cc/m

SMPFLW

SMPPRS

Sample pressure

"Hg

VACUUM

1, 3, 6

Vacuum pressure

"Hg

PRGPRS

Purge pressure

PSIG

BOXTMP

Internal box temperature

C

BX2TMP 2,

Internal box temperature #2/oven

C

OVNTMP 9

A-32

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Name
BX2DTY 2,

APPENDIX A-5: DAS Triggers and Parameters

Description
Internal box temperature #2/oven control duty cycle

OVNDTY 9

Units
Fraction
(0.0 = off,
1.0 = on full)

PHTDRV

Photometer detector temperature drive

TEST7

Diagnostic test input (TEST_INPUT_7)

TEST8

Diagnostic test input (TEST_INPUT_8)

TEMP4

Diagnostic temperature input (TEMP_INPUT_4)

C

TEMP5

Diagnostic temperature input (TEMP_INPUT_5)

C

REFGND

Ground reference (REF_GND)

RF4096

4096 mV reference (REF_4096_MV)

XIN1

Channel 1 Analog In
4

Channel 1 Analog In Slope

XIN1OFST 4

Channel 1 Analog In Offset

XIN1SLPE
XIN2

Channel 2 Analog In

XIN2SLPE

Channel 2 Analog In Slope

XIN2OFST

Channel 2 Analog In Offset

XIN3 4

Channel 3 Analog In

XIN3SLPE

Channel 3 Analog In Slope

XIN3OFST

Channel 3 Analog In Offset

XIN4

Channel 4 Analog In
4

Channel 4 Analog In Slope

XIN4OFST 4

Channel 4 Analog In Offset

XIN4SLPE
XIN5

Channel 5 Analog In

XIN5SLPE

Channel 5 Analog In Slope

XIN5OFST

Channel 5 Analog In Offset

XIN6 4

Channel 6 Analog In

XIN6SLPE

Channel 6 Analog In Slope

XIN6OFST

Channel 6 Analog In Offset

XIN7

Channel 7 Analog In
4

Channel 7 Analog In Slope

XIN7OFST 4

Channel 7 Analog In Offset

XIN7SLPE
XIN8

Channel 8 Analog In

XIN8SLPE

Channel 8 Analog In Slope

XIN8OFST

Channel 8 Analog In Offset

T300H, M300EH

T300U, M300EU

T320, M320E

GFC7000E

T360, M360E

Except T360U, M360EU (APR version)

The units, including the concentration units, are always fixed, regardless of the current instrument units

O2 option

T300U2, T320U2, M300EU2, M320EU2

04188D DCN5752

A-33

APPENDIX A-6: Terminal Command Designators

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

APPENDIX A-6: Terminal Command Designators
Table A-7: Terminal Command Designators
COMMAND

ADDITIONAL COMMAND SYNTAX

? [ID]
LOGON [ID]

Display help screen and commands list
password

LOGOFF [ID]

T [ID]

W [ID]

C [ID]

D [ID]

V [ID]

DESCRIPTION
Establish connection to instrument
Terminate connection to instrument

SET ALL|name|hexmask

Display test(s)

LIST [ALL|name|hexmask] [NAMES|HEX]

Print test(s) to screen

name

Print single test

CLEAR ALL|name|hexmask

Disable test(s)

SET ALL|name|hexmask

Display warning(s)

LIST [ALL|name|hexmask] [NAMES|HEX]

Print warning(s)

name

Clear single warning

CLEAR ALL|name|hexmask

Clear warning(s)

ZERO|LOWSPAN|SPAN [1|2]

Enter calibration mode

ASEQ number

Execute automatic sequence

COMPUTE ZERO|SPAN

Compute new slope/offset

EXIT

Exit calibration mode

ABORT

Abort calibration sequence

LIST

Print all I/O signals

name[=value]

Examine or set I/O signal

LIST NAMES

Print names of all diagnostic tests

ENTER name

Execute diagnostic test

EXIT

Exit diagnostic test

RESET [DATA] [CONFIG] [exitcode]

Reset instrument

PRINT ["name"] [SCRIPT]

Print DAS configuration

RECORDS ["name"]

Print number of DAS records

REPORT ["name"] [RECORDS=number] [FROM=][TO=][VERBOSE|COMPACT|HEX]
(Print DAS records)(date format: MM/DD/YYYY(or YY)
[HH:MM:SS]

Print DAS records

CANCEL

Halt printing DAS records

LIST

Print setup variables

name[=value [warn_low [warn_high]]]

Modify variable

name="value"

Modify enumerated variable

CONFIG

Print instrument configuration

MAINT ON|OFF

Enter/exit maintenance mode

MODE

Print current instrument mode

DASBEGIN [] DASEND

Upload DAS configuration

CHANNELBEGIN propertylist CHANNELEND

Upload single DAS channel

CHANNELDELETE ["name"]

Delete DAS channels

The command syntax follows the command type, separated by a space character. Strings in [brackets] are optional
designators. The following key assignments also apply.

A-34

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Table A-8:

APPENDIX A-7: MODBUS Register Map

Terminal Key Assignments

TERMINAL KEY ASSIGNMENTS
ESC

Abort line

CR (ENTER)

Execute command

Ctrl-C

Switch to computer mode
COMPUTER MODE KEY ASSIGNMENTS

LF (line feed)

Execute command

Ctrl-T

Switch to terminal mode

APPENDIX A-7: MODBUS Register Map
Table A-9: MODBUS Register Map

MODBUS
Register Address
(dec., 0-based)

Description

Units

MODBUS Floating Point Input Registers
(32-bit IEEE 754 format; read in high-word, low-word order; read-only)
0

Detector measure reading

Detector reference reading

M/R ratio.

none

Slope for range #1

none

Slope for range #2

none

Offset for range #1

none

Offset for range #2

none

Concentration for range #1 during zero/span calibration, just before
computing new slope and offset

PPM

Concentration for range #2 during zero/span calibration, just before
computing new slope and offset

PPM

Concentration for range #1

PPM

Concentration for range #2

PPM

Concentration stability

PPM

Bench temperature

C

Bench temperature control duty cycle

Fraction
(0.0 = off,
1.0 = on full)

Wheel temperature

Wheel temperature control duty cycle

C
Fraction
(0.0 = off,
1.0 = on full)

Sample temperature

C

Sample pressure

“Hg

Internal box temperature

C

Photometer detector temperature drive

04188D DCN5752

A-35

APPENDIX A-7: MODBUS Register Map

MODBUS
Register Address
(dec., 0-based)

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Description

Units

Diagnostic test input (TEST_INPUT_7)

Diagnostic test input (TEST_INPUT_8)

Diagnostic temperature input (TEMP_INPUT_4)

C

Diagnostic temperature input (TEMP_INPUT_5)

C

Ground reference (REF_GND)

4096 mV reference (REF_4096_MV)

Purge pressure

PSIG

Sample flow

cc/m

Vacuum pressure

"Hg

58 1

Internal box temperature #2/oven

C

60 1

Internal box temperature #2/oven control duty cycle

Fraction
(0.0 = off,
1.0 = on full)

Auto-zero reading

M/R

100

O2 concentration

102

O2 concentration during zero/span calibration, just before computing
new slope and offset

104 2

O2 slope

—

106

O2 offset

108

O2 sensor cell temperature

C

200

CO2 concentration

202 3

CO2 concentration during zero/span calibration, just before
computing new slope and offset

204 3

CO2 slope

—

CO2 offset

206

MODBUS Floating Point Holding Registers
(32-bit IEEE 754 format; read/write in high-word, low-word order; read/write)
0
2

Maps to CO_SPAN1 variable; target conc. for range #1

Conc. units

Maps to CO_SPAN2 variable; target conc. for range #2

Conc. units

100

Maps to O2_TARG_SPAN_CONC variable

200

Maps to CO2_TARG_SPAN_CONC variable

A-36

04188D DCN5752

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

MODBUS
Register Address
(dec., 0-based)

Description

APPENDIX A-7: MODBUS Register Map

Units

MODBUS Discrete Input Registers
(single-bit; read-only)
0

Source warning

Box temperature warning

Bench temperature warning

Wheel temperature warning

Sample temperature warning

Sample pressure warning

Photometer detector temperature warning

System reset warning

Rear board communication warning

Relay board communication warning

Front panel communication warning

Analog calibration warning

Dynamic zero warning

Dynamic span warning

Invalid concentration

In zero calibration mode

In span calibration mode

In multi-point calibration mode

System is OK (same meaning as SYSTEM_OK I/O signal)

Purge pressure warning
Sample flow warning

21 1

Internal box temperature #2/oven warning

22 1

Concentration limit 1 exceeded

Concentration limit 2 exceeded

Auto-zero warning

Sync warning

26 1

In Hessen manual mode

100 2

In O2 calibration mode

101

O2 cell temperature warning

102

1,2

O2 concentration limit 1 exceeded

103 1,2

O2 concentration limit 2 exceeded

200

In CO2 calibration mode

201

1,3

CO2 concentration limit 1 exceeded

202

1,3

CO2 concentration limit 2 exceeded

04188D DCN5752

A-37

APPENDIX A-7: MODBUS Register Map

MODBUS
Register Address
(dec., 0-based)

Teledyne API - T300/T300M and M300E/EM PN 04906H (DCN5840)

Description

Units

MODBUS Coil Registers
(single-bit; read/write)
0

Maps to relay output signal 36 (MB_RELAY_36 in signal I/O list)

Maps to relay output signal 37 (MB_RELAY_37 in signal I/O list)

Maps to relay output signal 38 (MB_RELAY_38 in signal I/O list)

Maps to relay output signal 39 (MB_RELAY_39 in signal I/O list)

Triggers zero calibration of range #1 (on enters cal.; off exits cal.)

Triggers span calibration of range #1 (on enters cal.; off exits cal.)

Triggers zero calibration of range #2 (on enters cal.; off exits cal.)

Triggers span calibration of range #2 (on enters cal.; off exits cal.)

Optional

O2 option

CO2 option

Set DYN_ZERO or DYN_SPAN variables to ON to enable calculating new slope or offset. Otherwise a calibration check
is performed.

A-38

04188D DCN5752

APPENDIX B - Spare Parts

Note

Use of replacement parts other than those supplied by Teledyne Advanced
Pollution Instrumentation (TAPI) may result in non-compliance with European
standard EN 61010-1.

Note

Due to the dynamic nature of part numbers, please refer to the TAPI Website at
http://www.teledyne-api.com or call Customer Service at 800-324-5190 for more
recent updates to part numbers.

04288D DCN5752

B-1

This page intentionally left blank.

B-2

04288D DCN5752

M300E Spare Parts List
(Reference: 05362J DCN5494)
Part Number
000940600
000940700
000941000
001760400
001761300
001763000
003291500
006110200
009450300
009550400
009550500
009560301
009600400
009690000
009690100
009840300
010790000
010800000
016290000
016300600
016910000
019340200
033520000
033560000
035950100
036020100
037250000
037860000
039260101
040010000
040030100
040370000
041350000
041710000
042410100
042410200
042580000
042680000
042690000
042880000
042900100
043250100
043250300
043250400
043420000
043940000

04188D DCN5752

Description
ORIFICE, 10 MIL, SPAN GAS FLOW CONTROL
ORIFICE, 5 MIL, FLOW CONTROL, 02 OPTION
ORIFICE, 13 MIL (SAMPLE FLOW)
ASSY, FLOW CTL, 800CC, 1/4" CONN-B
ASSY, SPAN GAS FLOW CONTROL
ASSY, FLOW CTL, 110CC, 1/8" -B
ASSY, THERMISTOR, BENCH/WHEEL, M300E
ASSY, M300 MOTOR WHEEL HEATER
ASSY, ZERO/SPAN VALVES, M300E
ASSY, SOURCE, M300E S/N<65
ASSY, SOURCE, M300E S/N>65
FILTER WHEEL, CO
AKIT, EXPENDABLES, M300E
AKIT, TFE FLTR ELEM, FL6, 47MM (100=1)
AKIT, TFE FLTR, 47MM, (FL6, 30=1)
ASSY, SHUT-OFF VALVE W/FLOW CONTROL
INPUT MIRROR, REPLICATED(KB)
OUTPUT MIRROR, REPLICATED(KB)
WINDOW, SAMPLE FILTER, 47MM (KB)
ASSY, SAMPLE FILTER, 47MM, ANG BKT, 5UM
AKIT, EXP KIT, CO CATALYST
ASSY, SAMPLE THERMISTOR, M300E BRASS
MIRROR, OBJECT, 32 PASS, M300E (KB)
MIRROR, FIELD, 32 PASS, M300E (KB)
DOC, w/SOFTWARE, M300E (KB)* (USE WITH ACROSSER CPU 041710000)
ASSY, SENSOR, M300E, SN >=100 (KB)
ASSY, HEATER, OPTICAL BENCH
ORING, TFE RETAINER, SAMPLE FILTER
DETECTOR, CO, w/BANDPASS FILTER *
ASSY, FAN REAR PANEL, E SERIES
PCA, FLOW/PRESSURE
ASSY, CO SCRUBBER, M300E (KB)
PCA, RELAY BOARD, M300E
ASSY, CPU, CONFIGURATION, "E" SERIES * (USE WITH DOC 035950100)
ASSY, PUMP W/FLOW CONTROL
ASSY, PUMP, INT, SOX/O3/IR *
PCA, KEYBOARD, E-SERIES, W/V-DETECT
ASSY, VALVE, FOR SAMPLE/CAL VALVE ASSY
ASSY, VALVE, SHUT-OFF
MANUAL, OPERATORS, M300E/EM
PROGRAMMED FLASH, E SERIES
CONFIGURATION PLUGS, 115V/60Hz
CONFIGURATION PLUGS, 220-240V/50Hz
CONFIGURATION PLUGS, 220-240V/60Hz
ASSY, HEATER/THERMISTOR, O2 OPTION
PCA, INTERFACE, ETHERNET, E-SERIES

