100 Series Instruction Manual Rev S (7.24.18)

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Sierra Instruments Instruction Manual SmartTrak® 100 Series

SmartTrak® Series 100

Mass Flow Meters and Controllers

Models: C100, M100, 100 HP, C101, M101, C140

Instruction Manual

IM-100, Revision: S

August 2018

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Global Support

CORPORATE HEADQUARTERS

5 Harris Court, Building L Monterey, CA 93940

Phone (831) 373-0200 (800) 866-0200 Fax (831) 373-4402

www.sierrainstruments.com

EUROPE HEADQUARTERS

Bijlmansweid 2 1934RE Egmond aan den Hoef

The Netherlands

Phone +31 72 5071400 Fax +31 72 5071401

ASIA HEADQUARTERS

Second Floor Building 5, Senpu Industrial park

25 Hangdu Road Hangtou Town

Pu Dong New District

Shanghai, P.R. China Post Code 201316

Phone: + 8621 5879 8521 Fax: +8621 5879 8586

IMPORTANT CUSTOMER NOTICE: OXYGEN SERVICE

Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting from the use of Sierra

Instruments standard mass flow meters or controllers for oxygen gas. You are responsible for determining if this mass

flow meter or controller is appropriate for your oxygen application. You are responsible for cleaning the mass flow

meter or controller to the degree required for your oxygen flow application.

No part of this publication may be copied or distributed, transmitted, transcribed, stored in a retrieval system, or

translated into any human or computer language, in any form or by any means, electronic, mechanical, manual, or

otherwise, or disclosed to third parties without the express written permission of Sierra Instruments. The information

contained in this manual is subject to change without notice.

TRADEMARKS

SmartTrak® 100 Series and Dial-A-Gas® is a Registered Trademark of Sierra Instruments, Inc. Other product and

company names listed in this manual are trademarks or trade names of their respective manufacturers.

SMART-TRAK® 2 NAME CHANGE

Please note that the family name of the Smart-Trak Series has been renamed from Smart-Trak® 2 to SmartTrak® 100

Series. It is the same great product, but with a new look (label).

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Table of Contents



Chapter 1: Introduction ..................................................................................................... 5

Welcome to the future of gas flow measurement! ................................................................. 5

Using This Manual ................................................................................................................. 5

Safety Information .................................................................................................................. 6

Receipt of your instrument ..................................................................................................... 7

The SmartTrak Flow Sensing Principle ................................................................................. 9

Chapter 2: Installation ...................................................................................................... 11

Before You Begin Installation .............................................................................................. 11

Pre-Installation Check List ................................................................................................... 11

Installing the Instrument—Plumbing ................................................................................... 12

Compression Fittings ............................................................................................................ 13

VCO Fittings ........................................................................................................................ 13

VCR Fittings ......................................................................................................................... 13

1/4 Inch Female NPT ........................................................................................................... 14

Installing your Instrument—Mechanical Mounting ............................................................. 14

Installing your Instrument—Electrical Connections ............................................................ 15

Figure 2-3: HD DB-15 Connector Pin Configuration (on the instrument) .......................... 17

Figure 2-4: Wiring Definitions for Optional Communication Cable ................................... 17

Figure 2-5: Power Supply Requirements ............................................................................. 18

Chapter 3: Analog Operation ......................................................................................... 21

Analog Operation, Mass Flow Controller ............................................................................ 22

SmartTrak Features .............................................................................................................. 23

Setpoint Adjustment ............................................................................................................. 23

Changing the Output or Setpoint Signals ............................................................................. 23

Over-Range Condition ......................................................................................................... 23

Manual Valve Override—Valve Close ................................................................................ 23

Manual Valve Override—Valve Purge Function ................................................................. 24

Important Notes About Purging ........................................................................................... 24

Purging Non-Reactive Gases: .............................................................................................. 24

Purging Reactive Gases: ....................................................................................................... 24

Chapter 4: Digital Operation with Pilot Module ........................................................... 26

Introduction to Pilot Module Features and Capabilities ....................................................... 26

Pilot Module Operation, Mass Flow Meters ........................................................................ 29

Pilot Module Operation, Mass Flow Controllers: ................................................................ 30

Making Changes Using the Lower Level Screens: ...................................................................... 37

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Lost Passwords and General Customer Service: ........................................................................ 47

Chapter 5: Digital Operation RS-232 & SmartTrak Software ................................... 47

Power Up Your Instrument ................................................................................................. 47

Power Up Your Computer ................................................................................................... 50

Loading the SmartTrak Software ........................................................................................ 50

Connecting SmartTrak to Your Computer .......................................................................... 51

If your computer has a serial port… ..................................................................................... 50

If your computer has no serial port, but has a USB port… .................................................. 51

If you plan to control more than one SmartTrak instrument from your computer… ........... 52

Running The SmartTrak Software ....................................................................................... 53

Chapter 6: Technical Support & Service ...................................................................... 68

Factory Calibration—All Models ......................................................................................... 69

Instructions for Returning Your Instrument for Service ...................................................... 69

Appendix A: C100 & M100 SmartTrak® Product Specs, Dimensions and Mounting

Appendix B: C101 & M101 Ultra-Low Flow Product Specs, Dimensions and Mounting

Appendix C: C140M Ultra-Low ΔP Product Specs, Dimensions and Mounting

Appendix D: 100HP Ultra-High Pressure Product Specs, Dimensions and Mounting

Appendix E: High Pressure Safety Guide for the 100HP

Appendix F: Gas Tables & K-Factors (ALL 100 Series)

Appendix G: Flow Chart for Pilot Module User Interface (ALL 100 Series)

Appendix H: PIN Configuration (ALL 100 Series)

Appendix I: SmartTrak Basic Commands (ALL 100 Series)

Appendix J: Warranty Policy

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 1: INTRODUCTION

Welcometothefutureofgasflowmeasurement!

This manual is your guide to SmartTrak. Visit the Sierra Instruments website

www.sierrainstruments.com any time for more information about this product.

The SmartTrak instruments offer a variety of features for ease of operation. Among these

features:

 Dial-A-Gas®: allows a user to change from among 10 gases while maintaining

accuracy.

 The Optional Pilot Module: control electronics that offers both display and control

options at the user’s fingertips.

 Digital Electronics: maximum performance with minimum noise plus exceptional

tuning capability.

 Choice of Analog Communications Options and RS-232 with every SmartTrak

instrument.

 Flexible Design with many functions that can be re-configured on-site by the user.

 Compact Footprint that allows SmartTrak to fit almost anywhere.

 Wide range of sizes for gas flow from 0.1 sccm to 1400 slpm.

 And many more

Using This Manual

This manual is organized into six chapters:

 Chapter 1: Introduction and Theory of Operation.

 Chapter 2: Installation, Plumbing & Wiring instructions.

 Chapter 3: Analog Operation.

 Chapter 4: Digital Operation with the Optional Pilot Module.

 Chapter 5: Digital Operation with RS-232 & SmartTrak Software.

 Chapter 6: Technical Support and Service.

 Appendix A,B,C,D,E,F,G,H,I,J

Throughout this manual, we use the word instrument as a generic term to represent all

models of Sierra Instruments’ SmartTrak Series 100 mass flow meters and

controllers.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

SAFETY INFORMATION

Caution and warning statements are used throughout this book to draw your attention to

important information.

Warning!

Caution!

This statement appears with information that

is important to protect people and equipment

from damage. Pay very close attention to all

warnings that apply to your application.

This statement appears with information that is

important for protecting your equipment and

performance. Read and follow all cautions that

apply to your application.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

RECEIPT OF YOUR INSTRUMENT

When receiving the instrument, carefully check the outside packing carton for damage that

may have incurred during shipment. If the carton is damaged, notify the local carrier and

submit a report to the factory or distributor. Remove the packing slip and check that all

ordered components are present and match your specifications (as ordered). Make sure

any spare parts or accessories are not discarded with the packing material. Do not return

any equipment to the factory without first contacting one of Sierra’s Technical Support

Centers:

USA (Headquarters) Customer Service:

TOLL FREE: 800-866-0200

PHONE: 831-373-0200

FAX: 831-373-4402

EMAIL: service@sierrainstruments.com

European Customer Service:

PHONE: +31 72 5071400

FAX: +31 72 5071401

EMAIL: service@sierra-instruments.nl

Asia Customer Service:

PHONE: + 8621 5879 8521

FAX: +8621 5879 8586

EMAIL: www.sierra-asia.com

Sierra Instruments Instruction Manual SmartTrak® 100 Series

DEFINITIONS USED IN THIS MANUAL

The following terms are used frequently in this manual. They are presented here with

their definitions for your information.

Setpoint—The command or control signal supplied to a flow controller is called its

setpoint. The controller will maintain the flow at this value.

Full scale—The highest flow that an instrument will meter within its specified accuracy.

It is often possible for an instrument to measure a flow beyond its full scale value, but the

accuracy of this measurement may be outside of published specifications.

Purge—The SmartTrak Mass Flow Controller is supplied with the ability to open the

valve far beyond the full scale position to allow them to be cleaned. This is usually

accomplished by blowing clean, dry nitrogen through the instrument. When the valve is

opened to this cleaning position, it is said to be in the Purge mode.

LFE—Laminar Flow Element (LFE) or bypass generates pressure drop forcing a small

fraction of the total flow to pass through the sensor capillary tube.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

THE CAPILLARY THERMAL OPERATING PRINCIPLE

Watch Video: www.sierrainstruments.com/CapPrinciple.

The operating principle of the SmartTrak instruments is based on heat transfer and the first

law of thermodynamics. During operation process gas enters the instrument’s flow body

and divides into two flow paths, one through the sensor tube, and the other through the

laminar flow bypass. The laminar flow bypass (often called LFE which stands for

“laminar flow element”) generates a pressure drop, P1–P2, forcing a small fraction of the

total flow to pass through the sensor tube (m1).

Figure 1-1. Flow Paths through the Instrument

Two resistance temperature detector (RTD) coils around the sensor tube direct a constant

amount of heat (H) into the gas stream. During operation, the gas mass flow carries heat

from the upstream coil to the downstream coil. The resulting temperature difference (∆T)

is measured by the SmartTrak microprocessor. From this, SmartTrak calculates the output

signal. Since the molecules of the gas carry away the heat, the output signal is linearly

proportional to gas mass flow.

Figure 1-2. Flow Measuring Principle

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Figure 1-3. Sensor Temperature Distribution

Figures 1-2 and 1-3 show the mass flow through the sensor tube as inversely proportional to

the temperature difference of the coils. The coils are legs of a bridge circuit with an output

voltage in direct proportion to the difference in the coils’ resistance; the result is the

temperature difference (∆T). Two other parameters, heat input (H) and coefficient of

specific heat (Cp) are both constant. Through careful design and attention to these

parameters, this output signal is made linear over the transducer’s normal operating range

(Figure 1-4). As a result, the measured flow through the sensor tube is directly proportional

to the gas flow in the main body.

Figure 1-4. Linear Range of the Transducer’s Output Signal

In the SmartTrak mass flow controllers, the gas which flows through the monitoring

section is precisely regulated by the built-in electromagnetic valve. The normally closed

valve is similar to an on/off solenoid valve, except that the current to the valve coil, and

hence the magnetic field, is modulated so that the ferromagnetic valve armature, or valve

plug, assumes the exact height above the valve’s orifice required to maintain the valve’s

command flow (set point). The result is excellent resolution.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 2 INSTALLATION

Before You Begin Installation

Before installing the instrument, ensure that the installation site conforms to the specific

operating parameters recorded on the instrument’s Data Label. The Data Label is mounted

on the back of the instrument electronics enclosure (see sample Data Labels in Figure: 2-

1). This is critical because each instrument is configured for a specific application range.

Please review the gas or gases, the mounting orientation, the maximum flow range(s), the

inlet and outlet pressure(s), and the operating temperature(s). The line pressure should not

exceed 500 psig (34 barg) except for SmartTrak100 High Pressure version instruments

(refer to Appendix D). The temperature should not exceed 122°F (50°C). The minimum

operating temperature is 32°F (0°C) and ambient temperature is 0-50°C. If your

application exceeds any of these parameters, contact your Sierra Sales Agent before

installation. You may also contact one of Sierra’s Technical Support Centers. FACTORY

USA: TOLL FREE: 800-866-0200 or PHONE: 831-373-0200 or FAX: 831-373-4402 or

EMAIL: service@sierrainstruments.com

Figure 2-1: Examples of SmartTrak Data Labels

 

Pre-Installation Check List

1. Double-check to be sure that the O-ring material used in your instrument is

compatible with the gas to be measured. The O-ring material used in your

Warning!

Injury can result if line

pressure exceeds the

maximum rating of

500 psig (34 barg)

for standard

SmartTrak 100.

Warning!

If installing a

SmartTrak 100 HP,

read Appendix E:

SmartTrak 100 High

Pressure Version

Safe Use before

installing instrument.

Warning!

Injury can result if line

pressure exceeds the

maximum rating of

5000 psig (345 barg)

when using the

SmartTrak 100 High

Pressure.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

SmartTrak can be found in the Data Label. See Appendix A for a table of elastomer

compatibility with a wide variety of gases.

2. Sierra strongly recommends you install an in-line filter upstream of the

instrument. Recommended filter size: 10 micron. A 10 micron filter is available

from Sierra as an accessory. See Appendix B or contact your local Sierra

distributor.

3. Do not locate the instrument in areas subject to sudden temperature changes,

excessive moisture or near equipment radiating significant amounts of heat.

Be sure to allow adequate space for cable connectors and wiring.

4. For controllers, use a properly sized pressure regulator. Make sure the pressure

regulator is not too small or too big. There can be no restrictions (such as valves,

tubing or pipe internal diameters, reducers, etc.) upstream or downstream of the

controller with a dimension that is less than the valve orifice diameter. To

determine orifice diameter, consult the calibration certificate included with your

instrument. If restricted, controller will not reach full scale.

5. Output Signals: The SmartTrak has two analog outputs that are linearly

proportional to the gas mass flow rate, one voltage and one current. Choose from 0-

20 mA or 0/0/4-20 mA for current plus one voltage signal: 0-5 VDC or 0-10 VDC

or 1-5 VDC. The output signals specified at time of order will be indicated on the

data label. You may change among the current and the voltage output signal at

your discretion after receipt of the instrument using the Pilot Module or the

SmartTrak Software (see Chapters 4 & 5). Changing the output signals has no

influence on the instrument’s accuracy.

NOTE: For the SmarTrak 100 plus Compod, the 0-5 VDC I/O cannot be used. Only

0/4-20 mA I/O is available.

6. The CAT-5 connector on the side of the SmartTrak is NOT an Ethernet connector.

It is for use with the optional Remote Pilot Module. Do not plug an Ethernet cable

here as damage may result. Keep this connector covered if possible whenever it is

not in use.

7. The instrument has specific power supply requirements. See the table later in

this chapter for a complete listing of power requirements.

Installing the Instrument—Plumbing

SmartTrak instruments are supplied with compression, VCO®, VCR®, or female NPT

process connections. To ensure a successful installation, inlet and outlet tubing should be

clean prior to plumbing the instrument into the system. The shipping caps covering the

inlet/outlet fittings should not be removed until immediately before installation.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Follow the installation instructions that are applicable to your instrument’s process

connection. Ensure that the tubing is free from burrs or sharp rims that may result from

cutting.

CAUTION: Before use, all plumbing should be checked carefully for leaks, especially

at the connecting fittings. All instruments are leak-tested prior to shipping. It is not a

requirement to leak test your instrument. Do not use liquid leak detectors such as

Snoop® to search for leaks inside or outside the SmartTrak. Instead, monitor pressure

decay.

Compression Fittings

1. Position the instrument with the flow

direction arrow pointing in the direction

of flow.

2. Verify the position of the front and back ferrule. Insert the tubing into the fitting.

Be sure that the tubing rests firmly on the shoulder of the fitting and that the nut is

finger-tight. Scribe the nut at the six o’clock position.

3. While holding the fitting body steady with a backup wrench, tighten the nut 1-1/4

turns, watching the scribe mark make one complete revolution and continue to the

nine o’clock position. For 1/16-inch, 1/8-inch and 3/16-inch (2, 3 and 4 mm) sizes,

tighten only 3/4 turns from finger-tight. Do not over-tighten!

4. If you use flexible tubing (Example: Polyflow) use an “Insert” (see

www.swagelok.com)

5. Check the system’s entire flow path thoroughly for leaks. Do not use liquid leak

detectors. Instead, monitor pressure decay. Exposing the instrument to leak

detector fluid may cause damage.

VCO Fittings

1. Position the instrument with the flow direction arrow pointing in the direction of

flow.

2. Tighten the nut finger-tight, and then 1/8 turn tighter with a wrench. Do not over-

tighten!

3. Check the system’s entire flow path thoroughly for leaks. Do not use liquid leak

detectors. Instead, monitor pressure decay. Exposing the instrument to leak

detector fluid may cause damage.

VCR Fittings

Sierra Instruments Instruction Manual SmartTrak® 100 Series

1. Position the instrument with the flow direction arrow pointing the direction of

flow.

2. Install new gaskets that are compatible with the gas to be used.

3. Tighten the nut finger-tight, and then 1/8 turn tighter with a wrench. Do not over-

tighten!

4. Check the system’s entire flow path thoroughly for leaks. Do not use liquid leak

detectors. Instead, monitor pressure decay. Exposing the instrument to leak

detector fluid may cause damage.

1/4InchFemaleNPT

1. Position the instrument with the flow direction arrow pointing the direction of

flow.

2. Apply high quality Teflon tape to the male NPT fitting. Alternatively, use a high

quality paste pipe thread sealant suitable for the application and gas, and apply this

compound to the inlet and outlet fittings. Avoid getting the tape or the thread

sealant onto the first two threads to keep it out of your process gas.

3. Tighten each fitting by hand. Then, tighten no more than one (1) turn. Do not

over-tighten.

4. Check the system’s entire flow path thoroughly for leaks. Do not use liquid leak

detectors. Instead, monitor pressure decay. Exposing the instrument to leak

detector fluid may cause damage.

Installing your Instrument—Mechanical Mounting

Mounting your Instrument

The base plate or bottom of the instrument has 4 mounting holes. Two are SAE thread and

two are metric thread. For location and dimensions, please see Appendix A.

Your SmartTrak instrument is made from premium 316 stainless steel. As a result, it may

require substantial mounting brackets to properly support its weight. Exercise caution when

installing to avoid damage or injury.

Mounting the Optional Remote Pilot Module

Sierra Instruments Instruction Manual SmartTrak® 100 Series

If you have the optional Remote Pilot Module control unit, you have several mounting

options.

1. Wall or Panel mounting—your Remote Pilot Module may be mounted to a flat

surface using the supplied plate and 2 special “shoulder” screws. Simply screw the

shoulder screws into the plate. Then, attach the plate to the wall by driving 2

screws (not included) through the 2 large central holes. MAKE SURE THE UP

ARROW IMPRINTED ON THE MOUNTING BRACKET POINTS

UPWARD. Your Remote Pilot Module will slip onto the shoulder screws. Push

against the plate and then down. To remove, push up and pull. Attach the CAT-5

cable to the socket on the bottom of the Remote Pilot Module.

2. Rack mounting—to mount your Remote Pilot Module to a standard 19”

laboratory rack, first purchase a “blank” panel from your industrial supplier.

Decide where the Remote Pilot Module will be attached, then follow the procedure

listed above for wall mounting. When you are ready, insert the CAT-5 cable into

the socket in the Remote Pilot Module.

3. Desktop mounting—the Remote Pilot Module will sit on a desk in a fashion that

makes it convenient to view and operate. Insert the CAT-5 cable into the socket in

the back of the Module. Use the cable as a “kickstand.” Gently bend the cable to

recline the Remote Pilot Module to an angle suitable for easy viewing.

Alternately, you can lay the Remote Pilot Module on its back and insert the CAT-5

cable into the socket in the bottom.

Installing your Instrument—Electrical Connections

All electrical connections for your SmartTrak instrument are made on the left (inlet) side

panel. See Figure 2-2: SmartTrak Connections below for the location of all connections.

Note that the CAT-5 connector is not an ethernet connector.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Figure 2-2: SmartTrak connections

SmartTrak is provided with a high density 15-pin D Connector called an “HD DB-15”

located on the side of the enclosure and either one of our optional pre-assembled

communications cables or an empty mating connector. Power must be supplied to the HD

DB-15 connector. Other features may be accessed there as well. The pin numbers and

assignments for the HD DB-15 connector are shown in Figure 2-3: HD DB-15 Connector

Pin Configuration (on the instrument). The corresponding colors of the optional

communication cable wires and the functions of each are listed in Figure 2-4: Wiring

Definitions for Optional Communication Cable. The connections for input power, analog

CAT 5

HD DB 15

Sierra Instruments Instruction Manual SmartTrak® 100 Series

output signal and analog input signal (controllers only) are all made at the HD DB-15

connector. There is a second copy of these 2 figures in Appendix D for your convenience

Figure2‐3:HDDB‐15ConnectorPinConfiguration(ontheinstrument)



Figure2‐4:WiringDefinitionsforOptionalCommunicationCable

Pin # Wire Color in Cable Function

1. Brown Analo

Ground

Output

2. Re

0-5 VDC Output (or 0-10, 1-5 VDC)

3. Oran

e Analo

Ground

RS232

4. Pin

Valve Override Pur

5. Yellow Power Return (-)

6. Green Power Input (+)

7. Green/White RS-232 Transmit (out)

8. Blue Setpoint

9. Purple Not Use

10. Gra

Analo

Ground

Setpoint

11. White Reference Voltage

(5 VDC External Setpoint & Valve Pur

12. Blac

Valve Override Close

13. Brown/white RS-232 Receive (in)

14. Red/white 0/4-20 mA Output

15. Red/Blac

Not Use

Shield Wire

(no insulation)

Chassis (Earth) Ground

Sierra Instruments Instruction Manual SmartTrak® 100 Series

NOTE: Pins 1, 3, and 10 are connected together

inside the instrument. Do not tie these grounds

together outside the instrument. Must have one

connection per analog ground. Recommended

use listed.

Instrument Power:

The SmartTrak requires a 15-24 VDC power supply. If you are using the power supply

supplied by Sierra, connect it to the 15-pin HD DB-15 connector on the side of the

instrument. If you are supplying your own power source, it must be a regulated 15-24 VDC

with ripple not to exceed 100 mV peak-to-peak. It must be capable of producing the current

specified for the appropriate voltage shown in Figure 2-5: Power Supply Requirements.

Apply power as follows: positive (+) to the green (pin 6) and negative (-) to the yellow (pin

5) wires. The instrument is polarity sensitive. If you reverse this wiring, the instrument will

not be damaged, but it will not function.

Instrument Grounding:

The SmartTrak has very high levels of RFI and EMI shielding built into the metal electronics

cover (meets or exceeds the CE Standard EN 61326-1; 2006). To maintain the integrity of

this CE rating, it is critical that a path be provided for any residual internal noise to exit the

instrument or it may register on the outputs. Grounding provides this path.

To properly ground your instrument, secure the chassis to solid earth ground using the

mounting holes on the bottom of the flow body. If the instrument will be used without

permanent mounting (on a laboratory bench, for instance) then, using the provided cable,

connect the shield wire (no insulation) to earth ground in your facility. If you purchased a

Sierra power supply, a ground wire is provided for your convenience.

Figure 2-5: Power Supply Requirements

Instrument Type Recommended Input

Volta

Minimum Current

Required (mA)

M100L Meter 15-24 VDC (+ 10%) 230

M100M Meter 15-24 VDC (+ 10%) 230

M100H Meter 15-24 VDC (+ 10%) 230

C100L Controller 24 + 10% VDC 500

C100M Controller 24 + 10% VDC 800

C100H Controller 24 + 10% VDC 1260

NOTE: The Compod™ adds an additional 100mA to the ST2 current ratings.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CAUTION: This instrument is not a loop-powered

device! Do NOT apply power to the 0/4-20 mA output or

input connections.

Analog Output Signals:

 Output Signal—Voltage: Measure the voltage output signal across the red (pin 2) wire and

any of the analog grounds: brown (pin 1), orange (pin 3) or gray (pin 10). The minimum

load is 1000 Ohms. We recommend pin 1. DO NOT USE THE SAME ANALOG GROUND

FOR CURRENT OUTPUT, SETPOINT OR RS232.

 Output Signal—Current: Measure the current output signal, 0/4-20 mA or 0-20 mA,

across the red/white stripe (pin 14) wire and any of the analog grounds: pin 1, 3, or 10. The

maximum load is 500 Ohms. We recommend pin 1. DO NOT USE THE SAME ANALOG

GROUND FOR VOLTAGE OUTPUT, SETPOINT OR RS232.

For Mass Flow Controllers, the following analog features are also available

at the HD DB-15 connector:

 Setpoint: To transmit an analog setpoint, supply the voltage or current signal (check the data

label and/or setting) across the blue (pin 8) wire and pin 10.

 Valve Close: To force the valve closed, connect the black (pin 12) wire to pin 10

 Purge: To force the valve to its maximum open position which we call “Purge,” connect the

pink (pin 4) wire to the white (pin 11) wire. Note that this will allow much greater flow than

the rated full-scale value.

ForDigitalCommunicationUsingYourPersonalComputer:

You can communicate with your instrument using the SmartTrak Software package and your PC

running the Windows operating system. Simply connect the light green (pin 7) wire, the

brown/white stripe (pin 13) wire and one of the analog grounds (pin 1,3, or 10) to a standard DB-

9 connector according to Figure 2-6: Digital Communication.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Figure 2-6: Digital Communication

RS-232 Transmit (pin 7) to DB-9 pin #2

RS-232 Receive (pin 13) to DB-9 pin #3

Analog ground (pin 3) to DB-9 pin #5

With the connections in Figure 2-6 in place, plug the DB-9 connector into an appropriate serial

port on your PC.

To minimize the potential for RF interference, it is recommended to shield these wires. Use a

metal DB-9 connector and connect one end of the shield to the DB-9 shell and the other end to

the outer shell of the SmartTrak HD DB-15 connector.

NOTE: Transit and Receive may need to be reversed,

depending on which type of device or cable is connected. (No

damage will result—attempt communication after reversal.

CAUTION: The CAT-5 connector on the side of the SmartTrak

NOT an Ethernet connector. It is for use with the optional

Remote Pilot Module or CRN cable. Do not plug an Ethernet

cable here as damage may result.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 3: ANALOG OPERATION

Your SmartTrak instrument may be operated in three different ways:

THREE CONTROL OPTIONS

A. Analog Input/Output Operation (This Chapter): Using analog input/output signals at the

15-pin mini-D connector.

B. Digital Operation with Pilot Module (Chapter 4): Using the optional Pilot Module.

C. Digital Operation with RS-232 and SmartTrak Software (Chapter 5): Using the RS-232

link, the supplied SmartTrak Software package, and a PC-style computer running

Windows operating system.

This chapter will discuss the first of these—Analog Operation. Please see subsequent chapters

for other options.

Regardless of control options, the standard output for all SmartTrak instruments are two linear

analog output signals corresponding to 0% to 100% of the mass flow full-scale range. Please

note that one of these output signals is a current signal of either 0/4-20 or 0-20 mA. The other

is a voltage signal of 0-5 VDC, 0-10 VDC or 1-5 VDC. You can choose any combination of

these signals at any time in your facility.