B-1

M300E Spare Parts List
(Reference: 05362J DCN5494)
Part Number
048620200
050320000
052830200
055010000
055100200
058021100
062420200
062870000
063600100
CN0000458
CN0000520
DS0000025
FL0000001
FM0000004
HW0000005
HW0000020
HW0000036
HW0000101
HW0000453
KIT000032
KIT000178
KIT000219
OP0000009
OR0000001
OR0000034
OR0000039
OR0000041
OR0000088
OR0000094
PS0000011
PS0000024
PS0000025
PU0000022
RL0000015
SW0000051
SW0000059
WR0000008

B-2

Description
PCA, SERIAL INTERFACE, w/ MD, E SERIES (USE WITH ACROSSER CPU 041710000)
PCA, PHOTO-INTERRUPTER
ASSY, MOTOR HUB, MR7, "E", 115V
ASSY, MTR WHL HEATER w/THERM, 200W
ASSY, OPTION, PUMP, 240V *
PCA, E-SERIES MOTHERBD, GEN 5-ICOP (ACCEPTS ACROSSER OR ICOP CPU)
PCA, SER INTRFACE, ICOP CPU, E- (OPTION) (USE WITH ICOP CPU 062870000)
CPU, PC-104, VSX-6150E, ICOP *(KB) (MUST USE WITH 058021100 MB)
DOM, w/SOFTWARE, M300E * (USE WITH ICOP CPU 062870000)
CONNECTOR, REAR PANEL, 12 PIN
CONNECTOR, REAR PANEL, 10 PIN
DISPLAY, E SERIES (KB)
FILTER, SS
FLOWMETER (KB)
FOOT, CHASSIS
SPRING
TFE TAPE, 1/4" (48 FT/ROLL)
ISOLATOR
SUPPORT, CIRCUIT BD, 3/16" ICOP
REPLACEMENT, CO FILTER WHEEL ASSY
RETROFIT, SYNC DMOD w/DETECTOR, M300E
PCA, 4-20MA OUTPUT, E-OPTION
WINDOW, IR SOURCE/BENCH
ORING, FLOW CONTROL
ORING, INPUT & OUTPUT MIRRORS
ORING, IR SOURCE/BENCH
ORING, OBJECT & FIELD MIRRORS
ORING, DETECTOR
ORING, SAMPLE FILTER
PWR SUPPLY, SW, +5V, +/-15V, 40W (KB)
COVER ENCLOSURE KIT,LPX 40/60 (KB)
PWR SUPPLY, SW, 12V, 40W (KB)
REBUILD KIT, FOR PU20 & 04241 (KB)
RELAY, DPDT, (KB)
SWITCH, POWER CIRC BREAK VDE/CE, w/RG(KB
PRESSURE SENSOR, 0-15 PSIA, ALL SEN
POWER CORD, 10A

04188D DCN5752

M300EM Spare Parts List
(Reference: 05424H DCN5494)
Part Number
000940600
000941000
001760400
001761300
003291500
009390000
009450300
009550500
009560301
009600400
009690000
009690100
009840300
010790000
010800000
016290000
016300600
019340200
026060000
026070000
036070000
036080000
036090000
036100000
037250100
037860000
039260101
040010000
040030100
040360100
040370000
041350000
041710000
042410100
042410200
042580000
042680000
042690000
042880000
042900100
042990100
043250100
043250300
043250400
043940000
048620200
050320000
052830200
054400100
055010000
055100200
04188D DCN5752

Description
ORIFICE, 10 MIL, SPAN GAS FLOW CONTROL
ORIFICE, 13 MIL (SAMPLE FLOW)
ASSY, SAMPLE FLOW CONTROL
ASSY, SPAN GAS FLOW CONTROL
ASSY, THERMISTOR, BENCH/WHEEL, M300E
APERTURE
ASSY, ZERO/SPAN VALVES, M300E
ASSY, SOURCE
FILTER WHEEL, CO
AKIT, EXPENDABLES, M300E
AKIT, TFE FLTR ELEM, FL6, 47MM (100=1)
AKIT, TFE FLTR, 47MM, (FL6) (30)
ASSY, SHUT-OFF VALVE W/FLOW CONTROL
INPUT MIRROR, REPLICATED(KB)
OUTPUT MIRROR, REPLICATED(KB)
WINDOW, SAMPLE FILTER
ASSY, SAMPLE FILTER
ASSY, SAMPLE THERMISTOR
MIRROR, OBJECTIVE, 8 PASS
MIRROR, FIELD, 8 PASS
OPTION, IZS & SO VALVE, M300E (KB)
OPTION, Z/S & SO VALVE, M3XXEX (KB)
OPTION, Z/S, M300E (KB)
OPTION, IZS, M300E (KB)
ASSY, BAND HEATER W/TC, M300EM/M3X0E
ORING, TFE RETAINER, SAMPLE FILTER
DETECTOR, CO, w/BANDPASS FILTER *
ASSY, FAN REAR PANEL, E SERIES
PCA, FLOW/PRESSURE
AKIT, SPARE PARTS, M300E
ASSY, CO SCRUBBER, M300E (KB)
PCA, RELAY BOARD, M300E
ASSY, CPU, CONFIGURATION, "E" SERIES * (USE WITH DOC 054400100)
ASSY, PUMP W/FLOW CONTROL
ASSY, PUMP, INT, SOX/O3/IR *
PCA, KEYBOARD, E-SERIES, W/V-DETECT
ASSY, VALVE, FOR SAMPLE/CAL VALVE ASSY
ASSY, VALVE, SHUT-OFF
MANUAL, OPERATORS, M300E/EM
PROGRAMMED FLASH, E SERIES
ASSY, SENSOR, M300EM
CONFIGURATION PLUGS, 115V/60Hz
CONFIGURATION PLUGS, 220-240V/50Hz
CONFIGURATION PLUGS, 220-240V/60Hz
PCA, INTERFACE, ETHERNET, E-SERIES
PCA, SERIAL INTERFACE, w/ MD, E SERIES (USE WITH ACROSSER CPU 041710000)
PCA, PHOTO-INTERRUPTER
ASSY, MOTOR HUB, MR7, "E", 115V
DOC, w/SOFTWARE, M300EM (USE WITH ACROSSER CPU 041710000)
ASSY, MTR WHL HEATER w/THERM, 200W
ASSY, OPTION, PUMP, 240V *
B-3

M300EM Spare Parts List
(Reference: 05424H DCN5494)
Part Number
058021100
062420200
062870000
063610100
CN0000458
CN0000520
DS0000025
FL0000001
FM0000004
HW0000005
HW0000020
HW0000036
HW0000101
HW0000453
KIT000178
KIT000219
OP0000009
OR0000001
OR0000034
OR0000039
OR0000041
OR0000088
OR0000094
PS0000011
PS0000024
PS0000025
PU0000022
RL0000015
SW0000051
SW0000059
WR0000008

B-4

Description
PCA, E-SERIES MOTHERBD, GEN 5-ICOP (ACCEPTS ACROSSER OR ICOP CPU)
PCA, SER INTRFACE, ICOP CPU, E- (OPTION) (USE WITH ICOP CPU 062870000)
CPU, PC-104, VSX-6150E, ICOP (MUST USE WITH 058021100)
DOM, w/SOFTWARE, M300EM (USE WITH ICOP CPU 062870000)
CONNECTOR, REAR PANEL, 12 PIN
CONNECTOR, REAR PANEL, 10 PIN
DISPLAY, E SERIES (KB)
FILTER, SS
FLOWMETER (KB)
FOOT, CHASSIS
SPRING
TFE TAPE, 1/4" (48 FT/ROLL)
ISOLATOR
SUPPORT, CIRCUIT BD, 3/16" ICOP
RETROFIT, SYNC DMOD w/DETECTOR, M300E
PCA, 4-20MA OUTPUT, E-OPTION
WINDOW, IR SOURCE/BENCH
ORING, FLOW CONTROL
ORING, INPUT & OUTPUT MIRRORS
ORING, IR SOURCE/BENCH
ORING, OBJECT & FIELD MIRRORS
ORING, DETECTOR
ORING, SAMPLE FILTER
PWR SUPPLY, SW, +5V, +/-15V, 40W (KB)
COVER ENCLOSURE KIT,LPX 40/60 (KB)
PWR SUPPLY, SW, 12V, 40W (KB)
REBUILD KIT, FOR PU20 & 04241 (KB)
RELAY
SWITCH, POWER
PRESSURE SENSOR, 0-15 PSIA, ALL SEN
POWER CORD, 10A

04188D DCN5752

M300EM Recommended Spare Parts
Stocking Levels
(Reference: 04834G DCN5220)
Part Number
003291500
009550500
009560301
037250100
040010000
040030100
041350000
041710000
042410200
042580000

Description
ASSY, THERMISTOR, BENCH/WHEEL, M300E
ASSY, SOURCE, M300E S/N>65
GF WHEEL, CO, M300A/E SERIES (KB) *
ASSY, BAND HEATER W/TC, M300EM/M3X0E (KB
ASSY, FAN REAR PANEL, E SERIES
PCA, PRESS SENSORS (1X), w/FM4, E SERIES
PCA, RELAY BOARD, M300E
ASSY, CPU, CONFIGURATION, "E" SERIES
ASSY, PUMP, INT, SOX/O3/IR *
PCA, KEYBOARD, E-SERIES, W/V-DETECT

042680000

ASSY, VALVE (SS), M300E (KB)

042690000

ASSY, VALVE , 2-WAY, 12V

050320000
052830100
055010000
058021100
DS0000025
KIT000179

PCA, OPTO-INTERRUPTER, M300E
ASSY, MOTOR HUB, MR7, "A", 115V
ASSY, MTR WHL HEATER w/THERM, 200W
PCA, E-SERIES MOTHERBOARD, GEN 5-I
DISPLAY, E SERIES (KB)
RETROFIT, SYNC DMOD UPDATE, M300EM

OP0000030

OXYGEN TRANSDUCER, PARAMAGNETIC

PS0000011
PS0000025
RL0000015

PWR SUPPLY, SW, +5V, +/-15V, 40W (KB)
PWR SUPPLY, SW, 12V, 40W (KB)
RELAY, DPDT, (KB)

2-5

6-10

11-20

1
1
*
*
1
*
*
*
*
*

1
1
*
1
1
*
1
*
*
*

1
2
*
1
2
1
1
1
*
*

2
2
1
2
2
2
2
1
2
1

21-30 UNITS
2
3
1
2
3
3
2
1
2
1

*
*
*
*
*
*
*

*
1
*
*
*
*
*

1
1
1
1
*
*
1

1
2
1
2
1
1
2

2
2
2
2
2
1
2

*
*
*
1

*
1
1
2

1
2
2
2

*
With IZS,
ZS Option
With IZS,
ZS Option

With O2
Option

* For 240V operation, use 055100200

04188D DCN5752

B-5

M300E/EX Expendables Kit
(Reference: 0096004C)
Part Number

009690100
FL0000001
HW0000020
NOTE01-023
OR0000001
PU0000022

B-6

Description

AKIT, TEFLON FILTER ELEMENTS, 47MM, 5UM (25)
FILTER, SS
SPRING
SERVICE NOTE, HOW TO REBUILD KNF PUMP
ORING, FLOW CONTROL
REBUILD KIT, FOR PU20 & 04084

Quantity

1
1
1
1
2
1

04188D DCN5752

Part Number

000941000
009550500
040010000
RL0000015

04188D DCN5752

Description

ORIFICE, 13 MIL (SAMPLE FLOW)
ASSY, SOURCE
ASSY, FAN, REAR PANEL, E SERIES
RELAY

Quantity

1
1
1
1

B-7

Model M300EU Recommended Spare Parts Stocking Levels
(Reference: 04302Q DCN5480 + updates 06/15/2011)

003291500
009550500

ASSY, SOURCE

009560301

GF WHEEL, CO, (KB) *

040010000
040030100
041350000
042410200
042580000
042680000
042690000
050320000
052830200
055010000
058021100
062870000
DR0000007
DS0000025
KIT000178
KIT000202
OP0000030
PS0000011
PS0000025
RL0000015
DS0000025
KIT000283
KIT000202
PS0000011
PS0000025
RL0000015