For mass flow controllers, one input signal of 0/4-20 mA, 0-20 mA, 0-5 VDC, 0-10 VDC or 1-

5 VDC (selectable by user) may be chosen to set the gas mass flow rate to any desired value

within the range of the device. This input signal must be a direct linear representation of 0% to

100% of the desired gas mass flow full-scale value. For the location of these signals on the HD

DB-15 connector, refer to Figure 2-4 or Appendix D.

Analog Operation, Mass Flow Meter

After your instrument is installed and the system has undergone a complete leak check as

discussed in detail in Chapter 2, you are ready to supply power.

Power Your Instrument: Provide adequate power per Figure 2-5. Apply power using

Sierra’s power supply or your own power source. The green LED at the top of the inlet side

will light to confirm power. If your instrument has a Pilot Module, it will begin its start-up

cycle. See Chapter 4 for details on Pilot Module operation. NOTE: It is highly recommended

you connect power to the SmartTrak, and then power your supply (plug into wall or switch

on). The opposite may cause the unit to take longer to power on. Let the instrument warm up

for at least 15 minutes for optimal performance.

Your SmartTrak instrument is now ready for use!

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Analog Operation, Mass Flow Controller

After your instrument is installed and the system has undergone a complete leak check as

discussed in detail in Chapter 2, follow these steps:

1. The valve will remain closed until power is supplied. See Chapter 2 for wiring

instructions. Remember that the valve in the SmartTrak is not a positive shut-off

device. When power is applied, the flow control valve will operate per any

instructions it receives. When the SmartTrak is delivered, the valve will be in the

Automatic (Normal) state and the Pilot Module or analog signal will provide the

correct zero setpoint reference for the instrument. As a result, the valve will be closed.

However, upon subsequent power-ups, the valve will return to the state it was in the

last time the instrument was operated.

CAUTION: If you do not know the value of the setpoint or the valve state given

to the SmartTrak when it was last operated, you must assume that the valve will

open when power is applied. Take necessary precautions. You may use the Pilot

Module or the SmartTrak Software to check the setpoint or the valve state

currently on your instrument. See Chapter 4 or Chapter 5 for information on

Setpoint and Valve State.

2. Power Your Instrument: Provide adequate power per Figure 2-5. Apply power using

Sierra’s power supply or your own power source. The green LED at the top of the

inlet side will light to confirm power. If your instrument has a Pilot Module, it will

begin its start-up cycle. See Chapter 4 for details on Pilot Module operation. NOTE:

It is highly recommended you connect power to the SmartTrak, and then power your

supply (plug into wall or switch on). The opposite may cause the unit to take longer to

power on. Let the instrument warm up for at least 15 minutes for optimal performance.

3. Adjust the controller setpoint to the desired flow rate by supplying an appropriate

signal (mA or VDC). The effective control range of the unit is 2% to 100% of the

calibrated full scale flow range. Automatic shut-off occurs at 1.9% of the factory full

scale calibrated range unless specifically modified at time of order. SmartTrak will

immediately begin accurately monitoring and controlling the gas mass flow rate. Let

the instrument warm up for at least 15 minutes for optimal performance.

4. After 30 minutes, if your zero reading and/or calibration are off (i.e. show flow at

zero), we recommend that you perform the re-zeroing procedure. Refer to page 45

“Zero Meter Screen” for instructions.

Your SmartTrak instrument is now ready for use!

Sierra Instruments Instruction Manual SmartTrak® 100 Series

SmartTrak Features

Setpoint Adjustment

The setpoint (command) input signal you supply to SmartTrak must be a direct linear

representation of 0% to 100% of the mass flow full-scale value. Apply the setpoint signal

from pin 8 to any of the analog grounds (see Chapter 2 for wiring details). A setpoint value

of 0 VDC or mA (or 1 VDC or 4 mA) will regulate the flow to 0% and a setpoint value of

5.00 VDC (or 10 VDC or 20 mA) will adjust the flow to 100% of the instrument’s full

scale range.

When the setpoint (command) signal is applied, the flow controller will reach the setpoint

value within two seconds to within ±2% of the selected flow rate.

CAUTION: DO NOT LEAVE A SETPOINT APPLIED FOR AN EXTENDED

PERIOD OF TIME TO A CONTROLLER WHEN THE GAS SUPPLY IS

SHUT OFF OR BLOCKED. Damage may result and the instrument will become

hot to the touch. Instead, see below for use of the “Valve Close” feature which

allows you to disable the valve while maintaining the setpoint signal. This may be

set by the Pilot Module, the SmartTrak Software, or an external analog signal.

Changing the Output or Setpoint Signals

To modify the analog output or setpoint signals (from 0/4-20mA to 0-10Vdc, for

example), you must use the Pilot Module or the SmartTrak Software. The data label will

indicate the form these signals had when the instrument was last calibrated. We strongly

recommend that you adapt the data label if the configuration is changed for future

reference. See Chapter 4 or 5 for the necessary procedure.

Over-Range Condition

If the mass flow rate exceeds the full-scale range listed on the SmartTrak data label (see

samples on page 2-1), the output signal will measure above full-scale. However, the

device has not been calibrated for flows in excess of the calibrated full scale value and the

value will be both non-linear and inaccurate if an over-range condition exists. Please be

aware that the analog outputs can exceed full scale by as much as 20%, or more.

Once the over-range condition has been removed, it may take up to 30 seconds for the

SmartTrak to recover and resume normal operation. An over-range condition will not

harm the instrument.

Manual Valve Override—Valve Close

Manual valve override is provided for all Sierra mass flow controllers. This feature

includes both a valve close command and a valve maximum open command (called

purge). When the valve is directed to close or to purge, it will no longer respond to a

setpoint command.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

FOR VALVE CLOSE: connect pin 12 to analog ground

Remember that the valve in the SmartTrak is not a positive shut-off device. The

Controller will return to normal automatic operation about 4 seconds after pin 12 is

left floating.

Manual Valve Override—Valve Purge Function

The purge function opens the controller valve completely for the purpose of quickly

flushing unwanted gas from the flow path. When the valve is opened for purging, it

allows flows far in excess of the rated full scale of the controller.

FOR VALVE PURGE: connect pin 4 to pin 11.

CAUTION: PURGE MODE ALLOWS FAR MORE GAS TO FLOW

THROUGH THE CONTROLLER! BEFORE USING VALVE PURGE

OPERATION, INSURE PROPER DOWNSTREAM CAPACITY AND

VENTILATION. SPECIAL CARE SHOULD BE TAKEN WITH HP100

INSTRUMENTS, WHICH CAN ALLOW BOTH HIGH PRESSURES AND

FLOW RATES TO ESCAPE WHEN THE VALVE IS IN PURGE MODE.

IMPORTANT NOTES ABOUT PURGING

Purging Non-Reactive Gases:

Purge your SmartTrak with clean, dry nitrogen for a minimum of two hours.

Purging Reactive Gases:

One of the following methods may be used:

 Cycle purge. This is done by alternately evacuating and purging the instrument

for 2 to 4 hours with clean, dry nitrogen.

 Purge the instrument with clean, dry nitrogen for 18 to 24 hours.

 Evacuate the instrument for 18 to 24 hours.

Caution!

Sierra Instruments Instruction Manual SmartTrak® 100 Series

IMPORTANT SAFETY NOTES ABOUT PURGING

WARNING: When toxic or corrosive gases are used, purge

unit thoroughly with inert dry gas before disconnecting

from the gas line to prevent personnel from being injured

when coming in contact with the instrument.

WARNING: If an instrument used with a toxic or corrosive

gas is returned to the factory, a Material Safety Data Sheet

(MSDS) must be enclosed & attached to the outside of the

box to alert Sierra personnel of the potential hazard. Also,

make sure the inlet & outlet are securely sealed.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 4: Digital Operation with Pilot Module

Your SmartTrak instrument may be operated in three different ways:

THREE CONTROL OPTIONS

A. Analog Input/Output Operation (Chapter 3): Using analog input/output

signals at the HD DB-15 connector.

B. Digital Operation with Pilot Module (This Chapter): Using the optional Pilot

Module.

C. Digital Operation with RS-232 and SmartTrak Software (Chapter 5):

Using the RS-232 SmartTrak Software package and a computer running the

Windows operating system.

This chapter will discuss the second of these—Digital Operation with the optional Pilot

Module. Please see alternate chapters for other options.

Although you have chosen to use the optional Pilot Module, please note that all the Analog

control functions are still available on your instrument. Consult Chapter 3 for details on

Analog operation. Also, computer control using the RS-232 communication is available.

See Chapter 5 for details on operation with a computer.

CAUTION—If RS-232 digital communication is to be used in conjunction with the Pilot

Module, the HD DB15 connector must be properly wired with a three wire serial DB9

cable to your computer. Often, this is done with the same HD DB15 that supplies power to

your instrument. You can run both RS-232 communication and Pilot Module

communications in parallel, but the unit will only respond to one set of commands at a

time. DO NOT attempt to control the unit simultaneously with both the Pilot Module and

the computer, this can lock up the unit.

Introduction to Pilot Module Features and Capabilities

The optional Pilot Module functions as both display and a control unit for your SmartTrak

instrument. The standard Pilot Module is available mounted directly on the face of your

instrument or as a handheld / remote mountable control interface attached to the

SmartTrak via a detachable cable.

If your instrument has a standard Pilot Module mounted locally on the face of the unit, no

additional set-up is required. See picture below.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

On the other hand, if your instrument has a Remote Pilot Module, attach one end of the

included Category 5 (CAT 5, also called RJ-45) connecting cable into the jack at the top

of the instrument’s left side, immediately above the HD DB-15 connector.

Next, place the other end into one of the two matching jacks on the Pilot Module. For your

convenience, Sierra has provided two jacks—one on the back and one on the bottom of

the Remote Pilot Module. You may use whichever jack is most convenient for your

application as they both have identical functions.

The Pilot Module includes a large LCD graphic display screen and six buttons. The LCD

will show a variety of information and the buttons can be used to view and modify this

information. The convenient buttons are:

Left arrow

Right arrow

Up arrow

Down arrow

Enter button

Escape button

These are shown in the photo below:

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Pilot Module Operation, Mass Flow Meter

After your instrument is installed and the system has undergone a complete leak check as

discussed in detail in Chapter 2, follow these steps:

1. Power Up Your Instrument: Apply power to your instrument. See Chapter 2, Figure

2-5: Power Supply Requirements. When power is first applied, the Pilot Module will

display:

Version

2.04X

Read Parameters

Assuming no gas is flowing, after another 5-10 seconds the display will read:

Mass Flow

0.000 sl/m

Air

Up, Down

Left, Right

Enter

Escape

Caution!

The SmartTrak is

not a loop-powered

device. Do not

apply power to the

4-20 mA outputs.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

NOTE: If gas is flowing the Pilot Module will immediately begin to accurately display

the gas mass flow rate on the LCD panel. If you have chosen alternate units or another

gas, the display will show the selected units instead of the above.

2. Open the gas supply: SmartTrak is now ready to monitor the gas mass flow rate. Let

the instrument warm up for at least 15 minutes for optimal performance.

3. After 30 minutes, if your zero reading and/or calibration are off (i.e. show flow at

zero), we recommend that you perform the re-zeroing procedure. Refer to page 45

“Zero Meter Screen” for instructions.

Your SmartTrak instrument is now ready for use!

Pilot Module Operation, Mass Flow Controllers

After your instrument is installed and the system has undergone a complete leak check as

discussed in detail in Chapter 2, follow these steps:

1. The valve will remain closed until power is supplied. See Chapter 2 for

wiring instructions.

CAUTION: Remember that the valve in the SmartTrak is not a guaranteed positive

shut-off device. For dangerous applications, Sierra recommends use of an external

shut-off safety valve.

When power is applied, the flow control valve will operate per the instructions it receives

from the Pilot Module. When the SmartTrak is delivered, the valve will be in the

Automatic (Normal) state and the Pilot Module will provide the correct zero setpoint

reference. As a result, the valve will be closed. However, the valve will return to the state

it was in the last time the instrument was operated.

WARNING: If you do not know the setpoint or the valve state of the Mass Flow

Controller before it was shut down, you must assume that the valve will open when

power is applied. TAKE NECESSARY PRECAUTIONS.

2. Power Up Your Instrument: Apply power to your instrument using Sierra’s

power supply or your own input power source. See Chapter 2, Figure 2-5:

Power Supply Requirements. When power is first applied, the Pilot Module

will display:

Version

2.04X

Read Parameters

If no gas is flowing, after another 5-10 seconds the display will read:

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Mass Flow

0.000 sl/m

Air

NOTE: If gas is flowing and the Pilot Module has a setpoint greater than zero, it will

immediately begin to accurately display the gas mass flow rate on the LCD panel. If you

have chosen alternate units or another gas, the display will show the selected units instead

of those above.

3. Open the gas supply. SmartTrak is now ready to monitor and control the gas

mass flow rate. The display will show 0.000 until it is given a setpoint. Let the

instrument warm up for at least 15 minutes for optimal performance.

4. After 30 minutes, if your zero reading and/or calibration are off (i.e. show

flow at zero), we recommend that you perform the re-zeroing procedure. Refer

to page 45 “Zero Meter Screen” for instructions.

Your SmartTrak instrument is now ready for use!

CAUTION: DO NOT LEAVE A SETPOINT APPLIED FOR AN EXTENDED

PERIOD OF TIME TO A CONTROLLER WHEN THE GAS SUPPLY IS SHUT

OFF OR BLOCKED. Damage may result and the instrument will become hot to the

touch. Instead, see below for use of the “Valve Close” feature which allows you to disable

the valve while maintaining the setpoint signal. This may be set by the Pilot Module, the

SmartTrak Software, or an external analog signal.