ASSY, FAN REAR PANEL
PCA, PRESS SENSORS (1X), w/FM4
PCA, RELAY BOARD, CO(KB)
ASSY, PUMP, INT, SOX/O3/IR *
PCA, KEYBOARD, W/V-DETECT(KB)
ASSY, VALVE (SS)
ASSY, VALVE , 2-WAY, 12V
PCA, OPTO-INTERRUPTER
ASSY, MOTOR HUB, MR7
ASSY, MTR WHL HEATER w/THERM, 200W
PCA, MOTHERBD, GEN 5-ICOP
CPU, PC-104, VSX-6150E, ICOP (KB)*
PERMAPURE DREYER, 100 TUBE, 12"(KB)
DISPLAY(KB)
RETROFIT, SYNC DMOD w/DETECTOR*
REPLACEMENT, CO FILTER WHEEL, M300E
OXYGEN TRANSDUCER, PARAMAGNETIC
PWR SUPPLY, SW, +5V, +/-15V, 40W (KB)
PWR SUPPLY, SW, 12V, 40W (KB)
RELAY, DPDT, (KB)
DISPLAY, E SERIES (KB)
RETROFIT, SYNC DMOD w/DETECTOR, M300EU
REPLACEMENT, CO FILTER WHEEL, M300E
PWR SUPPLY, SW, +5V, +/-15V, 40W (KB)
PWR SUPPLY, SW, 12V, 40W (KB)
RELAY, DPDT, (KB)

Units
6-10
11-20

2-5

1
1
1

1
1
2

1
1

1
2
1
1
1

1
1
1
1

1
1
2

2
2
2
1
2
2
2
2
2
1
2
1
2
1
1
1
1
1
1
1
1
2
1
2
2
2

21-30
2
2
3
1
2
3
3
2
2
1
2
2
2
2
2
2
2
2
1
1
1
2
1
2
2
2

* Recommended Spare Parts Stocking Level: For Pump Assembly, 240V Option Installed
Part Number
055100200

Description

2-5

Units
6-10
11-20

OPTION, PUMP ASSY, 240V

21-30
2

Recommended Spare Parts Stocking Level: For O2 Option Installed

Part Number
OP0000030

Description

2-5

Units
6-10
11-20

OXYGEN TRANSDUCER, PARAMAGNETIC

21-30
1

Recommended Spare Parts Stocking Level: For IZS Option Installed

Part Number
042690000
042680000

B-8

Description
Valve Assy, 2-Way, On/Off
Valve Assy, 3-Way

2-5

Units
6-10
11-20
1
1

1
1

21-30
2
2

04188D DCN5752

APPENDIX C
Warranty/Repair Questionnaire
T300/T300M and M300E/EM
(04305G DCN5798)
CUSTOMER: ____________________________________

PHONE: ______________________________________

CONTACT NAME: ________________________________

FAX NO: ______________________________________

SITE ADDRESS: __________________________________________________________________________________
SERIAL NO.: ____________________________________

FIRMWARE REVISION: __________________________

1. Are there any failure messages? ____________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________

Please complete the following table:
PARAMETER

DISPLAYED AS

Range

UNITS

NOMINAL RANGE

Range

PPM, MGM1,2
PPB, UGM1

1 – 1000 PPM1
5 – 5000 PPM2

Stability

STABIL

PPM

CO Measure

CO MEAS

<1.0 PPM
with Zero Air
2500 – 4800 MV

CO Reference

CO REF

2500 – 4800MV

Measure/Reference Ratio

MR RATIO

–

1.1 – 1.3 W/ Zero Air

Pressure

PRES

In-Hg-A

-2”Ambient Absolute

Sample Flow

SAMP FL

cm3/min

800 ± 10%

Sample Temp

SAMPLE TEMP

°C

48 ± 4

Bench Temp

BENCH TEMP

°C

48 ± 2

Wheel Temp

WHEEL TEMP

°C

68 ± 2

Box Temp

BOX TEMP

°C

Ambient + 7 ± 10

Photo Drive

PHT DRIVE

250 mV – 4750 mV

Slope of CO Measurement

CO SLOPE

–

1.0 ± .3

Offset of CO Measurement

CO OFFSET

PPM

0 ± 0.3

Dark Cal Reference signal

REF DARK OFFSET

Dark Cal Measurement Signal

MEAS DARK OFFSET

Electric Test
1

OBSERVED
VALUE

T300, M300E

PPM

125 ± 50 mV
125 ± 50 mV
40 ± 2 PPM

T300M, M300EM

TELEDYNE API CUSTOMER SERVICE
Email: api-customerservice@teledyne.com
PHONE: (858) 657-9800 TOLL FREE: (800) 324-5190 FAX: (858) 657-9816
04188D DCN5752

C-1

APPENDIX C
Warranty/Repair Questionnaire
T300/T300M and M300E/EM
(04305G DCN5798)

2. Have you performed a leak check and flow check? ______________________________________________________
3. What are the failure symptoms? ____________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
4. What test have you done trying to solve the problem? ___________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
5. Please check these signals and verify the correctness. Look for the signals annotated on the diagram. What are the
peak-to-peak voltages?
TP 5

TP 2

TP 10

2v/DIV

10 mS

2v/DIV

.5 mS

5. If possible, please include a portion of a strip chart pertaining to the problem. Circle pertinent data.
Thank you for providing this information. Your assistance enables Teledyne API to respond faster to the problem that you
are encountering.
OTHER INFORMATION: ____________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________
________________________________________________________________________________________________

TELEDYNE API CUSTOMER SERVICE
Email: api-customerservice@teledyne.com
PHONE: (858) 657-9800 TOLL FREE: (800) 324-5190 FAX: (858) 657-9816
C-2

04188D DCN5752

APPENDIX D – Wire List and Electronic Schematics

04288D DCN5752

D-1

This page intentionally left blank.

D-2

04288D DCN5752

Interconnect List, M300E/EU, SNs 100 and greater
(Reference: 04217F)
Revision
A
B

Description
Initial release

Corrections: dropped +12V & +12V return from 03648, corrected +12V & Cgnd on 03829, cable 04238 to 036490100,
corrected incorrect TO PN on 036490100 from 03134 (relay board) to 04135, added L & N to AC-switched
conductors, switched L & N pins on PS1 & 2 of SK2
C
Change to expanded relay board
D
03648: corrected CO2 sensor wiring
E
Updated Part numbers
F
Added M300EU2 blower htrs, removed cbl to keybd J2, added I2C cbl fr mb to relay bd
FROM
Cable PN Signal
Assembly
PN
J/P
Pin Assembly
007290000 CBL, KEYBOARD/DISPLAY
D7
Display
DS0000025 CN1
1 Keyboard/Interface
D6
Display
DS0000025 CN1
2 Keyboard/Interface
D5
Display
DS0000025 CN1
3 Keyboard/Interface
D4
Display
DS0000025 CN1
4 Keyboard/Interface
D3
Display
DS0000025 CN1
5 Keyboard/Interface
D2
Display
DS0000025 CN1
6 Keyboard/Interface
D1
Display
DS0000025 CN1
7 Keyboard/Interface
D0
Display
DS0000025 CN1
8 Keyboard/Interface
DISP WRITE
Display
DS0000025 CN1
9 Keyboard/Interface
DGND
Display
DS0000025 CN1
10 Keyboard/Interface
Spare
Display
DS0000025 CN1
11 Keyboard/Interface
DISP_BUSY
Display
DS0000025 CN1
12 Keyboard/Interface
DISP_RETURN
Display
DS0000025 CN1
13 Keyboard/Interface
DISP_RETURN
Display
DS0000025 CN1
14 Keyboard/Interface
DISP_PWR
Display
DS0000025 CN1
15 Keyboard/Interface
DISP_PWR
Display
DS0000025 CN1
16 Keyboard/Interface
0364801
CBL ASSY, SYNC DEMOD TO MTHBD, DC, M300E/EU
DGND
Relay Board
041350000 J15
1 Sync Demod
+5V
Relay Board
041350000 J15
2 Sync Demod
AGND
Relay Board
041350000 J15
3 Sync Demod
+15V
Relay Board
041350000 J15
4 Sync Demod
AGND
Relay Board
041350000 J15
5 Sync Demod
-15V
Relay Board
041350000 J15
6 Sync Demod
DGND
Relay Board
041350000 J15
6 Sync Demod
DGND
Relay Board
041350000 J15
1 O2 Sensor
+5V
Relay Board
041350000 J15
2 O2 Sensor
+12V ret
Relay Board
041350000 J15
7 Small Blower Fan
+12V
Relay Board
041350000 J15
8 Small Blower Fan
O2O2 Sensor
P1
9 Motherboard
O2+
O2 Sensor
P1
10 Motherboard
CO2CO2 Sensor
0 Motherboard
CO2+
CO2 Sensor
V
Motherboard
036490100 CBL ASSY, AC POWER, M300E, SN >=100
AC Line
Power Entry
CN0000073
L
Power Switch
AC Neutral
Power Entry
CN0000073
N
Power Switch
Power Grnd
Power Entry
CN0000073
Shield
Power Grnd
Power Entry
CN0000073
Chassis
AC Line Switched
Power Switch
SW0000051
L
PS2 (+12)
AC Neu Switched
Power Switch
SW0000051
N
PS2 (+12)
Power Grnd
Power Entry
CN0000073
PS2 (+12)
AC Line Switched
Power Switch
SW0000051
L
PS1 (+5, ±15)
AC Neu Switched
Power Switch
SW0000051
N
PS1 (+5, ±15)
Power Grnd
Power Entry
CN0000073
PS1 (+5, ±15)
AC Line Switched
Power Switch
SW0000051
L
Relay
AC Neu Switched
Power Switch
SW0000051
N
Relay
Power Grnd
Power Entry
CN0000073
Relay
03787
CBL ASSY, BENCH HEATER, M300E
03787
Wheel Heater
Wiring harness 037990000 P1
1 Wheel Heater
AC Return
Wiring harness 037990000 P1
4 Wheel Heater
Bench Htr, 115V
Wiring harness 037990000 P1
2 Bench Htr
Bench Htr, 230V
Wiring harness 037990000 P1
3 Bench Htr
AC Return
Wiring harness 037990000 P1
4 Bench Htr
Chassis Gnd
Wiring harness 037990000 P1
5
03789
CBL ASSY, DC POWER, E SERIES
+15
PS1
PS0000011 SK1
1 Relay Board
+5
PS1
PS0000011 SK1
2 Relay Board
DGND
PS1
PS0000011 SK1
4 Relay Board
AGND
PS1
PS0000011 SK1
5 Relay Board
-15
PS1
PS0000011 SK1
6 Relay Board
+12
PS2
PS0000025 SK1
1 Relay Board
+12 RET
PS2
PS0000025 SK1
4 Relay Board

04288D DCN5752

Checked

Date

KV
BK
KV
RH

DCN

7/17/2002

2321

8/4/04
9/2/2005
1/4/2007
3/3/2007

3197
3694
4318
4411

TO
PN

J/P

042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000

J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3
J3

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

032960000
032960000
032960000
032960000
032960000
032960000
032960000
049210000
049210000
058810000
058810000
057020100
057020100
057020100
057020100

J2
J2
J2
J2
J2
J2
J2
P1
P1

1
2
3
4
5
6
6
5
6
1
2
10
4
8
2

P110
P110
P110
P110

SW0000051
SW0000051

L
N

PS0000025
PS0000025
PS0000025
PS0000011
PS0000011
PS0000011
041350000
041350000
041350000

SK2
SK2
SK2
SK2
SK2
SK2
J1
J1
J1

1
3
2
1
3
2
1
3
2

055010000
055010000
037250000
037250000
037250000

P1
P1
P1
P1
P1

1
2
1
2
3

041350000
041350000
041350000
041350000
041350000
041350000
041350000

J13
J13
J13
J13
J13
J13
J13

4
2
1
5
6
8
7

D-3

Interconnect List, M300E/EU, SNs 100 and greater
(Reference: 04217F)
Cable PN
03799

03829

03902

03995

04023

04103

0410401

D-4

Signal
Assembly
CBL ASSY, RELAY BD TO BENCH HTR, M300E
Wheel Heater
Relay Board
Bench Htr,115V
Relay Board
Bench Htr, 230V
Relay Board
AC Return
Relay Board
Chassis Gnd
Relay Board
CBL ASSY, DC POWER TO MOTHERBOARD, E SER
DGND
Relay Board
+5V
Relay Board
AGND
Relay Board
+15V
Relay Board
AGND
Relay Board
-15V
Relay Board
+12V RET
Relay Board
+12V
Relay Board
Chassis Gnd
Relay Board
CBL, RELAY BD TO SOURCE, M300E
IR Source Drv
Relay Board
IR Source Drv
Relay Board
CBL, MOTOR TO RELAY BOARD, M300E
GFC Drive - A
Relay Board
GFC Drive - B
Relay Board
Motor Return
Relay Board
Chassis Gnd
Relay Board
CBL, I2C, relay board to motherboard, E-series
I2C Serial Clock
Motherboard
I2C Serial Data
Motherboard
I2C Reset
Motherboard
I2C Shield
Motherboard
CBL, MTHR BR TO THERMISTORS, M300E
+5V Ref
Motherboard
Bench Temp
Motherboard
+5V Ref
Motherboard
Wheel Temp
Motherboard
+5V ref
Motherboard
+5V Ref
Motherboard
Sample Temp
Motherboard
Motherboard
Motherboard
Relay Board
Relay Board
Relay Board
CBL, DC PWR & SIGNAL DISTRIB, M300E/EU
+5V
Keyboard
DGND
Keyboard
+5V
Keyboard
SDA
Keyboard
SCL
Keyboard
KBINT
Keyboard
DGND
Keyboard
Shield
Keyboard
GND
Ethernet
+5V
Ethernet
+12V Ret
Rear Panel Fan
+12V
Rear Panel Fan
AGND
Flow Module
+15V
Flow Module
Cell Pressure
Flow Module
Pump Vaccum
Flow Module
Sample Flow
Flow Module
AGND
Flow Module
Measure
Sync Demod
PD Temp
Sync Demod
Reference
Sync Demod
AGND
Sync Demod
Dark Switch
Sync Demod
Sync Error
Sync Demod
Etest
Sync Demod
+12V Ret
Relay Board
+12V
Relay Board
+12V Ret
Relay Board
+12V
Relay Board

FROM
PN

J/P

041350000
041350000
041350000
041350000
041350000

J3
J3
J3
J3
J3

1
2
3
4
5

041350000
041350000
041350000
041350000
041350000
041350000
041350000
041350000
041350000

J14
J14
J14
J14
J14
J14
J14
J14
J14

1
2
3
4
5
6
7
8
10

041350000
041350000

J16
J16

041350000
041350000
041350000
041350000

J6
J6
J6
J6

057020100
057020100
057020100
057020100

P107
P107
P107
P107

Assembly

J/P

Wiring harness
Wiring harness
Wiring harness
Wiring harness
Wiring harness

037870000
037870000
037870000
037870000
037870000

J1
J1
J1
J1
J1

1
2
3
4
5

Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard

057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100

J15
J15
J15
J15
J15
J15
J15
J15
J15

1
2
3
4
5
6
7
8
9

1 IR Source
2 IR Source

009550500
009550500

P1
P1

1
2

1
2
3
4

GFC Motor
GFC Motor
GFC Motor
GFC Motor

052380200
052380200
052380200
052380200

P1
P1
P1
P1

1
2
3
4

3
5
2
6

Relay Board
Relay Board
Relay Board
Relay Board

045230100
045230100
045230100
045230100

P5
P5
P5
P5

Bench Temp Snsr
Bench Temp Snsr
Wheel Temp Snsr
Wheel Temp Snsr
Shield
Sample Temp Snsr
Sample Temp Snsr
O2 Sensor Therm/Htr
O2 Sensor Therm/Htr
O2 Sensor Therm/Htr
O2 Sensor Therm/Htr
Shield

003290500
003290500
003290500
003290500

P1
P1
P1
P1

1
2
1
2

019340200
019340200
043420000
043420000
043420000
043420000

P1
P1
P1
P1
P1
P1

1
2
3
1
4
2

041350000
041350000
041350000
057020100
057020100
057020100
041350000

J12
J11
J11
J106
J106
J106
J12

2
1
2
2
6
1
1

041350000
041350000
041350000
041350000
041350000
041350000
057020100
057020100
057020100
057020100
057020100
057020100
057020100

J11
J11
J11
J11
J11
J11
J109
J109
J109
J109
J109
J109
J109

1
2
7
8
3
4
5
6
2
9
4
1
3

057020100
057020100
057020100
058790000
058790000
058790000
058790000

J108
J108
J108

16
4
8
1
2
1
2

057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
041350000
041350000
041350000

J27
J27
J27
J27
J27
J27
J27
J27
J27
J4
J4
J4

6
13
5
12
1
7
14
2
9
1
2
3

042580000
042580000
042580000
042580000
042580000
042580000
042580000
042580000
043940000
043940000
040010000
040010000
040030100
040030100
040030100
040030100
040030100
040030100
032960000
032960000
032960000
032960000
032960000
032960000
032960000
041350000
041350000
041350000
041350000

J1
J1
J1
J1
J1
J1
J1
J1
J1
J1
P1
P1
J1
J1
J1
J1
J1
J1
J3
J3
J3
J3
J3
J3
J3
J12
J12
J12
J12

1
2
3
5
6
7
8
10
1
2
1
2
3
6
4
2
5
Shld
1
2
5
6
4
7
8
7
8
7
8

Relay Board
Relay Board
Relay Board
Motherboard
Motherboard
Motherboard
Relay Board
Shield
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Relay Board
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Shield
Motherboard
Motherboard
Motherboard
Bench Blower Fan 1
Bench Blower Fan 1
Bench Blower Fan 2
Bench Blower Fan 2

1
2
4
5

04288D DCN 5752

Interconnect List, M300E/EU, SNs 100 and greater
(Reference: 04217F)
Cable PN
04146

04211

04237

04339

05917

Signal
Assembly
CBL, SYNC DEMOD, M300E
DGND
Opto Pickup
Segmentg Gate
Opto Pickup
No Connection
Opto Pickup
DGND
Opto Pickup
M/R Gate
Opto Pickup
+5V
Opto Pickup
CBL, MTHBD TO CPU, (KB)
RXD(0)
CPU
RTS(0)
CPU
TXD(0)
CPU
CTS(0)
CPU
GND(0)
CPU
RXD(1)
CPU
RTS(1)
CPU
TXD(1)
CPU
CTS(1)
CPU
GND(1)
CPU
485+
CPU
485CPU
GND
CPU
Shield
CBL ASSY, 12V VALVE CBLS, M300E, SN>=100
+12
Relay Board
Zero/Span Drv
Relay Board
+12
Relay Board
Samp/Cal Drv
Relay Board
+12
Relay Board
Shutoff Vlv (M300E), Sample/Ref (M300EU) Relay Board
+12
Relay Board
Shutoff Vlv (M300EU)
Relay Board
CBL, CPU TO ETHERNET BD
shld
Ethernet
txd
Ethernet
dtr
Ethernet
rts
Ethernet
dcd
Ethernet
rxd
Ethernet
dsr
Ethernet
cts
Ethernet
gnd
Ethernet
CBL, BLOWER HTR CONFIG (M300EU ONLY)
Oven Temp
Oven Therm
+5V Ref
Oven Therm
Config Jumper
Oven Htr 1
Config Jumper
Oven Htr 1
AC Line
Oven Htr 1
AC Neutral
Oven Htr 2
Config Jumper
Oven Htr 2
Config Jumper
Oven Htr 2

04288D DCN5752

FROM
PN

J/P

050320000
050320000
050320000
050320000
050320000
050320000

J1
J1
J1
J1
J1
J1

CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026

Assembly

J/P

1
2
3
4
5
6

Sync Demod
Sync Demod
Sync Demod
Sync Demod
Sync Demod
Sync Demod

032960000
032960000
032960000
032960000
032960000
032960000

JP4
JP4
JP4
JP4
JP4
JP4

6
5
4
3
2
1

CN3
CN3
CN3
CN3
CN3
CN4
CN4
CN4
CN4
CN4
CN5
CN5
CN5

3
4
5
6
9
3
4
5
6
9
2
4
6

Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard
Motherboard

057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100
057020100

J12
J12
J12
J12
J12
J12
J12
J12
J12
J12
J12
J12
J12
J12

14
13
12
11
10
9
8
7
6
5
9
7
5
2

041350000
041350000
041350000
041350000
041350000
041350000
041350000
041350000

J7
J7
J7
J7
J7
J7
J7
J7

6
8
2
4
5
7
1
3

Zero/Span Vlv
Zero/Span Vlv
Samp/Cal Vlv
Samp/Cal Vlv
Shutoff Valve
Shutoff Vlv (Sample/Ref)
Shutoff Vlv (Sample/Ref)
Shutoff Valve (M300EU)

042680000
042680000
042680000
042680000
042690000
042690000
042690000
042690000

P1
P1
P1
P1
P1
P1
P1
P1

1
2
1
2
1
2
1
2

043940000
043940000
043940000
043940000
043940000
043940000
043940000
043940000
043940000

PL101
PL101
PL101
PL101
PL101
PL101
PL101
PL101
PL101

CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU
CPU

CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026
CP0000026

CN4
CN4
CN4
CN4
CN4
CN4
CN4
CN4
CN4

3
2
6
1
5
7
4
9

058800000
058800000
058810000
058810000
058810000
058810000
058810000
058810000

THERM
THERM
HTR1
HTR1
HTR1
HTR2
HTR2
HTR2

Cbl, Mthr Bd to Therm
Cbl, Mthr Bd to Therm
Blower Htr Config Plug
Blower Htr Config Plug
Cbl, Mthr Bd to Therm
Cbl, Mthr Bd to Therm
Blower Htr Config Plug
Blower Htr Config Plug

041030000
041030000
05918
05918
041030000
041030000
05918
05918

O2
O2
PLUG
PLUG
O2
O2
PLUG
PLUG

1
3
1
2
4
2
4
5

2
3
4
5
6
8
9
10
16
1
2
1
2
2
1
1
2

D-5

This page intentionally left blank.

D-6

04288D DCN 5752

04288D DCN5752

D-7

Sync Demod Page 1
03297k_1.sch

C
Sync Demod Page 2
03297k_2.sch

Sync Demod Page 3
03297k_3.sch

Title
Size

Number

Revision

Letter
Date:
File:
1

D-8

17-Sep-2008
Sheet of
N:\PCBMGR\03296cc-Sync Demod\protel\03296.DDB
Drawn By:
4

04288D DCN 5752

+5V RETURN

JP2
Power, Minifit, 10 Pin

VBIAS

-15V

499K

C17
10/35V, tantalum

R18 10K

C10
3

R17

1
2

0.1/100V, Film

C9
10/100V, Elect

R6
10M

MT1

R27
100

C33
0.1, Ceram

0.1, Ceram

+15V_A

R16
4.99K

+15V

+15V_B
TP

10.0K

+15V

ADJ

10/35V, tantalum

R34
7.5K

C27

+5VREF

10/35V, tantalum

C8
10/35V, tantalum
+5V RETURN

R50

6
3

2.2K

U3
OPA340UA

+15V_B

4.7UH

ETEST

R31
51K
R19

Analog GND
VCC

VOUT

C7
R30
51K

10K

VIN

R54

2 OHM 35W

10/35V, tantalum

DARKSWITCH

R25

LT1084CT

C19

4
1

SYNC ERROR

MICROFIT, 8 pin

+5VREF

10K

COREF TO A/D

10
9
8
7
6
5
4
3
2
1

Mounted on Bench
U14

-15V_A

JP1

Mounted on Bench

R35 2.2M

L2
C3 4.7UH
100UF/25V

VCC

C13

DETECTOR

R51
2.55k

JP1

0.022, Ceram

Signal

R26

75K

TP
TP3

-15V_A
TP

JP3

24.9K

DETECTOR+
0.047, Ceram, 1206 ChipC12

-15V

100K

C18

10/35V, tantalum

COMEAS TO A/D
PDETTEMP

R7 VALUE

+15V_A

4.7UH
C2
100UF/25V
C

PREAMP OUT

U2B
LF353
VERSION

MOUTING HOLE

1
2
3
4
5
6
7
8

7
5

R7
See Below

-15V_A

C68

10K

U2A
LF353

0.01, 100V, CERAMIC

AGND

R55
100

TP
TP4

VBIAS
See Page 3 for Bias supply

C1
100UF/25V

+15V_A

V= 50-55 VOLTS
TP

VCC TP

+15V

PREAMP

VCC

1
2
3
4
5
6
7
8
9
10

C11 100pf

+5V RETURN IS A SEPARATE GROUND
RETURN, IT MUST BE RUN DIRECTLY
BACK TO JP2-1. (30 MIL TRACE WIDTH)

DGND

R61
100

TEC CONTROL

VCC
PDETTEMP
B

GFC Wheel Position Interface

R71
0 ohm

JP4
Opto

1
2
3
4
5
6

-15V_B
TP

R28
10K
L4

-15V

M/R_DET

R73
10K

Thermistor

Thermistor Return

Detector

Detector Return

TEC Return

Detector is in a TO-37 package
(10 pin circular) with only pins
1,2,6,7,8 & 9 present.

-15V_B

4.7UH
C28
10/35V, tantalum

SEGMENT_DET

MICROFIT, 6 Pin

THERMISTOR+

Function

R74
0 ohm
VCC
+15V_A

U15
LM78L05ACM(8)

TDIN
TCK
TMS
TDOUT

C14
0.68uf/25V, Ceram
VCC

IN
NC

OUT
NC

+5VREF
1
5

C15
0.68uf/25V, Ceram

Note: 1. This schematics is for PCA 03296.
2. Use PCB 03295.

2
3
6
7

Programming

1
2
3
4
5
6

8
4

GND
GND
GND
GND

SEGMENT_DET

JP6

Revision History
Rev.K - DCN5067
-03 option, R7 value = 75K
Rev J - DCN 4242 - RJ
DCR 6270
Change C14 & C15 from 1206 to 1210,
From CA0000144 to CA0000201.
Clear out solder mask from Detector (JP1).
Add test points TP16 & TP17, 0.50 pad.

BM06B-SRSS-TB (mfg: JST)
A

DIGITAL GND

Printed documents are Uncontrolled.
1

04288D DCN5752

The information herin is the
property of TAPI and is
submitted in strictest
confidence for reference only.
Unauthorized use by anyone
for any other purpose is
prohibited. This document or
any informatin contained in it
may not be duplicated without
proper authorization,.
5

A
APPROVALS
DRAWN

CHECKED

Schematics for PCA 03296, Sync Demod
DATE

SIZE

APPROVED

LAST MOD.

17-Sep-2008

DRAWING NO.