Using the Pilot Module Menus & User Interface

The features of the Pilot Module can be considered in three groups:

1 Upper Level Screens: display information (no password is required to view this information).

These include:

 Mass flow rate

 Gas (10 options pre-programmed)

 Engineering units (mass per unit time)

 Current Setpoint with units

Sierra Instruments Instruction Manual SmartTrak® 100 Series

 Source of Setpoint (analog or digital and type)

 Valve operation mode (normal, valve close or purge)

 Current meter full scale value with units (user selectable)

2 Lower Level Screens: permit changes to instrument operation. They are password protected.

These include:

 Setpoint value

 Engineering units

 Gas

 Valve operation

 Source of the setpoint signal

 Form of the output signals

 Full scale of the instrument

 Password

 Zero

 Span

3 Maintenance Features:

 Re-boot the SmartTrak microprocessor. Press the LEFT ARROW, DOWN

ARROW, ENTER, AND ESCAPE keys at the same time.

 Move the decimal point. Navigate to the “change the setpoint” menu. Press ENTER

to make one of the digits flash. While it is flashing, press ESCAPE at the same time you press

LEFT ARROW or RIGHT ARROW.

 Return all parameters to the factory default values. Navigate to the “Change the

Setpoint” menu. Press LEFT ARROW, UP ARROW, and ENTER at the same time. Choose

“yes” to restore factory default settings.

 If you are trying to navigate using the pilot but the message appears, “Must be

in Pilot Mode,” use the LEFT ARROW from this screen to navigate to the “Change Setpoint

Source” and change to “Pilot / RS-232.” Escape and try again.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Map of the Pilot Module Interface

The Pilot Module user interface is presented below in a graphical format. Once you have

some familiarity with the user interface, you may find you want to make a copy of this and

keep it with the instrument for reference. You can find a larger version of this Flow Chart

in Appendix G.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

The seven Upper Level Screens display a variety of information. You are able to move

between the screens by pressing the left or right arrows. No password is required for the

Upper Level Screens.

Mass Flow Screen

When the instrument is powered up, or whenever the escape button is pressed, it always

returns to the Mass Flow Screen. This screen displays the mass flow rate, the engineering

units and your gas choice. It looks something like this:

Mass Flow

0.000 sl/m

Air

Setpoint Screen

Pushing the right arrow takes you to the Setpoint Screen. The Setpoint Screen displays

the current setpoint given to the controller, the engineering units and the source of the

setpoint signal.

The source of the setpoint can be:

 Pilot Module/RS-232

 0/4-20 mA

 1-5 Vdc

 0-5 Vdc

 0-10 Vdc

For operation with the Pilot Module, the display will look something like this:

Setpoint

10.00 sl/m

Pilot Module/RS-232

If this screen does not show “Pilot Module/RS-232” at the bottom, you will not be able to

give the controller a setpoint command from the Pilot Module because the instrument is

waiting for an analog setpoint. See section below titled “Change Setpoint Source Screen”

to change the source of the setpoint signal. Alternately, you may supply an analog

setpoint to the HD DB-15 connector (see Chapter 3).

Valve Position Screen (Mass Flow Controllers only)

Pushing the right arrow again takes you to the Valve Position Screen, if you have a Mass

Flow Controller. This screen will display the current state of the SmartTrak valve.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

The state of the valve can be:

1. Closed (Remember that the SmartTrak is not a positive shut-off device).

2. Purge--Maximum Open (recommended 120% of the calibrated full scale value, but

can be much more and can be dangerous)

3. Automatic (the normal position, where the controller responds to a setpoint signal).

WARNING: The flow rate in Purge is much greater than the calibrated

full scale value and as a result can be dangerous.

For normal operation of the flow controller, this screen should display:

Valve

Automatic

Normal

If this is visible, the instrument will automatically control flow as soon as a setpoint is

given to it. If this screen displays Closed or Purge, the instrument has been placed into an

override position and it will not respond to any setpoint signal. The valve state may be

changed using the “Change Valve Operation” as described on page 4-16.

Full Scale Screen

Pressing the right arrow again takes you to the Full Scale Screen. This screen displays the

current full scale value of the instrument with engineering units. It also displays the gas.

Note that this is not necessarily the factory calibrated full scale value. The screen will

display:

Full Scale

10.00 sl/m

Nitrogen

To change the full scale value, see the section below titled “Change Full Scale Screen.”

Pressing the right arrow again takes you back to the Mass Flow Screen.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Lower Level Screens (Changing Parameters)

Getting to the Lower Level Screens:

Your instrument is password protected so that unauthorized personnel will be unable to

change the operating parameters of SmartTrak. To enter the Lower Level Screens at any

time you must first supply the correct password.

Password Screen: By pressing the “enter” key from any of the Upper Level Screens

you will come to the Password Screen. (If you do not know if you are in an Upper Level

Screen, press escape and you always automatically go to the Mass Flow Screen in the

Upper Level) The display will show:

Enter Password

0000

The first digit will blink. At this point, you must enter the correct password to gain access to

the Lower Level Screens.

 If the instrument is being operated for the first time or if no password has ever been

set on the instrument: You can use the factory default password. The factory default

password is “0000.” To proceed to the Lower Level Screens by using the factory default

password, simply press the “enter” key a second time. If you want rapid access to permit

regular changes to your instrument and you do not desire a password, this is the fastest

way to enter the lower level.

 If You Have a Password: If you have already set a password, enter it now. To enter the

password, push the up arrow to increase the blinking digit or the down arrow to decrease

the blinking digit. To move to the next digit, press the left or right arrow and repeat the

process. When you have selected your four digit password, press the enter key.

 If You Want to Set a New Password: If you want to change the password, you must first

get to the Lower Level Screens. Proceed by entering your known password or if no

password has ever been set on the instrument, us the factory default password. Follow the

instructions in the “Change Password Screen” section found later in this chapter.

If the password you have entered is correct, you will enter the Lower Level at the Change

Setpoint Value Screen.

If the password is not correct, the display will show:

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Access Denied

Press any button

To continue

When you press any button, you will return to the Mass Flow Screen in the Upper Level. Press

the “enter” key to try again.

LOST PASSWORDS & GENERAL CUSTOMER SERVICE: If you lose your password, it

will be necessary to contact one of Sierra’s Technical Support Centers.

Email Customer Service: service@sierrainstruments.com

FACTORY USA Customer Service:

TOLL FREE: 800-866-0200

PHONE: 831-373-0200

FAX: 831-373-4402

EMAIL: service@sierrainstruments.com

European Customer Service:

PHONE: +31 72 5071400

FAX: +31 72 5071401

EMAIL: service@sierra-instruments.nl

Asia Customer Service:

PHONE: + 8221 5879 8521

FAX: +8621 5879 8586

EMAIL: www.sierra-asia.com

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Making Changes Using the Lower Level Screens:

The ten Lower Level Screens are at the heart of Dial-A-Gas®, allowing you complete

control of your SmartTrak instrument. It is possible to make several changes on different

Lower Level Screens before exiting.

For example, you could change between one of the ten pre-programmed gases, change the

engineering units, and change the setpoint all in one visit to the Lower Level Screens. The

SmartTrak will make each adjustment as you complete it. At any time, you may press the

escape button to return to the Upper Level.

Change Setpoint Value Screen

This screen is the entry point to the Lower Level. As soon as a correct password is

entered, you will arrive here. If you are already in the Lower Level Screens, push the right

or left arrow until you reach the Change Setpoint Value screen. The display will show:

Change Setpoint

00.00 sl/m

Air

This is the position where you can change the setpoint value of the mass flow controller.

To make a change to the displayed value, press the enter key. The first number in the

display will blink. Use the up and down arrows to change the value of this digit or the left

and right arrows to move to another digit. For example, if you wish to enter a setpoint of

12.5 sl/m, push the “up” arrow once when the first digit is blinking. You will see:

Change Setpoint

10.00 sl/m

Air

Next, press the “right” arrow so that the second digit blinks. Push the up arrow twice.

You will now see:

Change Setpoint

12.00 sl/m

Air

Press the right arrow again. The first digit after the decimal point will now blink. Press the

up arrow 5 times until you see:

Change Setpoint

12.50 sl/m

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Air

Now that you have made your selection, press the enter key. The display from our

example will show:

Change Setpoint

12.50 sl/m

Air

If you are finished or wish to observe the changes you have made on the LCD panel, press

the escape key to return to the Upper Level Mass Flow Screen.

If you prefer to make additional changes, use the left and right arrow keys to move to

other Lower Level Screens.

Note: If you enter a Setpoint that exceeds the full scale value (displayed in

the “Full Scale” screen in the Upper Level), the SmartTrak will

automatically modify this value to equal the current full scale value. For

example, if the current full scale value of your instrument is 10 slpm and

you have entered a setpoint of 15 slpm, the SmartTrak will modify your

setpoint to 10 slpm when you implement the change. The Setpoint Value

screen will show 10 slpm, not 15 slpm.

Change Units Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Units screen. To get to this screen at any time, Press Escape—Press Enter—

type password and Press Enter. Then, press the Right or Left arrow until you reach the

Change Units Screen.

The display will show:

Change Units

sl/m

Caution!

The SmartTrak will not

allow you to enter a

setpoint greater than the

current full scale value

set on the instrument.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

If you wish to change the engineering units, press the enter button at this point. The “mass

units” will begin to blink. Use the up or down arrows to select an alternate unit. You can

choose from the following mass units:

scc

Ncc

SCF

NM3

SM3

When you are satisfied, push the left or right arrow. You will now see the “time unit”

blink. Use the up or down arrows to select your choice of time units. You can choose

from the following time units:

m (minutes)

H (hours)

S (seconds)

When you are finished, press the enter button again. You will see:

Change Units

XXX/x

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens and to observe your change.

NOTE: If a small unit is chosen, the device might not be able to display the valve and

might show 9999. You might need to restore factory defaults. See Maintenance Functions

starting on page 47.

Change Gas Screen (Dial-A-Gas®)

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Gas screen. To get to this screen at any time: Press Escape—Press Enter—

type password and Press Enter. Then, press the Right or Left arrow until you reach this

screen. The display will show:

Change Gas

Nitrogen

Sierra Instruments Instruction Manual SmartTrak® 100 Series

If you wish to change the gas used in the instrument, press enter. The name of the gas will

blink. Use the up and down arrows to make your selection. When you reach the desired

gas, press enter. You will see:

Change Gas

XXXX

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens and to observe your change.

Note: your instrument comes with 10 pre-programmed standard gases. These are listed in

the Specifications in Appendix B. SmartTrak may be ordered with alternate gases

programmed. If your device was so ordered, you may choose from these 10 gases instead.

You may see the 10 gases programmed in your instrument by using this screen and simply

scrolling up or down.

Change Valve Operation-Close, Purge

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Valve Operation screen. To get to this screen at any time: Press Escape—

Press Enter—enter password and Press Enter. Then, press the Right or Left arrow until

you reach this screen. The display will show:

Change Valve

Operation

Automatic

From this screen you may set the valve to open all the way (“Purge”), force the valve to

remain closed until further changes are made (“Valve Closed”) or set the valve to control

flow when it receives a setpoint from some source (“Automatic”). To make a change to

the valve operation, press the enter key. Use the up and down arrows to make your

selection. When you are satisfied, press the enter key again. You will see:

Change Valve

Operation

XXXXX

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens.

Caution!

The SmartTrak

alve is not a positive

shut-off device.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

NOTE: The valve will move to the desired position immediately when you press the enter

key.

IMPORTANT SAFETY NOTES ABOUT PURGING

WARNING: When toxic or corrosive gases are used, purge unit

thoroughly with inert dry gas before disconnecting from the gas

line to prevent personnel from being injured when coming in

contact with the instrument. Chapter 3 discusses how to purge

your instrument. Always neutralize any toxic gas trapped inside

the instrument before removing it from the gas line.

WARNING: The flow rate in Purge is much greater than the

calibrated full scale value and as a result can be dangerous.

Change Setpoint Source Screen (mass flow controllers only)

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Setpoint Source screen. To get to this screen at any time: Press Escape—Press

Enter—enter password and Press Enter. Then, press the Right or Left arrow until you

reach this screen. The Change Setpoint Source screen allows you to re-configure the

location and type of the setpoint for the SmartTrak controller. If you intend to supply the

setpoint command signal from the Pilot Module or a computer using the RS-232 link, the

display must show:

Change Setpoint

Source

Pilot/RS232

If, instead of using the Pilot Module or the RS-232 link, you prefer to supply an analog

setpoint signal to the SmartTrak, press the enter button. “Pilot/RS232” will begin to blink.

Use the up and down arrows to make your selection from the following choices:

0-5 VDC

0-10 VDC

1-5 VDC

0/4-20 mA

Pilot/RS232

Sierra Instruments Instruction Manual SmartTrak® 100 Series

When you are satisfied, press enter. You will see:

Change Setpoint

Source

X-XX XX

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens.

Caution: If you change the source of the setpoint to an analog value, you

will not be able to control your SmartTrak mass flow controller via the

Pilot Module or the RS-232 link.

Change Output Signals Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Output Signals screen. To get to this screen at any time: Press Escape—Press

Enter—enter password and Press Enter. Then, press the Right or Left arrow until you

reach this screen. The display will show:

Change Output

Signals

0-5 VDC/0/4-20 mA

Here you can re-configure the analog output signals for the instrument. The SmartTrak

always outputs one current signal of 0/4-20mA but the voltage signal may be selected

using this screen. Use the up and down arrows to make your selection. You can choose

between:

0-5VDC and 0/4-20mA

0-10VDC and 0/4-20mA

1-5VDC and 0/4-20mA

When you are finished making your selection, press enter. The screen will read:

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Change Output

Signals

X-XX XX/X-XX XX

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens.

Change Full Scale Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Full Scale screen. To get to this screen at any time: Press Escape—Press

Enter—enter password and Press Enter. Then, press the Right or Left arrow until you

reach this screen. The display will show:

Change Full Scale

XX.XX sl/m

Air

This screen allows you to re-range the outputs of your instrument. You may select any

full-scale value between 100% and 50% of the displayed maximum value (this is the

factory full-scale calibration value).

The new full-scale value that you select will re-define the analog outputs of the

instrument. The 20 mA signal and the corresponding voltage signal (5 VDC, 1-5 VDC or

10 VDC) will now represent this new full-scale value.

Caution: Changing the full-scale value of the instrument does not affect the

accuracy.

The accuracy is always 1% of full scale under calibration conditions of the original

factory full-scale calibration value.

Caution: For any instrument, if a value greater than the factory full scale calibration

value is entered on this screen, the SmartTrak will modify the requested value to

equal the factory full scale calibration value.

If you choose to change the full-scale value, press the enter key. The first digit will blink.

Use the up and down arrows to adjust the value of the digit or the left and right arrows to

choose another digit. When you have completed your modification, press the enter key.

The display will show:

Change Full Scale

XX.XX sl/m

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Air

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens.

Change Span Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Span screen. To get this screen at any time: Press Escape—Press Enter—enter

password and Press Enter. Then, press the Right or Left arrow until you reach this screen.

From this screen you can change the instrument’s span distance by a percentage factor

ratio. For example, if your meter is reading 1% high of reading, change span to 0.990

(99.0%) and the full scale value should be reduced by 1%. If your controller is controlling

1% below of reading, the same change will bring it in. If the meter is reading 1% low

(controller controls 1% high), then change span to 1.010 (101.0%). The display will show:

Change Span

1.000

Air

To make a change, press the enter key. The first digit will begin to blink. Use the up and

down arrows to modify this digit or the left and right arrows to choose another digit.

When you are satisfied, press enter. The display will show:

Change Span

X.XXX

Air

Keep in mind that you can change the span for each individual gas, thus, a change in the

span to one gas will not affect the span of another gas. You can make additional changes

by using the left and right arrow keys to move to other Lower Level Screens. You may

also choose to press the escape key to return to the Upper Level Screens.

Zero Meter Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Zero Meter screen. To get this screen at any time: Press Escape—Press Enter—enter

password and Press Enter. Then, press the Right or Left arrow until you reach this screen.

From this screen you can change the zero flow bridge differential value to match the zero

flow conditions of your application. Mount (or place) the instrument where it is intended

Sierra Instruments Instruction Manual SmartTrak® 100 Series

to be used, minding orientation, tilt, etc.; The accuracy of this function is dictated on how

close to operating conditions the unit is when the meter is zeroed. The display will show:

Zero Meter

Confirm zero flow

Then press enter

Once you push enter, the unit will monitor the sensor bridge differential value. The

display will show:

Zero Meter

Confirm zero flow

New Zero

Upon pressing the enter key again, the unit will record the bridge differential value to the

zero flow condition, leaving you with a freshly “zeroed” instrument! You can make

additional changes by using the left and right arrow keys to move to other Lower Level

Screens. You may also choose to press the escape key to return to the Upper Level

Screens.

Change Password Screen

If you are already in the Lower Level Screens, push the right or left arrow until you reach

the Change Password screen. To get to this screen at any time: Press Escape—Press

Enter—enter password and Press Enter. Then, press the Right or Left arrow until you

reach this screen.

From this screen you can change the instrument password from the factory default to any

four-digit password of your choice. The display will show the factory default password of

four zero’s: “0000”. The display will show:

Change Password

0000

To make a change, press the enter key. The first digit will begin to blink. Use the up and

down arrows to modify this digit or the left and right arrows to choose another digit.

When you are satisfied, press enter. The display will show:

Change Password

0000

You can make additional changes by using the left and right arrow keys to move to other

Lower Level Screens. You may also choose to press the escape key to return to the Upper

Level Screens.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Caution: Once you change the Password, you will not be able to enter the Lower

Level without it. Be certain the new password is recorded.

Lost Passwords and General Customer Service

The “creator” password is 6363- this will override all other passwords. If this does not

work, it will be necessary to contact one of Sierra’s Technical Support Centers.

Email Customer Service: service@sierrainstruments.com

FACTORY USA Customer Service:

TOLL FREE: 800-866-0200

PHONE: 831-373-0200

FAX: 831-373-4402

EMAIL: service@sierrainstruments.com

European Customer Service:

PHONE: +31 72 5071400

FAX: +31 72 5071401

EMAIL: service@sierra-instruments.nl

Asia Customer Service:

PHONE: + 8221 5879 8521

FAX: +8621 5879 8586

EMAIL: www.sierra-asia.com

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 5: Digital Operation RS-232 & SmartTrak Software

Your SmartTrak instrument may be operated in three different ways:

THREE CONTROL OPTIONS

A. Analog Input/Output Operation (Chaper 3): Using analog input/output signals at the

15-pin mini- D connector.

B. Digital Operation with Pilot Module (Chapter 4): Using the optional Pilot Module.

C. Digital Operation with RS-232 and SmartTrak Software (This Chapter): Using the RS-

232 SmartTrak Software package and a PC-style computer running the Windows

operating system.

This chapter will discuss “C” above—Digital Operation with your computer via RS-232

and SmartTrak Software. Although you have chosen to use the RS-232 option, please note

that all the Analog control functions are still available on your instrument. Consult Chapter

3 for details on Analog operation. Also, the Pilot Module may be used so long as you

make RS-232 communication with the supplied CRN cable. See Chapter 4 for details on

operation using the Pilot Module.

If you prefer to write your own software to communicate with the SmartTrak over the RS-

232 link, this is certainly possible. Sierra Instruments will provide the Source Code

including the Command Set upon request. Unfortunately, this is the limit of software

Technical Support we can extend.

Summary of the SmartTrak Features

Your SmartTrak instrument may be easily monitored and adjusted using the supplied

SmartTrak Software package. You should note that the SmartTrak Software was designed

with all the same functions as the Pilot Module. The software allows you to see all

changes & parameters at a glance and will allow you to make changes quickly and easily.

For review, the features of the SmartTrak include:

1. Top Level Screens that display information In our software, these screens appear as

yellow boxes. They include:

 Mass flow rate

 Gas (10 options pre-programmed, one must be AIR)

Sierra Instruments Instruction Manual SmartTrak® 100 Series

 Engineering units (mass per unit time)

 Current Setpoint with units

 Source of Setpoint (analog or digital and type)

 Valve operation mode (normal, valve shut or purge)

 Current meter full scale value with units (user selectable)

2. Lower level Screens that permit changes to instrument operation In our software, these

screens appear as white boxes. They include:

 Setpoint value

 Engineering units

 Gas

 Valve operation

 Source of the setpoint signal

 Form of the output signals

 Full scale of the instrument

 Zero meter

 Span meter

3. Additional Features include:

 Re-boot the SmartTrak microprocessor

 Change the Communication Port

 Links to Sierra Instruments’ Web Site

 Specifications

Power Up Your Instrument

CAUTION: The SmartTrak is not a loop-powered device. Do not apply power to the

0/4-20mA outputs.

After your instrument is installed and the system has undergone a complete leak check

(discussed in detail in Chapter 2), apply power using Sierra’s power supply or your own

input power source. See Chapter 2, for power supply requirements. The green LED at the

top of the left side will light. If your instrument has a Pilot Module, it will begin its start-

up cycle. See Chapter 4 for details on Pilot Module operation.

If you have a Mass Flow Controller, the valve will remain closed until power is supplied.

Remember that the valve in the SmartTrak controller is not a positive shut-off device.

When power is applied, the flow control valve will operate per any instructions it receives.

When the SmartTrak is delivered, the valve will be in the Automatic (Normal) state and

the Pilot Module will provide the correct zero setpoint reference for the instrument. As a

result, the valve will be closed. However, the valve will return to the state it was in the

last time the instrument was operated.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CAUTION: If you do not know the position of the valve before it was shut down, you

must assume that the valve will open when power is applied. Take necessary

precautions.

Power Up Your Computer

Apply power to your computer per the manufacturer’s recommendations. The SmartTrak

Software is compatible with any computer running a windows operating system of 2000 or

above.

Loading the SmartTrak Software

If you are using your SmartTrak instrument or your computer for the first time, it is

necessary to install the SmartTrak Software into your computer. If this software is already

installed, skip this section. If you want to upgrade the SmartTrak Software because you

have a higher revision, continue below.

Each SmartTrak order is shipped with a CD-ROM containing the SmartTrak Software.

Locate this disk. At this point, EXIT OUT OF ANY OPEN APPLICATIONS BEING

RUN ON YOUR COMPUTER.

PROCEDURE:

1. Insert the SmartTrak Software CD into your CD-ROM

2. Open “My Computer” on your desktop

3. Open the CD Named: “SmartTrak” on your D-drive

4. Run “setup.exe”

5. Follow the instructions on screen

CAUTION: It is recommended that you do not change the default installation

directory for this software. The default directory is:

C-drive:\ Program Files.

Changing the installation directory may lead to malfunctions in the software.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Connecting SmartTrak to Your Computer

If your computer has a serial port…

We suggest you use the optional Sierra Instruments RS-232 communication cable (part

number CRN). This pre-manufactured cable has the correct DB9 connection to mate with

most computers and a CAT 5 connector which should be connected to the jack on the side

of your new instrument.

With your SmartTrak POWERED, plug CAT 5 connector into the receptacle on the side

of your SmartTrak instrument (See Figure 5-1: SmartTrak Connections). Next, plug the

DB-9 connector to an appropriate serial port on your computer. Note the serial port

channel number, especially if there is more than one serial port available. If your

computer has only one serial port, it is often named “Comm Port 1.” You will need to

know the Comm Port number to communicate with your SmartTrak instrument.

CAUTION: The CAT-5 connector on the side of the SmartTrak is NOT an Ethernet

connector. Do not plug an Ethernet cable here as damage may result.

All electrical connections for your SmartTrak instrument are made on the left (inlet) side

panel.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Figure 5-1: SmartTrak Connections

If you do not have the Pilot Module display, you can connect pins 7 (serial transmit), 13

(serial receive) and 3 (analog ground) on the instrument’s 15-pin mini- D Connector to an

appropriate serial port using a standard DB-9 connector instead of using the supplied CRN

cable (see Chapter 2 for wiring instructions). If you use the mini-D connector for your

RS-232 communication, please shield the cable to prevent EMI from disrupting

communications.

If your computer has no serial port, but has a USB port…

Perform the identical connections as if your computer has a serial port (see previous

paragraph), but do not plug the DB-9 connector into your computer. Instead, purchase an

appropriate Serial to USB converter. Plug the DB-9 connector into your Serial to USB

converter and then plug the USB connector into your computer. Load the necessary

CAT 5

HD DB 15

Sierra Instruments Instruction Manual SmartTrak® 100 Series

software driver into your computer to operate the converter (software and instructions

should come with the converter).

Your computer will assign a Comm Port number to your USB adapter, but it will probably

not be “Comm Port 1.” Use the Control Panel feature of your computer to identify which

Comm Port number has been assigned to your USB adapter.

Open “My Computer” from your desktop.

Next, open “Control Panel.”

Then, open “System.”

Click on the tab labeled “Device Manager.”

Scan down the list until you see the word “Ports,” then right double-click to examine the

available Com Ports. Record the number(s). You will need to enter this number or one of

these numbers to communicate with your SmartTrak instrument.

If you plan to control more than one SmartTrak instrument from your

computer…

If your computer has a number of serial ports equal to the number of instruments you wish

to operate, simply plug each instrument into a separate serial port as directed above in “If

your Computer has a Serial Port…”

If you wish to operate more instruments than your computer has serial ports, you will

usually have to use USB ports instead. If the number of USB ports in your computer

equals the number of instruments, then purchase one serial to USB converter per

SmartTrak and follow the instructions above. If you have more instruments than ports,

you will need to acquire an edge port device (converts one USB port into several serial

ports) or a USB hub (converts one USB port into many USB ports). Once you have

attached the necessary device and loaded the proper drivers, connect your SmartTrak

instruments to the serial or USB ports as outlined in the sections above. Open a separate

software window for each meter and you can monitor all of them at one time.

If connecting your computer to the SmartTrak creates any confusion, please contact Sierra

Instruments or your IT person for assistance.

Running the SmartTrak Software

Locate the file named “SmartTrak” and open it. You will see the following screen: This is

the main data screen. First, you must select the proper comport.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Select the comport pull down menu:

Use the pull-down menu to choose the port number that corresponds to the serial port

channel your SmartTrak is connected to (from 1 to 255). If you have only one serial port,

select “Comm Port 1.” When finished, click on the box marked “OK.”

You will be returned to the the SmartTrak Master Screen. The screen is the same for both

meters and controllers. Controller functions will not be active for meters and vice versa

Establishing Communication

If the Screen appears with all the yellow and white boxes full, the SmartTrak instrument

has established communication with your computer.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Proceed to the next section.

If the screen appears, but the yellow and white boxes are all empty, you have selected the

wrong “Com Port number.” See the section titled “Com Port” on page 5-16 for

instructions on how to change the communication port number.

If the screen appears, but only the Mass Flow box shows a value, you are using the correct

Com Port, but your computer is not talking to the SmartTrak. To begin communication,

move the mouse pointer to the top center screen and left click on the words “Get

Parameters.” then values will fill all the boxes on the screen. Communication has been

established. Your computer is now able to control your SmartTrak instrument.

Your SmartTrak instrument is now ready for use!

Sierra Instruments Instruction Manual SmartTrak

100 Series

Using the SmartTrak Software

A. Upper Section of Software Window

Across the upper half of the SmartTrak Software window you will see 3 yellow boxes.

These are titled:

 Flow

 Setpoint (flow controllers only. Will show zero for meters)

 Full Scale

These boxes display the current operating conditions of your SmartTrak instrument. If you

have the Pilot Module, these boxes on the upper half of the software screen are identical to the

Upper Level Screens on the Pilot Module discussed in Chapter 4. The features of these boxes

are described below.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Flow

The box displays the mass flow rate, the engineering units, the gas choice and the analog

output choice.