REVISION

03297

SHEET

D-9

-15V_A
11

TP1
TP2

+15V_A

1
2

TP16

U5A
LF444

R56
619K

R401M

VCC

R9 100k

R20
10K

R11 100K
U10A
DG444

7
5

U5B
LF444

R57
3

324

TV1

R21

IN1

100K

10K

R29
10K

-15V_A

IN2

5
8

TV_ENAB'

IN1

U5D

R10

C30
0.22, Poly

100K

LF444

U5C

R58

COMEAS TO A/D

200

LF444

MEAS_2

R38

R39

C31
0.22, Poly

U10B
DG444

D5
R42
1M

C32
0.22, Poly

C21
1.0, Poly

R41
1M

110K
R14

U4A
LF444

TP17

U8A

-15V_A

R60
200

U8D
DG444

LM385

IN4

TP
TP10
D1

TP
14

DG444
2

R37

TP6

MEAS_1
-15V_A

+5VREF

R36

C29
0.22, Poly

R8
VR1
5K

+15V_A

C26
1000PF/50V, 0805

PREAMP_ENAB'

TP11

IN3

PREAMP OUT

C22 1.0, Poly

TP
C20
1.0, Poly

U8C
DG444
D

+15V_A

IN2

TP
TP7
DG444

REF_1

IN3

R13

U8B

R64
4.99K

TP
TP12

50K
R62
10

R43

R44

C34
0.22, Poly

U10C
DG444

39.2k
R15

R48
1M

R47

1
2

0.1, Ceram
C63

+5VREF

+15V_A

-VREF

C24 1.0, Poly

100k
R22

VCC

-15V_A

100K

6
7
5

C35
0.22, Poly

U4B
LF444

TV2

R12
100K

9
8
10

U4C
LF444

R59

COREF TO A/D

200

TP5
6

M/R Status

681

681 PREAMP_ENAB'
PCP
PC1

Segment Status

VCC IO
VCC INT
VCC INT

33
36
34
19
20
21
22
23
27
28
29
30
31
32
37
38
39

SYNC_10
TV2
TV_ENAB'
REF_2
REF_1
TP8
TP14
14
3

MEAS_2
MEAS_1

9
5

TV1
0.01 Ceramic

C61

R65
R53

16.9K
1M

6
7
11
12

AIN
BIN

SEGMENT_DET

80.6K

R24

PCP

5.1K

PC1

1N4148

C67

TP15
VCOUT

SF
ZEN

10
15

SYNC_10
R23

R66

0.1, Ceram

75K

10K

CD4046 PLL

0.1, Poly
C25
1.0, Poly

D-10

PCP

PC2

CA
CB
R1
R2

51K

C39

R67

C23
1.0, Poly

R32

PC1
VCIN
INH

DARKSWITCH

R49
1M

C37
0.22, Poly

VCC

4
17
25

SYNC ERROR

IO/GSR
IO/GTS1
IO/GTS2
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO

C36
0.22, Poly

REF_2

IO/GCK1
IO/GCK2
IO/GCK3
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO
IO

TDOUT

VCC

ETEST

43
44
1
2
3
5
6
7
8
12
13
14
16
18
40
41
42

TD OUT

R46

1M
U10D
DG444

GND

TD IN
TMS
TCK

R45

TP
TP9

GND
GND
GND

TDIN
TMS
TCK

9
10
11

U12
XC9536-15VQ44I(44)

26
15
35

VCC

IN4

M/R_DET

A
APPROVALS
DRAWN

CHECKED

Schematics for PCA 03296, Sync Demod
DATE

SIZE

APPROVED

LAST MOD.

17-Sep-2008

DRAWING NO.

REVISION

03297

SHEET

04288D DCN 5752

V= 65 +/- 1 VOLTS

BIAS SUPPLY

+15V_B

IN
NC

OUT
NC

C50
0.01, 100V, CERAMIC

C38
0.01, 100V, CERAMIC

1
5

VBIAS
C5

GND
GND
GND
GND

8
4

U1
LM78L12ACM(8)

D3
1N4148

10/35V, tantalum

D4
1N4148

D7
1N4148

D8
1N4148

C51
100/100V, ELECTROLYTIC

2
3
6
7

0.1, Ceram

C40
0.01, 100V, CERAMIC

R3 39.2k

+15V_B

C62
0.1, Ceram
+15V_A
3

C66

6
2

4
1

0.01, 100V, CERAMIC
F= 19-27 Khz

LF351

R33
20K
C64
0.1, Ceram

U10

C41
0.1, Ceram

C42
0.1, Ceram

C43
0.1, Ceram

C44
0.1, Ceram

C46
0.1, Ceram

V= 27 +/- 2 VOLTS
-15V_B

R52
100K

C65

C52
0.1, Ceram

330PF, Ceram, 0603 Chip

C53
0.1, Ceram

C54
0.1, Ceram

C55
0.1, Ceram

U10

C57
0.1, Ceram

-15V_A

MT2
MOUNTING HOLE

MT3
MOUNTING HOLE

MT4
MOUNTING HOLE

VCC

MT5
MOUNTING HOLE

U4D

C59
0.1, Ceram
MF1

MF2

MF3

MF4

MF6

C60
0.1, Ceram

U10

U12

C49
0.1, Ceram

C48
0.1, Ceram

14
12

LF444

MF5

04288D DCN5752

A
APPROVALS
DRAWN

CHECKED

Schematics for PCA 03296, Sync Demod
DATE

SIZE

APPROVED

LAST MOD.

17-Sep-2008

DRAWING NO.

REVISION

03297

SHEET

D-11

0.1

C4
1000PF

ISO_-15V

+12V

ISO_+15V

15
12
11

VOUT

VIN(10)

GATEDRV

U2
2
R1

4.75K

9.76K

GND
TP6

C5
220PF

3
5

OPA277
8

+VS2

VIN

TESTPOINT
TP1

7
1

+VS1

+V
SR
SSENSE

4
TESTPOINT
TP2

VREF
SENSE
VRADJ

D1
1N914

OFFADJ
OFFADJ
SPAN
4MA
16MA

VREFIN
VIN(5V)
GND

16
1

ISO_+15V

13
14

Q1
MOSFETP

7
6
8
10
9

IOUT+

XTR110

+12V

-VS1 GND1 -VS2
GND2
C7
0.1

-12V

ISO_+15V

HEADER 4X2

IOUT-

VINVIN+

ISO124

10
8

2
4
6
8

-12V
ISO_-15V

+15V

1
3
5
7

IOUTIOUT+

+15V
U1

C1
0.47

ISO+15
TP3

1
2
5
6
7

ISO_+15V

ISO_GND
TP5

C2
0.47

ISO_GND

ISO_-15V

0V
+VOUT
-VOUT

SIN

SOUT

DCP010515

C3
0.47
VIN-

TP4
ISO-15

VS
0V

JP1
JUMPER2

Error : LOGO.BMP file not found.

D-12

Date

Rev.

Change Description

Engineer

8/9/00

INITIAL RELEASE (FROM 03039)

The information herein is the
property of API and is
submitted in strictest confidence for reference only.
Unauthorized use by anyone
for any other purposes is
prohibited. This document or
any information contained
in it may not be duplicated
without proper authorization.
5

APPROVALS

DATE

PCA 03631, Isolated 0-20ma, E Series
A

DRAWN

CHECKED

SIZE

B
APPROVED

DRAWING NO.

REVISION

03632

LAST MOD.

SHEET

19-Jul-2002

04288D DCN 5752

VCC

10uF

DS3

KBD_A0
KBD_A1
KBD_A2

21
2
3
1

SCL
SDA

22
23

A0
A1
A2
INT

P00
P01
P02
P03
P04
SCL
P05
SDA
P06
P07
P10
PCF8575 P11
P12
P13
P14
P15
P16
P17

M8
S3

VCC

U3A

R2
1.0K

4
3
2
1

MF4

RN1
4.7K

5
6

Q
Q

+
DS5

MAINT_SW
LANG_SELCT

DS6

GRN LED
YEL LED
RED LED
LED 4
LED 5
LED 6
HORN
SPR_I/O_0

RI-1000 ONLY

Layout Instructions:
A1

2
3
4
5
6

MM74HC74A
VCC

300pF

RI-1000 ONLY

U4
VCC

OPT. MAINT SWITCH
S12

SDA

DISP_RET

BUSY

DISP_RET

4.7K

DISP_BUSY

SCL

VCC

6
7
8
9
10

SCL
KYBRD_INT

+5_DISP

DISP_RET

VCC

JP3

1
2
3
4
SDA 5

6
7
8
9
10

DISP_RET

C12

C10

220pF

+ C14

100uF

.1uF

DISP_RET
B

C17

Vss

SCL
SDA

1
2
3
14
15

AO
A1
A2
SCL
SDA

Vss
(U1)

220pF

+ C13

10uF

.1uF

(U2)

(U4)

(U45

PCF8574

C15

C16

.1uF

P0
P1
P2
P3
P4
P5
P6
P7
INT

1
2
3

RN2
4.7K

DISP_CN_A0
DISP_CN_A1
DISP_CN_A2

DISP_RET
C11

DISP_PWR

VCC

4.7K

SCL
KYBRD_INT

DISP_WR
DISP_BUSY

1500uF

VCC
1
2
3
4
SDA 5

1
3
5
7
9
11
13
15

VCC

+5_DISP
+5_DISP

2
4
6
8
10
12
14
16

DISPLAY CONTROL
U5

NOTES:
1. This schematic is based on the
PWB PN, 03974 and applies to
PCA PN, 03975

TP9

INT

4
5
6
7
9
10
11
12

+5_DISP

DISP_PWR_EN must be
high for display to be
powered.

J3 TO/FRM DISPLAY
P0
P1
P2
P3
P4
P5
P6
P7

SCL
SDA

2
4

DISPL CONTROL (DISP_CN_A0 -A1)
011

KYBRD_INT

SCL

TP8

DISP_PWR

1
3

KEYBOARD (KBD_A0 - A2)
111

TP5

SDA

SCL
SDA

JP2 I2C TERMINATION

KYBRD INT

TP4

+5_DISP

14
15

PCF8574

DEFAULT ADDRESS SELECTS FOR I2C TO PARALLEL
DECODERS:

JP1
ADRS SLCTS

2
4
6
8
10
12
14
16
18
+5_DISP
TP3

TP7

SCL
SDA

AO
A1
A2

DISPLAY DATA
DISP_DA_A0
DISP_DA_A1
DISP_DA_A2

S13

VCC
DISP_PWR

KYBRD_INT

SPR_I/O_2
OPT. LANG. SWITCH

1
2
3

SPR_I/O_1

TP2

TP6

9
8

Q
Q

2
3
4
5
6
7
8
9
10

KBD_A0
KBD_A1
KBD_A2
DISP_CN_A0
DISP_CN_A1
DISP_CN_A2

SPR_I/O_0

VCC

TP1

PRE
CLK
D
CLR

MM74HC74A

MAINT_LED_V+
MAINT_LED
LANG_SELCT

3M-2514-6002UB

GND

10
11
12
13

RN5
4.7K

1
3
5
7
9
11
13
15
17

1
2
3
4
5
6
7
8
9
10
11
12
13
14

T8201

MAINT_SW

DISP_DA_A0
DISP_DA_A1
DISP_DA_A2

U3B
VCC

J4
MAINT SW
MAINT SW RET
MAINT LED V+
MAINT LED
LANG SW
LANG SW RET
SPR I/O_0
SPR I/O RET
SPR I/O_1
SPR I/O RET
SPR I/O_2
SPR I/O RET

1. Minimum trace width 8 mil would like to have 10
mil traces if possible.
2. Please run traces on both and backside but where
possible fill one side with GND.
3. Minimum width for +5_DISP, DISP_PWR,
DISP_RET is 40 mil, except to test points.
4. Minimum width for VCC, GND, Vdd, Vss is 30
mil, except to test points

SONALERT

4
5
6
7
9
10
11
12

D
G

+5_DISP

6
5
4

SI3443DV

2
3
4
5
6

PRE
CLK
D
CLR

DS4

Vss

MF3

4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20

M10

220

JP5
DISP_PWR_OVR

DISP_WR
DISP_BUSY
DISP_PWR_EN
MAINT_LED

1
2

MCP120T
1

Vdd

RST

Vss

74C923

MAINT_LED_V+

RED

KEYBOARD, LED & HORN

12
11
9
8

X1
X2
X3
X4

10
9
8
7
6

MMBT3904
R20

YEL

AVL

1
2
3
4
5

+ C6

.1uF

DS2

RN3

GRN

VCC

Vdd

C1
S6

DS1

Vdd

19
18
17
16
15

D_A
D_B
D_C
D_D
D_E

Y1
Y2
Y3
Y4
Y5
OSC
KBM

Vcc

1
2
3
4
5
6
7

Vdd

Vss

4.85V DTCT
SPR_I/O_1
SPR_I/O_2
A
Title

Keyboard/Display Interface

JP4
DISP_RET
Size
B
Date:
File:

04288D DCN5752

Number

Revision

03976

15-Mar-2002
Sheet of
N:\PCBMGR\RELEASED\03975yh\Protel\03975b.ddb
Drawn By:
6

D-13

+15V

R2
1.1K

S1
ASCX PRESSURE SENSOR

1
2
3
4
5
6

VR2

D
3

C2
1.0UF
1
LM4040CIZ

TP4
TP5
S1/S4_OUT S2_OUT

TP3
S3_OUT

TP2
10V_REF

TP1
GND
3
2
1

S2
ASCX PRESSURE SENSOR

1
2
3
4
5
6

+15V

6
5
4

MINIFIT6
+15V

R1
499
S3
FLOW SENSOR
FM_4

1
2
3

+15V

1
2
3
4

C1
1.0UF
1

CN_647 X 3

VR1

LM4040CIZ

C3
1.0

CON4

D-14

APPROVALS

DATE

SCH, PCA 04003, PRESS/FLOW, 'E' SERIES

DRAWN

A
CHECKED

SIZE

APPROVED

LAST MOD.