Setpoint

If you have a Mass Flow Meter, this box is zero (as shown above). The Setpoint box displays

the current setpoint given to the flow controller, the engineering units, the source of the

setpoint signal, the current valve state (open, closed or purge) and the dac values for the valve

(for Sierra troubleshooting only).

CAUTION: If this box does not show Pilot Module/RS-232 on the first line, you will

not be able to give the controller a setpoint command from your computer. This is

because you SmartTrak is expecting an analog setpoint at the 15-pin mini- D-

connector. To supply a setpoint from your computer, see “Change Setpoint Source”

on page 5-13.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Note on Valve

If you have a Mass Flow Meter, this information can be bypassed. For normal operation of

the flow controller, this line should display

Automatic.

If this is visible, the instrument

will automatically control flow as soon as a setpoint is given to it.

If this box does not display “Automatic,” it will not be possible to control gas flow. Your

valve is locked open (Purge) or closed (Closed). See the section titled “Change Valve

Operation” below for further instructions

Full Scale

This screen displays the current full-scale value of the instrument with engineering units. It

also displays the com port selected and a counter for the com port (for Sierra Troubleshooting

only).

Sierra Instruments Instruction Manual SmartTrak

100 Series

B. Lower Section of Software Window– Changing

Parameters

Across the bottom half of the screen you will find a number of white boxes. Each box

allows you to adjust one or more meter functions. The various functions are reviewed in

the following section.

Change Setpoint Value (flow controllers only)

This is the box that allows you to change the setpoint of the mass flow controller. To

make a change to the setpoint value, move your pointer to this box and left click. You

may change a digit or delete the current setpoint and key in a new one. When you have

made your selection, press the enter key to implement it.

If, instead of using the RS-232 link or the Pilot Module, you prefer to supply analog set

point signal to the SmartTrak, activate the pull-down menu. Make your selection carefully

and click. Your selection will appear in the box and, after a few seconds, it will also

appear in the yellow setpoint box.

CAUTION: If you change the source of the setpoint to one of the analog values, you

will not be able to control your SmartTrak with your computer.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Change Valve Operation –Automatic, Close, Purge

This function enables or overrides any setpoint command given to the SmartTrak. At

start-up, the box will show Automatic:

In this normal operating position, the valve is ready to control flow when it receives a

setpoint from some source. Using this box, you may set the valve to open well beyond its

normal maximum position (“Purge”) or force the valve to remain shut regardless of

setpoint (“Closed”). Use the pull down menu to make this change. Choose “purge” to

fully open the valve regardless of the given setpoint or choose “closed” to override any

setpoint command and close the valve.

CAUTION: Do not activate the valve state pull-down menus unless you are ready to

make this change. Once in the pull-down menu, if you click on one of the selections,

the valve operation will change immediately. Remember that the SmartTrak is not a

positive shut-off device.

Change Gas (Dial-A-Gas

)

This box will display the current gas selection. If you wish to change the gas used in the

instrument, activate the pull-down menu. The 10 gases programmed into the memory of

your SmartTrak will be displayed.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Choose the correct gas for your current application and click. The new gas selection will

appear in the box. Within a few seconds, the new gas selection will also appear in the

yellow Flow box and the values of the mass flow, setpoint and the full scale will be

adjusted for this new gas. This is normal. In some cases, where the thermal properties of

one gas are very similar to another, these values may not change very much.

Change Units

This box will show the current engineering units. Should you wish to change the

engineering units, use the pull-down menu.

Make your selection, noting that each engineering unit is available with 3 different time

constants: seconds, minutes and hours. Choose the combination of units and time

constants you desire, then click. The box will display your new selection. Within a few

seconds, the units will change in the Flow, Setpoint, and Full Scale boxes and the

numerical values will be adjusted into the new units.

Change Analog Out

This box will show the two analog output signals currently selected for your instrument.

To re-configure the analog output signals, use the pull-down and make your selection. The

SmartTrak will adjust the analog output voltage signal per your instruction.

Sierra Instruments Instruction Manual SmartTrak

100 Series

C: ADJUSTMENTS:

Clicking on “adjustments” brings up the meter settings screen.

Sierra Instruments Instruction Manual SmartTrak

100 Series

This screen allows for zeroing, spanning and adjusting the full scale for each of the 10

gases in the gas table individually. The screen will be displayed for the gas selected in the

gas table on the main screen

Caution: the values in this screen can be set individually for each of the 10 gases.

MODIFICATIONS of this screen will only be applicable to the gas displayed. To modify

other gases, change the gas in the pull down menu and repeat.

Change Zero:

This button automatically zeros the meter.

To perform this zero procedure, you must make sure that the actual flow is zero.

Attempting to zero the meter or controller while there is a flow condition will cause an

Sierra Instruments Instruction Manual SmartTrak

100 Series

offset. Also, the best zero is obtained by using the actual gas at the listed operating

pressure.

After 30 minutes, if your zero reading and/or calibration are off (i.e. show flow at

zero), we recommend that you perform the re-zeroing procedure. Refer to page 45 “Zero

Meter Screen” for instructions.

Default zero:

This will set the zero value back to factory conditions. Use this in order to recover from a

mistaken entry.

Span:

This allows the user to enter an offset to the span to adjust the meter outputs to match

another device or field conditions. The span is a MULITPLIER and will multiply all

outputs by the entered amount.

Sierra Instruments Instruction Manual SmartTrak

100 Series

For example, the meter reads 98. The desired reading is 100. A span value of 1.02 will

adjust the meter output to read 100.

Caution: this number should not be adjusted beyond 0.8 to 1.2.

Change full scale:

This setting allows you to change the full scale of your instrument

The instrument will display its current full-scale value. If your instrument is new or this

value has never been modified, the value displayed will be 100% of the maximum flow

rate your SmartTrak can measure or control without factory re-calibration. This is the

number listed here:

Sierra Instruments Instruction Manual SmartTrak

100 Series

The instrument’s maximum flow rate is also recorded on the data label (at the back of the

instrument) and on the calibration certificate.

You may select any full-scale value between 100% and 50% of the maximum full-scale

value. If you select a new full-scale value, it will re-define the analog outputs of the

instrument. The 20 mA signal and the corresponding voltage signal (5 or 10 VDC) will

now represent this new full-scale value.

To change the full-scale value of your device, modify one digit or erase the current value

displayed and type in your desired full-scale value. When you are satisfied with your

selection, press the enter key. The new full-scale value will appear in the white box. A

few seconds later, the same value will appear in the yellow box in the upper half of the

screen titled “Full Scale.”

CAUTION: The Change Full Scale function allows you to re-range your instrument,

but it is important to be aware of the limitations of this function.

Changing beyond recommended values may require a new LFE or even flow body be

installed. If in doubt, select factory reset and both zero and span values are reset to

factory values

Sierra Instruments Instruction Manual SmartTrak

100 Series

Here are some guidelines to remember if you choose to modify the Full Scale Value:

Changing the full-scale value of the instrument does not affect the accuracy of the

measurement. Instrument accuracy is a percentage of the original factory full-scale value

If you enter a full-scale value beyond the instrument’s calibrated maximum range, the

SmartTrak will automatically modify the full-scale to equal the factory full-scale value.

Below 1% of the original factory full-scale value for a meter and 2% for a controller, your

SmartTrak is programmed to read zero because the error in the measurement may exceed

the measurement itself.

Other Useful Features

There are several additional features that you may utilize via the SmartTrak Software.

Across the top of the SmartTrak Master Screen, you can see these options:

Com Port

Read Parameters

Info

To use any of these functions, simply place the mouse pointer onto the name of the feature

you wish and left click.

Com Port

To change the communication port for the SmartTrak, click on this feature. Use the pull

down menu to choose the Comm Port that your SmartTrak’s serial connector is plugged

into. Remember that the software asks you to confirm your Comm Port every time you re-

start. This feature is designed for situations when you have multiple Comm Ports available

and you wish to move the SmartTrak from one to another or you are controlling more than

one SmartTrak at one time.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Read Controller Parameters

Use this function if you believe your computer and your SmartTrak instrument may have

stopped communicating. It is essentially a re-boot command for the SmartTrak

microprocessor. When you switch Comm Ports, it is recommended that you use this

function. If your computer requires a re-boot and you do not unplug your SmartTrak, the

communication link will be broken. Use this function to re-establish communication. If

at any time, the instrument does not appear to be sending correct information to the

SmartTrak software, try this command to ensure communication.

Info

This gives information about the meter serial and software revisions.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

CHAPTER 6: TECHNICAL SUPPORT & SERVICE

Technical Support

If you encounter any problem with your instrument, review the configuration information

for each step of the installation, operation, and set up procedures as explained in this

manual. Verify that your settings and adjustments are consistent with factory

recommendations.

If the problem persists, Sierra is eager to help you. You may contact us at any of the

following Technical Support Centers. It may also help to call your Sierra Sales Agent, who

is also well trained in the operation of the product.

IMPORTANT: When contacting Technical Support, make sure you have

included the following information:

 The flow range, serial number, Sierra order number and model number (all marked on

the instrument data label).

 The problem you are encountering and any corrective action taken.

 Application information (gas, pressure, temperature, pipe and fitting configuration).

CUSTOMER SERVICE AND SUPPORT INFORMATION:

Email Technical Support: service@sierrainstruments.com

Email Sales: sales@sierrainstruments.com

FACTORY USA

TOLL FREE: 800-866-0200

PHONE: 831-373-0200

FAX: 831-373-4402

EMAIL: service@sierrainstruments.com

European Sales & Service Center:

PHONE: +31 72 5071400

FAX: +31 72 5071401

EMAIL: service@sierra-instruments.nl

Asia Sales & Service Center:

PHONE: + 8221 5879 8521

FAX: +8621 5879 8586

EMAIL: www.sierra-asia.com

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Sierra Website

www.sierrainstruments.com

Returning Equipment to the Factory

Factory Calibration—All Models

Sierra Instruments maintains a fully-equipped calibration laboratory. All measuring and

test equipment used in the calibration of Sierra transducers are traceable to NIST

Standards. Sierra is ISO-9001 registered and conforms (but is not certified) to the

requirements of ISO 17025.

Instructions for Returning Your Instrument for Service

The following information will help you return your instrument to Sierra Instruments'

Factory Service Center and will ensure that your order is processed promptly. Prices may

vary depending on the flow range, type of gas and operating pressure of your unit. To

request a rough estimate of the pricing, contact your local Sierra Instruments distributor or

contact one of our offices directly. A detailed quote will be provided following a full

evaluation of your instrument.

Please follow these easy steps to return your instrument for factory service:

Obtain a Return Materials Authorization (RMA) number from the Sierra Instruments

website at http://www.sierrainstruments.com/rma/login.php

If you require service beyond calibration, but do not know which service(s) will be

required, describe the symptoms as accurately as possible on the RMA form.

Pack your instrument carefully. Use the original packaging and foam or bubble wrap

(packing peanuts NOT recommended) and include a copy of the RMA form (complete

with Sierra supplied RMA number) with the unit(s).

Ship the unit(s) to the following address:

Sierra Instruments, Inc.

Attention: Factory Service Center

5 Harris Court, Building L

Monterey, CA 93940 USA

RE: RMA# (your number)

Sierra Instruments Instruction Manual SmartTrak® 100 Series

IMPORTANT SAFETY NOTE ABOUT PURGING

WARNING: When toxic or corrosive gases are used, purge unit

thoroughly with inert dry gas before disconnecting from the gas line

to prevent personnel from being injured when coming in contact with

the instrument.

WARNING: If an instrument used with a toxic or corrosive gas is

returned to the factory, a Material Safety Data Sheet (MSDS) must be

enclosed & attached to the outside of the box to alert Sierra

personnel of the potential hazard. Also, make sure the inlet & outlet

are solidly plugged off.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix A: C100/M100 SmartTrak Product Specifications,

Dimensions and Mounting

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix B: C101/M101 MicroTrak™ Product Specifications

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix C: C140M Ultra-Low ΔP Product Specifications, Dimensions and

Mounting

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix D: 100HP SmartTrak Product Specifications, Dimensions and

Mounting

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Sierra Instruments Instruction Manual SmartTrak

100 Series

Appendix E: Safety Guide for the 100HP

This Safety Guide is applicable for SmartTrak

100HP Ultra-High Pressure Mass Flow Meters

and Controllers.

Ultra-High Pressure Safety

Operating equipment under very high pressures does have safety risks of which you should be aware. This

guide is intended to educate the end-user in general terms of the risks of high pressure applications and is not

a complete registry of all high pressure do’s and don’ts. It is recommended that end-users educate

themselves on the specifics of their application and read any information their employer provides on the

subject.

Please read this Safety Guide in its entirety, the Quick Install Guide, and refer to the SmartTrak 100 Series

Instruction Manual, Chapter 2 for complete installation and operation instructions.

Ultra-High Pressure Specifications

The 100HP mass flow controller or meter can be used for a variety of flow rates, pressure drops, inlet

pressures, and gas types. However, each unit must be tuned specifically for each of these different

applications. The 100HP is rated to 5000 psig (345 barg) operating pressure, 7500 psig (517.1 barg) burst

pressure (unless otherwise listed on the enclosure data label). You must know the capacity of each specific

model, as it will vary for specific gases and applications.

Warning!

The working pressure is stated on the flow meter and controller label. Check label and

process pressure before installing in the line. If the pressure values listed do not match

that of your application, the instrument should not be used. Consult the factory for the

next steps.

Specified leak rate maximum: As little as 4 sccm at 5000 psid (345 bard) with a maximum of 5% of full

scale flow. Sierra recommends the use of a positive shut-off valve in series with the 100HP. Make sure the

Cv of the shut-off valve is sufficiently large so as to not cause a choked flow condition at rates less than the

full scale of the 100HP.

Gas Cylinder Pressure Specifications

No mass flow meter or controller is universally functional for every application and this is particularly true

when dealing with pressures above 1500 psig (103 barg). The 100HP is designed to be used at or below

5000 psig (345 barg).

Thus, the 100HP is fully capable of controlling GSA standard, lower-pressure gas cylinders. However, some

gas cylinders can reach pressures exceeding 6000 psig (413.7 barg) and therefore are not incompatible with

the 100HP. While the 100HP is designed for use with most gas cylinders, never use the 100HP to control

pressures exceeding 5000 psig (354 barg).

It’s important to note that gas properties are pressure-dependent. All pressure ratings are based on

compressed nitrogen, and many gases cannot be used with the 100HP at 5000 psig (345 barg). Oxygen is a

good example of this. Please consult the data label of your meter or controller for the most specific ratings,

or consult the factory.

Sierra Instruments Instruction Manual SmartTrak

100 Series

Pre-Installation Safety Procedures

1. Please read all instructions and cautionary markings on the instrument, as well as all appropriate

sections of the SmartTrak 100 Series Instruction Manual, Chapter 2 and Appendix D before using this

product.

2. General operation, display interface, PC software and electrical installation are same as a standard

SmartTrak 100 Series mass flow meter and controller.

3. Verify proper connection of all pressure sources and electrical signals prior to applying pressure or

power to the 100HP. See SmartTrak 100 Series Instruction Manual, Chapter 2 for complete installation

and operating instructions.

4. Pressurization Procedures

 Slowly apply pressure to the system. Open process valves slowly to avoid flow surges. When

applying pressure to the system, take care to avoid unnecessary pressure shocks in the system.

 Check for leaks around the meter inlet and outlet connections. If no leaks are present, bring the

system up to operating pressure.



Never test for leaks with a liquid leak detector

. If liquid seeps into the electronics or the sensor

compartment, the instrument may be damaged. Instead, use a pressure---decay test (if liquid MUST be

used at all, limit it to the fittings and keep it off the body of the instrument).

 Increase pressure gradually up to the level of actual operating conditions. Follow standard practice

for pressurized systems.

Warning!

Do not operate this instrument in excess of the specifications listed on the data

label, in this addendum, or in the SmartTrak 100 Series instructional manual.

Failure to heed this warning can result in equipment damage, failure, serious

injury or death.

5. Apply power only after reviewing wiring diagrams in the SmartTrak 100 Series Instruction

Manual, Chapter 2 .

Do not apply power to the output loop.

This is NOT a loop-powered device.

7. Apply gas flow only after checking plumbing connections for leaks.

8. Field service of this unit by the customer voids this unit’s warranty and is not advised. Send unit to

Sierra Instruments for service.

Warning!

If this equipment is not properly serviced, serious personal injury and/or

damage to the equipment can result from the potentially high operating

pressures. Please insure that the process line pressure is removed prior to

removal for

ervice.

Warning!

Always bleed your pressure line down to atmospheric pressure BEFORE installation.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Pressure Drop & Hyper-Cooling Cautions

For specific minimum required pressure drops for given flow rate, gas and known inlet pressure, consult the

factory. Flow of high pressure gases through a constriction causes cooling, because the gas robs latent

energy as it transitions energy from potential to kinetic. This is a function of compressibility, the heat

transfer coefficient, thermal expansion coefficient, and other gas properties. Simply put, as gas expands

rapidly, it cools down. This effect is known as hyper-cooling or more technically known as the Joule-

Thomson effect.

This effect is magnified by the flow rate vs. pressure, with the largest magnitude of hyper-cooling occurring

in cases of high flow rates with large pressure drops across the flow meter or controller control valve. For

best accuracy and performance, it is recommended that a form of thermal packing, gas temperature

conditioning, convective heating, or line heating be employed to mitigate this effect. Sierra is not

responsible for variation in calibration due to gas or system conditions.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix F: Gas Tables & K-factors (same for all 100 Series)

SmartTrak Pre-programmed Gases: Dial-A-Gas

The following gases have been programmed into the SmartTrak instrument in this order.

If you are using one of these gases, you may use the Dial-A-Gas feature in either the Pilot

Module or the Software Package and the instrument will adjust the outputs automatically.

1. Air

2. Argon

3. CO2

4. CO

5. Helium

6. Hydrogen

7. Methane

8. Nitrogen

9. Nitrous Oxide

10. Oxygen

K-Factor Calculations--

Using SmartTrak with Other Gases

If you will be using SmartTrak with a gas not on this list, you may use the tables below.

They provide K-factors and thermodynamic properties of gases commonly used with mass

flow meters and controllers. This is particularly useful if the actual gas is not a common

gas or if it is toxic, flammable, corrosive, etc. The tables can also be used to interpret the

reading of a flow meter or flow controller that has been calibrated with a gas other than

the actual gas.

Before applying the tables, set the instrument for Air. Then, the following fundamental

relationship may be used:

1/QN = K1/KN

Where:

Q = The volumetric flow rate of the gas referenced to normal

conditions of 0°C and 760 mm Hg (nccm or nlm),

K = The K-factor from the following tables, referenced to Air

( ) 1 = Refers to the “actual” gas, and

( ) N = Refers to the “reference” gas, Air in this case.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Gas Tables and K-factors

 If no O-ring material is specified then O-ring to be used is Viton. NEO is neoprene or equivalent. KR is DuPont Kalrez or

equivalent. Valve Seat applies only to controllers.

Actual Gas

Chemical

Symbol

K-factor

Relative

to Air

(Cal/g)

Density

(g/l) @

70°F

Density

(g/l) @

0°C

Elastomers*

O-ring Valve

Seat

Acetylene C2H2 .581 .4036 1.079 1.162

1.000 .240 1.200 1.293

Allene (Propadiene) C3H4 .431 .352 1.659 1.787 KR

Ammonia NH3 .732 .492 .706 .760 NEO KR/NEO

Argon A

1.398 .1244 1.655 1.782

Arsine AsH3 .671 .1167 3.229 3.478 KR

Boron Trichloride BCl3 .411 .1279 4.852 5.227 800 Series Recommended

Boron Trifluoride BF3 .511 .1778 2.808 3.025 KR

Boron Tribromide B

3 .381 .0647 10.378 11.18 KR

Bromine Br2 .812 .0539 6.619 7.130

Bromine Pentafluoride BrF5 .261 .1369 7.244 7.803 KR

Bromine Trifluoride BrF3 .381 .1161 5.670 6.108 KR

Bromotrifloromethane

(Freon-13 B1)

CBrF3 .371 .1113 6.168 6.644

1,3-Butadiene C4H6 .321 .3514 2.240 2.413

Butane C4H10 .261 .4007 2.407 2.593 Viton® Viton®

1-Butane C4H8 .301 .3648 2.324 2.503 Viton® Viton®

2-Butane C4H8 CIS .325 .336 2.324 2.503 Viton® Viton®

2-Butane C4H8 TRANS .292 .374 2.324 2.503 Viton® Viton®

Carbon Dioxide CO2 .737 .2016 1.835 1.964

Carbon Disulfide CS2 .601 .1428 3.153 3.397

Carbon Monoxide CO 1.002 .2488 1.160 1.250

Carbon Tetrachloride CCl4 .311 .1655 6.368 6.860 KR

Carbon Tetrafluoride

(Freon-14)

CF4 .421 .1654 3.645 3.926 KR

Carbonyl Fluoride COF2 .541 .1710 2.734 2.945

Carbonyl Sulfide COS .661 .1651 2.488 2.680

Chlorine CL2 .862 .114 2.936 3.163 800 Series Recommended

Chlorine Trifluoride CIF3 .401 .1650 3.829 4.125 KR

Chlorodifluoromethane

(Freon-22)

CHClF2 .461 .1544 3.581 3.858 KR

Chloroform CHCI3 .391 .1309 4.944 5.326 KR

Chloropentafluoroethane

(Freon-115)

C2CIF5 .241 .164 6.398 6.892 KR

Chlorotrifluromethane

(Freon-13)

CCIF3 .381 .153 4.326 4.660 KR

Cyanogen C2N2 .611 .2613 2.156 2.322 KR

Cyanogen Chloride CICN .611 .1739 2.545 2.742

Cychlopropane C3H5 .461 .3177 1.742 1.877 KR

Deuterium D2 1.002 .1722 1.670 1.799

Diborane B2H6 .441 .508 1.147 1.235 KR

Dibromodifluoromethane CB

2F2 .190 .15 8.691 9.362 KR

Dibromethane .471 .075 7.204 7.76 KR

Dichlorodifluoromethane

(Freon-12)

CCI2F2 .351 .1432 5.008 5.395 KR

Dichlorofluoromethane

(Freon-21)

CHCl2F .421 .140 4.597 4.952 KR

Sierra Instruments Instruction Manual SmartTrak® 100 Series

 If no O-ring material is specified then O-ring to be used is Viton. NEO is neoprene or equivalent. KR is DuPont Kalrez or

equivalent. Valve Seat applies only to controllers.

Actual Gas Chemical

Symbol

K-factor

Relative

Air

(Cal/g)

Density

(g/l) @

70°F

Density

(g/l) @

0°C

Elastomers*

O-ring Valve

Seat

Dichloromethylsilane (CH3) 2SiCl2 .251 .1882 5.345 5.758 KR

Dichlorosilane SiH2Cl2 .401 .150 4.183 4.506 KR

Dichlorotetrafluoroethane

(Freon-114)

C2Cl2F4 .220 .1604 7.079 7.626 KR

1,1-Difluoroethylene

(Freon-1132A)

C2H2F2 .185 .224 2.652 2.857 KR

Dimethylamine (CH3) 2NH .371 .366 1.867 2.011 KR

Dimethyl Ethe

(CH

3) 2O .391 .3414 1.908 2.055 KR

2,2-Dimethylpropane C3H12 .220 .3914 2.988 3.219 KR

Ethane C2H6 .501 .4097 1.246 1.342

Ethanol C2H6O .391 .3395 1.908 2.055 KR

EthylAcetylene C4H6 .321 .3513 2.240 2.413 KR

Ethyl Chloride C2H5CI .391 .244 2.673 2.879 KR

Ethylene C2H4 .601 ~.358 1.161 1.251

Ethylene Oxide C2H4O .521 .268 1.824 1.965 KR

Fluorine F2 .982 .1873 1.574 1.695 800 Series Recommended

Fluoroform (Freon-23) CHF3 .501 .176 2.903 3.127 KR

Freon-11 CCI3F .331 .1357 5.690 6.129 KR

Freon-12 CCI2F2 .351 .1432 5.008 5.395 KR

Freon-13 CCIF3 .381 .153 4.326 4.660 KR

Freon-13 B1 CFrF3 .371 .1113 6.168 6.644 KR

Freon-14 CF4 .421 .1654 3.645 3.926

Freon-21 CHCI2F .421 .140 4.597 4.952 KR

Freon-22 CHCIF2 .461 .1544 3.581 3.858 KR

Freon-113 CCI2FCCIF2 .200 .161 7.761 8.360 KR

Freon-114 C2Cl2F4 .220 .160 7.079 7.626 KR

Freon-115 C2ClF5 .241 .164 6398 6.892 KR

Freon-C318 C4F6 .170 .185 7.795 8.397 KR

Germane GeH4 .571 .1404 3.173 3.418

Germanium Tetrachloride GeCL4 .271 .1071 8.879 9.565 KR

Helium He 1.399 1.241 .164 .1786

Hexafluoroethane

(Freon-116)

C2F6 .241 .1834 5.716 6.157 KR

Hexane C6H14 .180 .3968 3.569 3.845 KR

Hydrogen H2 1.001 3.419 .083 .0899

Hydrogen Bromide HB

1.002 .0861 3.351 3.610 KR

Hydrogen Chloride HCl 1.002 .1912 1.510 1.627 800 Series Recommended

Hydrogen Cyanide HCN 1.072 .3171 1.120 1.206 KR

Hydrogen Fluoride HF 1.002 .3479 .829 .893 800 Series Recommended

Hydrogen Iodide HI 1.002 .0545 5.298 5.707 KR

Hydrogen Selenide H2Se .792 .1025 3.354 3.613 KR

Hydrogen Sulfide H2S .802 .2397 1.411 1.520 NEO KR

Iodine Pentafluoride IF5 .251 .1108 9.190 9.90 KR

Isobutane CH(CH3)3 .271 .3872 3.335 2.593 KR

Isobutylene C4H8 .291 .3701 2.324 2.503 KR

Krypton K

1.456 .0593 3.471 3.739

Methane CH4 .754 .5328 .665 .715

Methanol CH3OH .581 .3274 1.327 1.429

Methyl Acetylene C3H4 .431 .3547 1.659 1.787 KR

Methyl Bromide CH3Br .581 .1106 3.932 4.236

Methyl Chloride CH3Cl .193 2.253 2.092 KR

Methyl Fluoride CH3F .681 .3221 1.409 1.518 KR

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Actual Gas

Chemical

Symbol

K-factor

Relative

Air

(Cal/g)

Density

(g/l) @

70°F

Density

(g/l) @

0°C

Elastomers*

O-ring Valve

Seat

Methyl Mercaptan CH3SH .521 .2459 1.992 2.146 KR

Methyl Trichlorosilane (CH3) SiCl3 .251 .164 6.191 6.669 KR

Molybdenum Hexafluoride MoF6 .210 .1373 8.695 9.366 KR

Monoethylamine C2H5NH2 .351 .387 1.867 2.011 KR

Monomethylamine CH3NH2 .511 .4343 1.287 1.386 KR

Neon NE 1.463 .245 .836 .900

Nitric Oxide NO .992 .2328 1.243 1.339

Nitrogen N2 1.002 .2485 1.161 1.25

Nitrogen Dioxide NO2 .742 .1933 1.905 2.052 800 Series Recommended

Nitrogen Trifluoride NF3 .481 .1797 2.941 3.168 KR

Nitrosyl Chloride NOCl .611 .1632 2.711 2.920 KR

Nitrous Oxide N2O .716 .2088 1.836 1.964

Octafluorocyclobutane

(Freon-C318)