DRAWING NO.

REVISION

04354

D
SHEET

3-Dec-2007

04288D DCN 5752

C38

18
19

0.15 uF, ceramic

G1
G2

DIGIO1

IOW
DIGIO2
DIGIO3
DIGIO4
TEMP
DACV
WRDAC
VFPROG
CHGAIN
VFREAD

0X32C

ENAB2

U1
74HC688

TP2

VCC

3
18
5
16
7
14
9
12
2
17
4
15
6
13
8
11

B0
B7
B1
B6
B2
B5
B3
B4
A0
A7
A1
A6
A2
A5
A3
A4

U4B

4
3
2
1

Pins 1&2 shorted on PCA
JP7
AEN

PRE
CLK
D
CLR

IOEN

A1
A2
A3
A4
A5
A6
A7
A8

2
3
4
5
6
7
8
9

74HC74

2.2K, 5%
VCC

1.2 uF, 6.3V ceramic

2
74HC32
U50A

1
4
5
6
19

INT
A0

6
5

CLK
IACK
INT
A0
RESET

17
16
18

74HC08
U50B
A13

I2C_DRV_RST

U50C
6

4
3
2
1

8
10

JP4

IRQ10
JP5

shorted - sldr side

IRQ12

74HC08
U6C

74HC08
12

8
11

74HC32
U3
LTC699CS8

74HC08

JP2
4

74AHC1GU04

SCL

7
8
9
11
12
13
14
15

DB0
DB1
DB2
DB3
DB4
DB5
DB6
DB7

IDC-HEADER

IOR
IOW

VCC

2
SCL
DGND

MICROFIT-8
2

VSS

JP6

IDC-HEADER
B

WDI

RESET

C3
7
0.15 uF, ceramic

I2C_RESET
SHDN
SHDN
U5B
10
11
12
13

U51A
1
+12V

1
2
3
4
5
6
7
8

INT

shorted - sldr side
JP3

D0
D1
D2
D3
D4
D5
D6
D7

SDA

47k, 5%
R5

VCC
VCC

VCC

U39
1

1
2

A15

INLINE-6
J106
KBINT
SDA

CS
RD
WR

U50D
A14

VCC

GND
GND
GND

64
63
62
61
60
59
58
57
56
55
54
53
52
51
50
49
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33

PRE
CLK
D
CLR

1
2
3
4
5
6

3
4
8

GND
GND
J101B
OSC
PC104
+5V
BALE
TC
DACK2
IRQ3
IRQ4
IRQ5
IRQ6
IRQ7
SYSCLK
REFRESH
DRQ1
DACK1
DRQ3
DACK3
IOR
IOW
SMEMR
SMEMW
(KEY)
+12V
ENDXFR
-12V
DRQ2
-5V
IRQ9
+5V
RESETDRV
GND

IOR
IOW

U5A 74HC74

J107
DGND
SDA
VCC
SCL
I2C_RESET

U10
PCF8584

SYSCLK
4

U51B

NOT INSTALLED

LED, RED, smt 1206
R4
2.2K, 5%

C39

2.2K, 5%

R38
2.2K, 5%

IOW 1
3

R25

R24

TP56

74HC08

VCC

DS5

VCC

TC1

1
JITO-2-DC5F-10OHM
4

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16

MICROFIT-16

IDC-HEADER
A12

RN16
47Kx8

Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8

DI6
DI4
DI2
DI0
DO6
DO4
DO2
DO0
DI7
DI5
DI3
DI1
DO7
DO5
DO3
DO1

DO0
DO1
DO2
DO3
DO4
DO5
DO6
DO7
DI0
DI1
DI2
DI3
DI4
DI5
DI6
DI7

12
13
14
15
16
17
18
19

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

12
5

1
2
3

HEADER3-DEFAULTED-1

JP1
2

18
17
16
15
14
13
12
11

J108

D1
D2
D3
D4
D5
D6
D7
D8
74HC574

G1
G2

U4A

ADDR=0x360 (DEFAULT)
ADDR = 0x320 (JP1 INSTALLED)

I2C_RESET

P=Q

1
19

D0
D1
D2
D3
D4
D5
D6
D7
U51D

74HC74

PRE
CLK
D
CLR

9
8
7
6
5
4
3
2

U7
74HC541
IOR

10
11
D0 12
13

D0
D1
D2
D3
D4
D5
D6
D7

74HC32

0X32F

OC
CLK

R59
47k, 5%

1
11

VCC

D[0..7]

VCC

GND

PC104CD

TP44

DIGIO0

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40

VCC

J102

1
2
3
4
5
6
7
8
9
10
11
13
14
15
16
17

0X32D
0X32E

GND
A0
A1
A2
A3
A4
A5
A6
A7
A8
A9
A10
A11
A12
A13
A14
A15
A16
A17
A18
A19
AEN
IOCHRDY
D0
D1
D2
D3
D4
D5
D6
D7
IOCHECK

5
U6A

Y0
Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8
Y9
Y10
Y11
Y12
Y13
Y14
Y15

32
A0
31
A1
30
A2
29
A3
28
A4
27
A5
26
A6
25
A7
24
A8
23
A9
22
A10
21
A11
20
19 A12
18 A13
17 A14
16 A15
15
14
13
12
11 AEN
10
D0
9
D1
8
D2
7
D3
6
D4
5
D5
4
D6
3
D7
2
1

A
B
C
D

10
5

23
22
21
20

J101A
PC104

1
2
3
4
6
7
8
9

U2
74HC154

U6D
3

IOEN

11
13

PRE
CLK
D
CLR

Q
Q

9
8

SHDAC

74HC74

74HC08
74HC32
R61
47k, 5%

A
KBINT
Title

Notes:
IDC-HEADER

Schematic for E Series Motherboard PCA 05702

1) This schematic is for PCA #05702
2) This schematic is for PCB 05701

Size
Orcad B
Date:
File:

04288D DCN5752

Number

Revision
A

05703

17-Jun-2008
Sheet 1of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

D-15

1
2
3
4
5
6
7
8
9

RX1
TX1
RS-GND1

DS2

RX for Com1

10k, 1%

R12
4.9K, 5%
1

1
2
3
4
5
6
7
8
9

3
4
5
6
1
2
3
4

7
9

DB9M

1
2
3
4

DTE

TV ARRAY
11

8
7
6
5
R2
2.2K, 5%VCC

R1
2.2K, 5%

R13

R14

NOT INSTALLED
DS4

8
7
6
5

VCC

NOT INSTALLED

R10
NOT INSTALLED

RX for Com2

LED, RED, smt 1206

TX for Com2

LED, GRN, smt 1206

SW1001
SW PUSHBUTTON-4PDT

DS3
1

12
TV2
SMDA15LCC

NC
RXD
TXD
NC
GND
NC
RTS
CTS
NC

INLINE-12

J1013

DCE side of switch is side towards pin 1,
2

RX0
RTS0
TX0
CTS0
RS-GND0
RX1
RTS1
TX1
CTS1
RS-GND1

1
2
3
4
5
6
7
8
9
10
11
12
13
14

R111

Com1 - RS232-A

J12

-15V

R11
4.9K, 5%

LED, GRN, smt 1206

TV1
TV ARRAY
SMDA15LCC

8
7
6
5

TX for Com1

1 2

LED, RED, smt 1206

1
2
3
4

1
2

8
7
6
5

DS1
2

1
2
3
4

RTS1
CTS1
D

Com2 - RS232-B/RS485

J1010
DB9 FEMALE

MT6

MT7

MT8

MT9

TP17

+12V

+12VRET +15V

-15V

VCC
1

MT1

MT2

MT3

MT4

MT5

TP18

B
1

TP16

TP15

TP14

TP13

MOUNTING HOLE

MOUNTING HOLE MOUNTING HOLE MOUNTING HOLE

MOUNTING HOLE

J15
AUX DC

POWER IN

+12V
+12RET
DGND
+15V
-15V
AGND
+5V
AGND
EGND
CHASGND

8
7
1
4
6
3
2
5
9
10

VCC
U51C
9
8
10
D1

10 uF, 35V, TANTALUM
+ C2

C1 +
74HC08
10 uF, 35V, TANTALUM

MOLEX-10
MBRS340CT
D9

D1, D9 & R35 must be
within 1" of J15

MBRS340CT
R35
A

A
NOT INSTALLED

Title
Schematic for E Series Motherboard PCA 05702

Size
Orcad B
Date:
File:
1

D-16

Number

Revision
A

05703

17-Jun-2008
Sheet 2of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

04288D DCN 5752

-15V

+15V

0.15 uF, ceramic

VREF

1
11
D0
D1
D2
D3
D4
D5
D6
D7

U20C
9
8

CLK

2
3
4
5
6
7
8
9

D1
D2
D3
D4
D5
D6
D7
D8

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

CSDACA
CSRANGE1
CSDACB
CSRANGE2

4
3
2
1

TV3

TV ARRAY

C4
C5
10000 pF 10000 pF

2
4
6
8

1
3
5
7

1
2
3
4
5
6
7
8
9
10

IDC-8

OP-AMP, PRECISION DUAL

DAC0
DAC1
DAC2
DAC3

C13
C19
10000 pF 10000 pF

L5
L6
L7
L15

0
0G
1
1G
2
2G
3
3G

TERMBLOCK-8

FE BEAD

J22
DAC3V

1
2
3
4
5
6
7
8

SMDA15LCC

J23

CSDACA
CSDACB

J1020

TV4
TV ARRAY

SMDA15LCC

IDC-8

+
7

OC
CLK

WRDAC

1
3
5
7

74HC32

0.15 uF, ceramic

U29B

U30
74HC574

1
3
5
7

5
6
7
8

0.15 uF, ceramic

4
5

IOW

-15V

2
4
6
8

C20
10000 pF

L2
L3
L4

5
6
7
8

C53

U20B
IOW

2
4
6
8

TC2

J21

R63
10k, 1%

DACV

1
3
5
7

IDC-8

DACV

OP-AMP, PRECISION DUAL
1

1
3
5
7

C15
10000 pF

4
3
2
1

40K
R15

2
4
6
8

4
3
2
1

2
4
6
8

DAC RANGE & OFFSET PROGRAM

C7
10000 pF

10000 pF
C21
FE BEAD

J19

U29A

ANALOG VOLTAGE & CURRENT OUTPUTS

4
3
2
1

+15V

TP21

ISOLATED 0-20MA OPTIONAL BOARDS

5
6
7
8

1
2
3
4
5
6
7
8
9
10

0.15 uF, ceramic

MICROFIT-10
74HC32

U35A
OP-AMP, PRECISION QUAD

TP27

18.7K
R19

4
2
1

10k, 1%

OP-AMP, PRECISION QUAD

15
10

SHDAC

VCC

C17

18.7K

+15V

DAC1V

-15V

R23
10k, 1%

MBRS340CT

0.15 uF, ceramic

4
2
1

-15V
OP-AMP, PRECISION QUAD

04288D DCN5752

R20

W3
B3
AGND3

18
20
17

DAC3V

-15V

TP33
+15V

U36D

W4
B4
AGND4

8
6
5

R21
10k, 1%

-15V
OP-AMP, PRECISION QUAD
A

Title
Schematic for E Series Motherboard PCA 05702

+15V

VCC

0.15 uF, ceramic

D7 and D8
Must be located
within 1" of U32 & U34

OP-AMP, PRECISION QUAD
U36C

POT, DIGITAL

+
14

DAC1V

D7
12

C11

18.7K
19

U35D

-15V

R18
10k, 1%

DAC3

R22

POT, DIGITAL

W2
B2
AGND2

DGND

OP-AMP, PRECISION QUAD
8

TP32

+15V

U36B

0.15 uF, ceramic

U35C

8
6
5

DAC2V

TP29

VCC

W4
B4
AGND4

18.7K

RS
SHDN

+15V

18
20
17

22
24
21

C16

DAC1
W3
B3
AGND3

VCC

C14
0.15 uF, ceramic

W1
B1
AGND1

CS
SDI
CLK
SDO

0.15 uF, ceramic

D0
CLK

0.15 uF, ceramic

-15V

11
12
14
13

C12

C18

5
6
7
8

-15V

DGND

VOA
GND
VCC
VOB

W2
B2
AGND2

DOUT
CS
DIN
CLK

SOCKET U33

+15V

U35B

VCC

4
3
2
1

DAC, 12 BIT

RS
SHDN

VCC

TP28

CS
SDI
CLK
SDO

CSDACB
D0
CLK

SHDAC

R17

15
10

22
24
21

DAC 2

U33
W1
B1
AGND1

D0
CLK

11
12
14
13

DAC, 12 BIT

5
6
7
8

SOCKET U31

VOA
GND
VCC
VOB

DUAL DAC A2
U34

U32

U31
DOUT
CS
DIN
CLK

R16

DAC0V

DUAL DAC A1
4
3
2
1

CSDACA
D0
CLK

OP-AMP, PRECISION QUAD
+
3

U36A

TP26

C9
+15V

D[0..7]

+15V 0.15 uF, ceramic
C10

-15V
OP-AMP, PRECISION QUAD

MBRS340CT

Size
Orcad B
Date:
File:

Number

Revision
A

05703

17-Jun-2008
Sheet 3 of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

D-17

5
10

+15V
C

RN14
100Kx8

+15V
5
10

J109

C40
7

U52

-15V

C44
13
2
3
18
14
15
16
17

VREF
NC
NC
ENB
A3
A2
A1
A0

AN MUX

3
14
11
6
1
16
9
8

S1
S2
S3
S4
IN1
IN2
IN3
IN4

2
15
10
7
12
4
5
13

D1
D2
D3
D4
VCC
-VS
GND
+VS

1
CHGAIN
IOW

1
3
2

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

10 uF, 35V, TANTALUM

10
5

C50

D4
VCC

D3
D7
C51
0.15 uF, ceramic
D0

SEL60

IOW

D0
D1
D2
D3
D4
D5
D6
D7

74HC32

2
3
4
5
6
7
8
9

D1
D2
D3
D4
D5
D6
D7
D8

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

TP54

7
8
9
10
11
12
13
14
15
16
17

DB4
RDMBYTE
DB3
GND
U57
DB7
TIE
TIE
DB0
Xilinx CPLD
TDI
TMS
TCK

TC8
TIE
TIE
TIE
TIE
FREQ
TIE
TIE
VCCIO
GND
TDO
SEL60

39
38
37
36
35
34
33
32
31
30
29

VCC

C52
0.15 uF, ceramic

SEL60

TP55

IOR

SA
SB
SC
START

VFREAD

MSB
MID
LSB

A
Title

Date:
File:
3

TP57

Orcad B

X1
MB100H-4.8MHZ

100

Size

18
19
20
21
22
23
24
25
26
27
28

TP53

OE
CLK

TP52

1
11

4
6

TP51

U60
74HC574

TP50

RDMSB
TIE
DB1
VCCINT
IOR
GND
SA
SB
SC
READ
START

D[0..7]

U59B

VCC

PLACE 100
OHM
RESISTOR AS
CLOS AS
POSSIBLE TO
X1 AND X2

6
5
4
3
2
1
44
43
42
41
40

1
2
3
4
6
7
8
9

D6
D2

VCC

74HC32

VFPROG

1
TP48

R47 and R48 reduce the gain
for analog inputs by 1%, so
that we can read slightly above
full scale, to prevent overflow
of ADC reading

0.15 uF, ceramic
R49
100

-15V

OE
CLK
D1
D2
D3
D4
D5
D6
D7
D8

C54

X2
JITO-2-DCA5AE-4.8MHZ

C49

U59A

2
3
4
5
6
7
8
9

AD652KP

1.2 uF, 6.3V ceramic

TC6

D0
D1
D2
D3
D4
D5
D6
D7

VCC

+15V

U58
74HC574

10 uF, 35V, TANTALUM
R46
1.1K, 5%

C48
1
2
3
4

RN17
100Kx8

SHDN

18
17
16
15
14

0.15 uF, ceramic

-15V

1
11

C45

COMP+
COMPAGND
GND
FOUT

R48 200

VOLTAGE REF

TP49

OP OUT
OPOP+
5VI
10VI

100 R47

VREF

DACMUX

4
5
6
7
8

TP1

VCC

U55
DG444DY

+15V

U54

.022 uF, 50V

C46
0.15 uF, ceramic

VCC

C47
U56
1.2 uF, 6.3V ceramic
8
NC
NC
7
NC
VIN
6
VOUT NR
5
TRIM GND
1

C43
0.15 uF, ceramic

GND

1M, 1%, 1206 CHIP
R45
3
2
1
20
19

-VSS

TC7

U53

TP3
AGND

TEMPMUX

+VSS

R45 induces an
offset in analog
signal to give a
'live 0' for sensors
with 0 or slightly
negative output

CH14
CH13
CH12
CH11
CH9
CH8

0.15 uF, ceramic 2

OP-AMP, PRECISION
6

NC
+VS
NC
REF
NC

CH11
CH12
CH13
CH14

C42

8VI
OPT10V
-VS
COS
CLK

CH7
CH8

OUT

9
10
11
12
13

CH6

IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8
IN 9
IN 10
IN 11
IN 12
IN 13
IN 14
IN 15
IN 16

RDLSB
DB2
DB6
TIE
TIE
TIE
DB5
VFCLK
ICLK
VCCINT
TIE

19
20
21
22
23
24
25
26
11
10
9
8
7
6
5
4

CH1
CH2
CH3
CH4

VREF

D-18

+
10 uF, 35V, TANTALUM

J110

MICROFIT-12

C41

0.15 uF, ceramic

CH9

100

C55
RN15
100Kx8

MICROFIT-12

1
2
3
4
5
6
7
8
9
10
11
12

R43

ANALOG INPUTS

9
8
7
6
4
3
2
1

CH7
CH6
CH4
CH3
CH2
CH1

9
8
7
6
4
3
2
1

1
2
3
4
5
6
7
8
9
10
11
12

-15V +15V

Schematic for E Series Motherboard PCA 05702
Number

Revision
05703

17-Jun-2008
Sheet 4 of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

04288D DCN 5752

+15V

+5VANA
U23
1
3

5
4
+ C60
10 uF, 35V, TANTALUM

LP2981IM5

IN
OUT
ON/OFF NC
GND

BYPASS CAPS
MUST BE WITHIN
1/2" OF THE
REGULATOR
INPUT/OUTPUT
PINS

C29
1 uF

D[0..7]

+5VANA
VCC

+15V

XT1
U48
MAX382CWN
9
14
15
4
3
2
17
16
18
1

TEMPMUX

D0
D1
D2

SHDN

OUT
+VSS
GND
VENB
A0
A1
A2
RS
WR

J27
THERMISTER
THERMISTER1

5
6
7
8
13
12
11
10

IN 1
IN 2
IN 3
IN 4
IN 5
IN 6
IN 7
IN 8

THERMISTER2
THERMISTER3
THERMISTER4
THERMISTER5
THERMISTER6
THERMISTER7
THERMISTER8

IOW

2
3
4
6
7
8
9
10

U59D
TEMP

THERMISTER6
THERMISTER5

12
11

74HC32

MICROFIT-14

RN20
10Kx9, 2%

1
2
3
4
5
6
7
8
9
10
11
12
13
14

B
+15V-15V
RN18

U49
DACMUX
10K
R34

C36 0.15 uF, ceramic
VCC

C37

2
15
10
7
12
4
5
13

D1
D2
D3
D4
VCC
-VS
GND
+VS

S1
S2
S3
S4
IN1
IN2
IN3
IN4

3
14
11
6
1
16
9
8

1
2
3
4
1
2
3
4

8
7
6
5

1Kx4
8
7
6
5

DAC0V

DAC0V
DAC1V
DAC2V
DAC3V

DAC1V
DAC2V
DAC3V

DAC0
DAC1
DAC2
DAC3

0.15 uF, ceramic
DG444DY

10Kx4
RN21

A
Title
Schematic for E Series Motherboard PCA 05702

Size
Orcad B
Date:
File:
1

04288D DCN5752

Number

Revision
A

05703

17-Jun-2008
Sheet 5of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

D-19

CONTROL INPUTS

5
10

VCC

RN3
510x8

TP7
C

RN2
15Kx8

U11
1

74HC541

10000 pF

D[0..7]

R27 R28 R29
100 100 100
C97

R26
100

R31 R32 R33
100 100 100

R30
100

L23
L24
L26

C62

C59

L25 FE BEAD

2
3

15
14

4
5

13
12

6
7

11
10

330 pF, 50V

330 pF, 50V
C102

C98

C96

C100

330 pF, 50V
U13
PS2702-4

C103

11
10

D0
D1
D2
D3
D4
D5
D6
D7

18
17
16
15
14
13
12
11

Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8

6
7

A1
A2
A3
A4
A5
A6
A7
A8

C101

13
12

10000 pF
EXT_+5V_OUT

C22

C56

C34

TERMBLOCK-10

4
5

2
3
4
5
6
7
8
9

C57

C23

15
14

L22 FE BEAD

C35

EXTERNAL
CONTROL
IN
A

2
3

DIGIO0
IOR

C99

1
2
3
4
5
6
7
8
9
10

L19
L20
L21

J1004

1
19

G1
G2

9
8
7
6
4
3
2
1

U12
PS2702-4

330 pF, 50V

Place these termination resistors at the end of each data
line. Each data line
should be laid out as a daisy-chain, the signal passing
from one IC to the next.

VCC

C61

C58

10000 pF

B
5
10

8
7
6
5

RN4
15Kx8

U14

RN1

1
2
3
4
L28
L29
L30
L27

2
3

15
14

4
5

13
12

6
7

11
10

A1
A2
A3
A4
A5
A6
A7
A8

DIGIO4

D0
D1
D2
D3
D4
D5
D6
D7

L11

C66

10000 pF

EXT_+5V_OUT

Title
Schematic for E Series Motherboard PCA 05702

C65

C63

C64

C25

FE BEAD

Size
Orcad B
Date:
File:

D-20

18
17
16
15
14
13
12
11

IOR

74HC541

10000 pF

Y1
Y2
Y3
Y4
Y5
Y6
Y7
Y8

1
19

D[0..7]

L10

C24

1
2
3
4
5
6
7
8
9
10
TERMBLOCK-10

2
3
4
5
6
7
8
9

U15
PS2702-4

J1006

EXTERNAL
CONTROL
IN
B

G1
G2

9
8
7
6
4
3
2
1

510x4

Number

Revision
A

05703

17-Jun-2008
Sheet 6of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

04288D DCN 5752

5
10

VCC
DIGITAL

OUTPUTS

RN10
510x8

D
U22

9
8
7
6
4
3
2
1

C80

PS2702-4
16

C82
10000 pF

TP19
SHDN

SHDN

4
DIGIO2
IOW

U24
74HC574

U6B

1
11

5
D0
D1
D2
D3
D4
D5
D6
D7

74HC32

2
3
4
5
6
7
8
9

15
14

4
5

13
12

6
7

11
10

C81
10000 pF

OE
CLK
D1
D2
D3
D4
D5
D6
D7
D8

2
3

C79

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

U25

D[0..7]

PS2702-4
16

2
3

15
14

4
5

13
12

6
7

11
10

L43
L44
L45
L46 FE BEAD

J1017
1
2
3
4
5
6
7
8
9
10
11
12

L48
L49
L50
L47 FE BEAD

C84

C86

FE BEAD

C83

TERMBLOCK-12

10000 pF

L12

A STATUS OUTPUTS

C85
C26
10000 pF

C27

RESETTABLE FUSE, 0.3A, 60V

VCC
5
10

L13

VCC
C

FE BEAD

RN12
510x8

DIODE, SCHOTTKY

9
8
7
6
4
3
2
1

U26
B

SHDN

U27
74HC574

U20D
12

DIGIO3
IOW

1
11

IOW

13
74HC32

D0
D1
D2
D3
D4
D5
D6
D7

2
3
4
5
6
7
8
9

OE
CLK
D1
D2
D3
D4
D5
D6
D7
D8

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

PS2702-4
16

2
3

15
14

4
5

13
12

6
7

11
10

U28

PS2702-4
16

2
3

15
14

4
5

13
12

6
7

11
10

EXT_+5V_OUT

B
C90
L52
L53
L54

B STATUS OUTPUTS

C89

C87

10000 pF
J1018

L51 FE BEAD
1
2
3
4
5
6
7
8
9
10

L56
L57
L58
L55 FE BEAD
C28

10000 pF

C88

L14

TERMBLOCK-10

C92

C91

1
2
3
4
5
6
7
8
RET
GND

C94
10000 pF
C93

10000 pF
Title
Schematic for E Series Motherboard PCA 05702

Size
Orcad B
Date:
File:
1

04288D DCN5752

Number

Revision
A

05703

17-Jun-2008
Sheet 7of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

D-21

5
10

VCC
DIGITAL

IOW

1
11

10
D0
D1
D2
D3
D4
D5
D6
D7

74HC32

2
3
4
5
6
7
8
9

OE
CLK
D1
D2
D3
D4
D5
D6
D7
D8

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

15
14

4
5

13
12

6
7

11
10

U18

D[0..7]

PS2702-4
16

2
3

15
14

4
5

13
12

6
7

11
10

C70

2
3

10000 pF
C69

9
8
7
6
4
3
2
1
U17
74HC574

U59C
9
DIGIO0

PS2702-4
16

C68

C67

U16
SHDN

SHDN

OUTPUTS

RN7
510x8

10000 pF

L32
L33
L34
L31 FE BEAD

J1008
1
2
3
4
5
6
7
8
9
10
11
12
13
14

L36
L37
L38
L35 FE BEAD

CO_EXT_RET

CONTROL OUTPUTS

TERMBLOCK-14

5
10

C74

C72

L59 FE BEAD
VCC

EXTERNAL CONNECTOR
SOLDER SIDE

C73

RN5
510x8

C71

C95

10000 pF

10000 pF
10000 pF

U21
74HC574

2
3

15
14

DIGIO4
IOW

1
2
74HC32

1
11

3
D0
D1
D2
D3
D4
D5
D6
D7

2
3
4
5
6
7
8
9

OE
CLK

4
5

13
12

D1
D2
D3
D4
D5
D6
D7
D8

Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8

19
18
17
16
15
14
13
12

6
7

11
10

+12V

L40
L41
L42
L39 FE BEAD
10000 pF

D2
RELAY SPDT
4
1
3

K1
2
5

DIODE, SCHOTTKY

C75

U20A

C78

SHDN

C77

PS2702-4
16

C76

U19

9
8
7
6
4
3
2
1

10000 pF

J1009

Q1
R58

+12V

1
2
3
4
5
6
7
8
9
10
11
12

D3
RELAY SPDT

2.2K, 5%

K2
SO2222

DIODE, SCHOTTKY

2
5

4
1
3

RELAY SPDT

Q2
R6

K3
+12V

2
5

4
1
3

2.2K, 5%
SO2222

DIODE, SCHOTTKY

+12V

EXTERNAL
REAR PANEL
ALARM OUTPUTS

TERMBLOCK-12
D5

RELAY SPDT
K4

DIODE, SCHOTTKY

2.2K, 5%
SO2222

2
5

4
1
3

R8
Title
Schematic for E Series Motherboard PCA 05702

2.2K, 5%
SO2222

+12VRET

Size
Orcad B
Date:
File:

D-22

Number

Revision
A

05703

17-Jun-2008
Sheet 8of
8
N:\Pcbmgr\05701dn.E-motherboard.gen4\Source\05701a.DDB
Drawn By:
6

04288D DCN 5752

+5V
R5
150K
C2

U1A

1
3
1.0uF

R6
150K

+5V

U1B

C1
1.0uF

R9
200

MC74HC132A

J2
1
2
3
4
5
6

+5V
R7

151K

2K C3

U1C

9
8
1.0uF
R10
200

U1D

12
11

10
13
MC74HC132A

MC74HC132A

OPB804

R8
150K

TP2

R3
1K

MC74HC132A
7

OPB804

TP1

R2
2K

R1
357

04288D DCN5752

APPROVALS
DRAWN

CAC
CHECKED

APPROVED

DATE

4/30/01

Schematics for PWB 04087
and PCA 04088
OPTO-INTERRUPTER
SIZE

DRAWING NO.

REVISION

04089

LAST MOD.

SHEET

2-Apr-2002

D-23

J1
AC_Line

1
2
3
4
D

5
JP1 Configurations

JP4 Configuration

Spare Powered: 7-14

Standard Pumps
60 Hz: 3-8
50 Hz: 2-7, 5-10

100V: 1-8, 5-12, 3-10, 4-11
115V: 6-13, 2-9, 3-10
230V: 6-2, 11-4

AC_Neutral

World Pumps
60Hz/100-115V: 3-8, 4-9, 2-7
50Hz/100-115V: 3-8, 4-9, 2-7, 5-10
60Hz/220-240V: 3-8, 1-6
50Hz/220-240V: 3-8, 1-6, 5-10
J3

CON4

R3
2.2K

RN1
330

R4
2.2K

WHEEL

1
3
5
7

2
4
6
8

SPARE
2

SLD-RLY

1
2
3

SLD-RLY

1
2
3
4

FUSE2
I2C_Vcc
16
U1
PCF8574
1
AO
2
A1
3
A2

D7
GRN

D8
GRN

4
5
6
7
9
10
11
12

P0
P1
P2
P3
P4
P5
P6
P7

14
13
12
11
10
9
8

U2D
9

11
JP8

U2E

1
2
3

C5
1.0

R5
10K

CON10

CON10THROUGH

D-24

CON10THROUGH

TP5
-15V

TP6
TP7
+12RT +12V

+5V

R6
10K

JP7

U2F
13

1
2
3
HEADER 3

R8
8.25K

CON2

+ C9
10/16

B
Date:
File:

1
2

+12V

Title

CON10THROUGH

SOURCE

J16

R9
1.0K
+ C10
10/16

Size

MOLEX8

C7
2200/25

NOTE: 1. Use PWB 04134

+5V

SPARE
J15
1
2
3
4
5
6
7
8
9
10

TP3
TP4
AGND +15V

SYNC DEMOD
J14
1
2
3
4
5
6
7
8
9
10

MTHR BRD
J13
1
2
3
4
5
6
7
8
9
10

KEYBRD
J12
1
2
3
4
5
6
7
8
9
10

U5
MIC29502

C8
10/16

+ C6
10/16

U2A

R1
1M

OUT4
K
OUT 3
OUT 2
K
OUT 1

VALVES
J7
SAMPLE
8
SPAN/ZERO
4
SHUTOFF
7
SPARE
3
6
2
5
1

1
2
3
6
7
8

UDN2540B(16)
11

WTCDG OVR

D9
RLS4148

MAX693

IN 4
IN 3
ENABLE
IN 2
IN 1

GND
GND
GND
GND

16
15
14
13
12
11
10
9

16
15
14
10
9

U2C

I2C_Vcc

IRF7205

RESET
RESET'
WDO'
CD IN'
CD OUT'
WDI
PFO'
PFI

+12V
U4

VCC

R7
10K

WATCHDOG TIMER

VBATT
VOUT
VCC
GND
BATT_ON
LOW LINE'
OSC IN
OSC SEL

DGND
+5V
AGND
+15V
AGND
-15V
+12RET
+12V
EGND
CHS_GND

1
2
3
4
5
6
7
8
9
10

1
2
3
4

+5V

TP1
TP2
DGND +5V
DC PWR IN
J11

MINI-FIT 10

U2B

1
2
3
4
5
6
7
8

C4
0.001

HEADER 1X2

PUMP
J2

13
12
5
4

+5V

JP5
2

10
9
8
7
6

SN74HC04

C2
1.3/250
C

5
4
3
2
1
SPW-3108

R2
20K

+5V

GFC MOTOR

JP4

MLX 7X2 HDR

7
6
5
4
3
2
1

INT

C3
0.3/250

CASE

SCL
SDA

Vss

CON5

D6
GRN

ENBL
IN
GND
OUT
ADJ

14
15

1
2
3
4
5

D5
GRN

1
2
3
4
5

D4
YEL

JP1
Vdd

D3
YEL

GND
VCC

C1
0.1

D2
YEL

SPARE

HEADER 4X2

D1
RED

WHEEL HTR
BENCH HTR

I2C_Vcc

JP6

BENCH

1
2
3
4
5

+5V

Schematic, PCA 04135 Revision A, M300E Relay PCA
Number

Revision

04136

17-Jul-2002
Sheet of
N:\PCBMGR\RELEASED\04135dn\Source\04135.ddb
Drawn By:
6

04288D DCN 5752

VCC

1
2
3
4
5
6
7

10uF

DS3

KBD_A0
KBD_A1
KBD_A2

21
2
3
1

SCL
SDA

22
23

A0
A1
A2
INT

P00
P01
P02
P03
P04
SCL
P05
SDA
P06
P07
P10
PCF8575 P11
P12
P13
P14
P15
P16
P17

M8
S3

VCC

R2
1.0K

U3A

4
3
2
1

MF4

RN1
4.7K

PRE
CLK
D
CLR

5
6

Q
Q

+
DS5

MAINT_SW
LANG_SELCT

DS6

GRN LED
YEL LED
RED LED
LED 4
LED 5
LED 6
HORN
SPR_I/O_0

RI-1000 ONLY

Layout Instructions:
A1
SONALERT

Vss

MF3

DS4

4
5
6
7
8
9
10
11
13
14
15
16
17
18
19
20

M10

220

2
3
4
5
6

MM74HC74A
300pF

VCC

RI-1000 ONLY

U4
VCC

OPT. MAINT SWITCH
S12

RN5
4.7K

SDA

TP3

BUSY

SCL

TP8

DISP_PWR

DISP_PWR_EN must
be high for display to
be powered.

DISP_RET

4.7K

DISP_BUSY

VCC

6
7
8
9
10

DISP_CN_A0
DISP_CN_A1
DISP_CN_A2
SCL
SDA

1
2
3
14
15

AO
A1
A2
SCL
SDA

SCL

4.7K

SCL
KYBRD_INT

+5_DISP

DISP_RET

VCC

JP3

1
2
3
4
SDA 5

6
7
8
9
10

DISP_RET

(U1)

DISP_RET

SCL
KYBRD_INT

(U2)

(U4)

(U45

PCF8574

C11

C12

C10

220pF

+ C14

100uF

.1uF

DISP_RET
B

C17

220pF

+ C13

C15

C16

.1uF

P0
P1
P2
P3
P4
P5
P6
P7
INT

4
5
6
7
9
10
11
12

1
2
3

RN2
4.7K

1500uF

VCC
1
2
3
4
SDA 5

DISP_PWR

VCC

+5_DISP
+5_DISP

DISPLAY CONTROL
U5

NOTES:
1. This schematic is based on
the PWB PN, 03974 and
applies to PCA PN, 03975

TP9

DISP_WR
DISP_BUSY

VCC

DISPL CONTROL (DISP_CN_A0 -A1)
011

KYBRD_INT

1
3
5
7
9
11
13
15

+5_DISP

KEYBOARD (KBD_A0 - A2)
111

TP5

SDA

2
4
6
8
10
12
14
16

KYBRD INT

TP4

+5_DISP

DISP_RET
TP7

INT

4
5
6
7
9
10
11
12

JP1
ADRS SLCTS

2
4
6
8
10
12
14
16
18
+5_DISP

VCC
DISP_PWR

JP2 I2C TERMINATION
SCL
1
2
SDA

DEFAULT ADDRESS SELECTS FOR I2C TO PARALLEL
DECODERS:

S13

TP2

TP6

PCF8574

SPR_I/O_2
OPT. LANG. SWITCH

SCL
SDA

DISPLAY DATA
DISP_DA_A0
DISP_DA_A1
DISP_DA_A2

D
G

SI3443DV

1
2

MCP120T
1

Vdd

RST

MMBT3904
R20

4.85V DTCT
SPR_I/O_1
SPR_I/O_2
A

10uF

.1uF

Title

JP4

Schematic for PCA #04258 and PCB #04257, Keyboard/Display Interface for E series
Size

Number

Revision

04259

B
Date:
File:

04288D DCN5752

+5_DISP

6
5
4

JP5
DISP_PWR_OVR

DISP_WR
DISP_BUSY
DISP_PWR_EN
MAINT_LED

DISP_RET

J3 TO/FRM DISPLAY
P0
P1
P2
P3
P4
P5
P6
P7

SPR_I/O_1

14
15

Vss

SPR_I/O_0

VCC

TP1

SCL
SDA

MM74HC74A
KBD_A0
KBD_A1
KBD_A2
DISP_CN_A0
DISP_CN_A1
DISP_CN_A2

3M-2514-6002UB
GND

KYBRD_INT

AO
A1
A2

MAINT_LED_V+
MAINT_LED
LANG_SELCT

9
8

Q
Q

2
3
4
5
6
7
8
9
10

MAINT_SW

PRE
CLK
D
CLR

1
2
3

Vss

1
2
3
4
5
6
7
8
9
10
11
12
13
14

T8201

1
3
5
7
9
11
13
15
17

MAINT SW
MAINT SW RET
MAINT LED V+
MAINT LED
LANG SW
LANG SW RET
SPR I/O_0
SPR I/O RET
SPR I/O_1
SPR I/O RET
SPR I/O_2
SPR I/O RET

10
11
12
13

VCC

DISP_DA_A0
DISP_DA_A1
DISP_DA_A2

U3B

1. Minimum trace width 8 mil would like to have
10 mil traces if possible.
2. Please run traces on both and backside but
where possible fill one side with GND.
3. Minimum width for +5_DISP, DISP_PWR,
DISP_RET is 40 mil, except to test points.
4. Minimum width for VCC, GND, Vdd, Vss is
30 mil, except to test points

2
3
4
5
6

74C923

MAINT_LED_V+

RED

KEYBOARD, LED & HORN

12
11
9
8

10
9
8
7
6

Vss

X1
X2
X3
X4

YEL

VCC

AVL

Vss

1
2
3
4
5

+ C6

.1uF

RN3

GRN

C1
S6

DS2

Vdd

DS1

19
18
17
16
15

D_A
D_B
D_C
D_D
D_E

Vdd

Y1
Y2
Y3
Y4
Y5
OSC
KBM

Vdd

Vcc

VCC

a
21-Mar-2002
Sheet of
N:\YHWork\M300B\keyboard\04257a\04259A.ddb
Drawn By:
6

D-25

B
JP1

R1
Not Used

R2
22

1
2
3
4
5
6
7
8

Title

Size
A
Date:
File:
1

D-26

SCH, E-Series Analog Output Isolator, PCA 04467
Number

Revision

04468

6/28/2004
N:\PCBMGR\..\04468B.sch

Sheet of
Drawn By:
4

04288D DCN 5752

Source Exif Data:

File Type                       : PDF
File Type Extension             : pdf
MIME Type                       : application/pdf
PDF Version                     : 1.6
Linearized                      : Yes
Author                          : RJS / JML
Category                        : Manuals
Comments                        : 
Company                         : Teledyne-API
Create Date                     : 2011:06:22 13:20:17-07:00
Modify Date                     : 2011:06:22 13:43:50-07:00
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Has XFA                         : No
XMP Toolkit                     : Adobe XMP Core 4.2.1-c043 52.372728, 2009/01/18-15:08:04
Creator Tool                    : Acrobat PDFMaker 9.1 for Word
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Format                          : application/pdf
Creator                         : RJS / JML
Title                           : M200E Operator's Manual
Description                     : 
Document ID                     : uuid:a0986e55-8bf3-4be8-b6cd-16b0545be0c4
Instance ID                     : uuid:cad243e1-763a-45df-a7e3-fb9b6a9b4b83
Page Layout                     : OneColumn
Page Count                      : 398

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Teledyne M300E Users Manual M200E Operator's

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