C4F8 .170 .185 7.795 8.397 KR

Oxygen Difluoride OF2 .631 .1917 2.234 2.406

Oxygen O2 .998 .2193 1.326 1.427

Ozone O3 .447 .3 1.990 2.144

Pentaborane B5H9 .261 .38 2.614 2.816 KR

Pentane C5HI2 .210 .398 2.988 3.219 KR

Perchloryl Fluoride CIO3F .391 .1514 4.243 4.571 KR

Perfluoropropane C3F8 .174 .197 7.787 8.388 KR

Phosgene COCl2 .441 .1394 4.101 4.418 KR

Phosphine PH3 .762 .2374 1.408 1.517 KR

Phosphorous Oxychloride POCl3 .361 .1324 6.352 6.843 KR

Phosphorous

Pentafluoride

PH5 .301 .1610 5.217 5.620 KR

Phosphorous Trichloride PCl5 .301 .1250 5.688 6.127 KR

Propane C3H8 .335 .3885 1.826 1.967

Propylene C3H6 .411 .3541 1.742 1.877

Silane SiH4 .601 .3189 1.330 1.433 KR

Silicon Tetrachloride SiCl4 .281 .1270 7.037 7.580 KR

Silicon Tetrafluoride SiF4 .351 .1691 4.310 4.643 KR

Sulfur Hexafluoride SF6 .261 .1592 6.049 6.516 KR

Sulfur Dioxide SO2 .691 .1488 2.653 2.858 KR NOTE: Limited

Warranty on SO2

Sulfuryl Fluoride SO2F2 .391 .1543 4.235 4.562 KR

Teos .090 800 Series Recommended

Tetrafluorahydrazine N2F4 .321 .182 4.307 4.64 KR

Trichlorofluormethane

(Freon-11)

CCl3F .331 .1357 5.690 6.129 KR

Trichlorisilane SiHCl3 .331 .1380 5.610 6.043 KR

1,1,2-Trichloro-1,2,2

Trifluorethane (Freon-113)

CCl2FCClF2 .200 .161 7.761 8.360 KR

Trisobutyl Aluminum (C4H9)Al .061 .508 8.214 8.848 KR

Titanium Tetrachloride TiCl4 .271 .120 7.858 8.465 KR

Trichloro Ethylene C2HCl3 .321 .163 5.523 5.95 KR

Trimethylamine (CH3)3N .281 .3710 2.450 2.639 KR

Tungsten Hexasfuoride WF6 .251 .0810 12.328 13.28 800 Series Recommended

Uranium Hexafluoride UF6 .200 .0888 14.574 15.70 KR

Vinyl Bromide CH2CHBr .461 .1241 4.430 4.772 KR

Vinyl Chloride CH2CHCl .481 .12054 2.588 2.788 KR

Xenon Xe 1.443 .0378 5.438 5.858

 If no O-ring material is specified then O-ring to be used is Viton. NEO is neoprene or equivalent. KR is DuPont

Kalrez or equivalent. Valve Seat applies only to controllers.

Sierra Instruments Instruction Manual SmartTrak® 100 Series

Appendix G: Flow Chart for Pilot Module User Interface (same for all

100 Series)

NOTE: If you press the escape key at any time, you will immediately return to the main

Mass Flow screen in the Upper Level.

Sierra Instruction Manual SmartTrak® Series 100

Appendix H: PIN Configuration (same for all 100 Series)

Figure2‐4:WiringDefinitionsforOptionalCommunicationCable



Pin # Wire Color in Cable Function

1. Brown Analo

Ground/Output

2. Re

0-5 VDC Output (or 0-10, 1-5 VDC)

3. Oran

e Analo

Ground/RS232

4. Pin

Valve Override Pur

5. Yellow Power Return (-)

6. Green Power Input (+)

7. Green/White RS-232 Transmit (out)

8. Blue Setpoint

9. Purple Not Use

10. Gra

Analo

Ground/Setpoint

11. White Reference Voltage

(5 VDC External Setpoint & Valve Pur

12. Blac

Valve Override Close

13. Brown/white RS-232 Receive (in)

14. Red/white 0/4-20 mA Output

15. Red/Blac

Not Use

Shield Wire

(no insulation)

Chassis (Earth) Ground

NOTE: Pins 1, 3, and 10 are connected together inside the instrument. Do not tie these

grounds together outside the instrument. Must have one connection per analog ground.

Recommended use listed.

NOTE: Unused cable wires should be isolated and insulated from one another or

damage could occur.

Sierra Instruction Manual SmartTrak® Series 100

Appendix I: SmartTrak Basic Commands (same for all 100

Series)

IMPORTANT CUSTOMER NOTICE

This document is for firmware version 2.044. Sierra Instruments, Inc. reserves the right to

change the command set without notification to the user. However, Sierra will also make every

effort to maintain backwards compatibility with previously published command sets for

SmartTrak®. There is no implied warranty or guarantee regarding the use of this commands set.

Sierra Instruments, Inc. is not liable for any damage or personal injury, whatsoever, resulting

from the use of this command set.

PROTOCOL

The SmartTrak communication is based on a standard RS232 port. All bytes are ASCII except

the two CRC bytes used for a redundancy check. Each command starts with four bytes of

command type, followed by a variable length value section. The two CRC bytes follow the

value string and a carriage return ends the string. Each command string will vary in length but,

can not exceed 26 bytes.

Command String = {4 command bytes + variable length value + 2 CRC bytes + carriage return}

< 26 bytes.

The RS232 port does not depend on hardware handshaking and uses only three wires on the port:

transmit, receive and ground. The port on the host needs to be configured to (9600,n,8,1) : 9600

baud, no parity, eight bit characters, one stop bit.

DESCRIPTION

Commands for the Meter. There are SmartTrak commands (version 1.xx), SmartTrak 2

commands (version 2.xx), and SmartTrak 100 commands (2.xx). The 2.xx commands

will support some of the 1.xx commands. If a 1.xx commands is not shown below, it is

not supported in the 2.xx commands. CMNDS is a class included in the class of Meter.

This page shows all types, fields, and values as derived from Meter. Version 2.xx

commands that start with a '?' are read commands and commands that start with a '!' are

write commands. This is list of the most commonly used commands, which are relative

safe.

Sierra Instruction Manual SmartTrak® Series 100

100

FLOW

DESCRIPTION

FLOW makes the streaming mode data = flow only. If meter is in streaming mode, this

data will stream until a FLOWwSETPOINT, FLOWwSETPOINTwDAC or

TOTALwDIFFwDAC is sent to the meter. If not in streaming mode then one flow will be

return with each FLOW command sent. ReadMeter, WriteMeter both will set flow as the

streaming data.

ASCII STRING COMMANDS

'?Flow + CRC + cr' Version 2.xx read command

'!Flow + value + CRC + cr' Version 2.xx write command

'?Flow + CRC + cr' Version 1.xx read command

Returns ASCII string 'Flow + value + CRC + cr'

Values are a string of digits and an optional decimal place: '10.00'

SETPOINT

DESCRIPTION

SETPOINT sets the control setpoint. The set point is store in the flash memory. This

command is not recommended for version 2.xx,. Use SETPOINT_FLASH.

ASCII STRING COMMANDS

'?Sinv + CRC + cr' Version 2.xx read command

'!Sinv + value + CRC + cr' Version 2.xx write command

'?Sinv + CRC + cr' Version 1.xx read command

'Sinv + value + CRC + cr' Version 1.xx write command

Returns ASCII string 'Sinv + valueSetpoint + CRC + cr'

Values are a string of digits and an optional decimal place: '10.00'

CRC=redundancy check bytes; cr=carrage return byte.

SETPOINT_FLASH

DESCRIPTION

SETPOINT_FLASH returns the current flash memory value setpoint with read

command. The write command sets the flash memory value and makes it the active

setpoint. This would be the setpoint after a power down.

ASCII String commands

'?Setf + CRC + cr' Version 2.xx read command

'!Setf + value + CRC + cr' Version 2.xx write command

Sierra Instruction Manual SmartTrak® Series 100

101

Returns ASCII string 'Setf + valueSetpoint + CRC + cr'

Values are a string of digits and an optional decimal place: '10.00'

CRC=redundancy check bytes; cr=carrage return byte.

SETPOINT_RAM

DESCRIPTION

SETPOINT_RAM returns the current ram memory value setpoint with read command.

The write command sets the ram memory value and makes it the active setpoint.

ASCII STRING COMMANDS

'?Setr + CRC + cr' Version 2.xx read command

'!Setr + value + CRC + cr' Version 2.xx write command

Read returns ASCII string 'Setr + valueSetpoint + CRC + cr'

Write returns ASCII string 'Sinv + valueSetpoint + CRC + cr'

Values are a string of digits and an optional decimal place: '10.00'

CRC=redundancy check bytes; cr=carrage return byte.

UNIT_INDEX

DESCRIPTION

UNIT_INDEX selects the units the meter displays. The index value is between 1 and 30

and is assigned as shown. scc/s = 1, scc/m = 2, scc/H = 3, Ncc/s = 4, Ncc/m = 5, Ncc/H =

6, SCF/s = 7, SCF/m = 8, SCF/H = 9, NM3/s = 10, NM3/m = 11, NM3/H = 12, SM3/s =

13, SM3/m = 14, SM3/H = 15, sl/s = 16, sl/m = 17, sl/H = 18, NL/s = 19, NL/m = 20,

NL/H = 21, g/s = 22, g/m = 23, g/H = 24, kg/s = 25, kg/m = 26, kg/H = 27, lb/s = 28,

lb/m = 29, lb/H = 30

ASCII STRING COMMANDS

'?Unti + CRC + cr' Version 2.xx read command

'!Unti + unitIndex + CRC + cr' Version 2.xx write command

'?Unti + CRC + cr' Version 1.xx read command

'Unti + unitIndex + CRC + cr' Version 1.xx write command

Returns ASCII string 'Unti + unitIndex + CRC + cr'

unitIndex is an integer string value of 1 to 30

CRC=redundancy check bytes; cr=carrage return byte.

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VALVE_INDEX

DESCRIPTION

VALVE_INDEX selects the state of the valve. Automatic = 1, Closed = 2, Purge = 3.

This is a write to flash memory command. For version 2.xx, this command is not

recommended. See VALVE_FLASH_INDEX and VALVE_RAM_INDEX.

ASCII STRING COMMANDS

'?Vlvi + CRC + cr' Version 2.xx read command

'!Vlvi + valveIndex + CRC + cr' Version 2.xx write command

'?Vlvi + CRC + cr' Version 1.xx read command

'Vlvi + valveIndex + CRC + cr' Version 1.xx write command

Returns ASCII string 'Vlvi + valveIndex + CRC + cr'

valveIndex is an integer string value of 1 to 3

CRC=redundancy check bytes; cr=carrage return byte.

GAS_INDEX

DESCRIPTION

GAS_INDEX selects the current gas.

ASCII STRING COMMANDS

'?Gasi + CRC + cr' Version 2.xx read command

'!Gasi + gasIndex + CRC + cr' Version 2.xx write command

'?Gasi + CRC + cr' Version 1.xx read command

'Gasi + gasIndex + CRC + cr' Version 1.xx write command

Returns ASCII string 'Gasi + gasIndex + CRC + cr'

gasIndex value is 1 through 10

CRC=redundancy check bytes; cr=carrage return byte.

STREAM

DESCRIPTION

Communications can be in one of three mode set by this STREAM command. In off

mode, the meter will respond when queried with a read command. In echo mode, the

meter will respond with either a read or a write command. In stream mode, the meter will

continuously send data back. If a read or write command needs to update more than one

value, all values with be sent back on write command.

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ASCII STRING COMMANDS

'?Strm + CRC + cr' Version 2.xx read command

'!Strm + streamString + CRC + cr' Version 2.xx write command

Returns ASCII string 'Strm + streamString + CRC + cr'

streamString = "On", "Off", "Echo"

CRC=redundancy check bytes; cr=carrage return byte.

VERSION_NUMBER

DESCRIPTION

VERSION_NUMBER returns the firmware version. This is useful when Ver. 1.xxx and

2.xxx are in the same system to determine which command to send.

ASCII STRING COMMANDS

'?Vern + CRC + cr' Version 2.xx read command

Returns ASCII string 'Vern + alphaNumericString + CRC + cr'

alphaNumericString is alpha numeric string

CRC=redundancy check bytes; cr=carrage return byte.

SERIAL_NUMBER

DESCRIPTION

SERIAL_NUMBER returns the serial number

ASCII STRING COMMANDS

'?Srnm + CRC + cr' Version 2.xx read command

Returns ASCII string 'Srnm + SERIAL_NUMBER + CRC + cr'

alphaNumericString is alpha numeric string

CRC=redundancy check bytes; cr=carrage return byte.



SYNC

DESCRIPTION

Sync returns the following events, VersionNumberEvent, SerialNumberEvent,

DataEvent, ManufactureNumberEvent, TypeEvent, PassWordEvent, SetpointEvent,

FullScaleEvent, GasNameEvent(10 times for all gas names), GasIndexEvent,

GasSpanEvent(current gas only), SetpointIndexEvent, OuputIndexEvent,

UnitIndexEvent, ValveFlashEvent, StreamEvent, SyncEvent

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ASCII STRING COMMANDS

'?Sync + CRC + cr' Version 2.xx read command

Returns ASCII string 'Sync + "" + CRC + cr'

SyncEvent returned last to indicate all events have been sent

CRC=redundancy check bytes; cr=carrage return byte.

ZERO

DESCRIPTION

ZERO sets the flow offset value to a zero flow reading. Warning: All flow must be shut

off, the unit needs to be at pressure with the gas being used.

ASCII STRING COMMANDS

'!Zero + "" + CRC + cr' Version 2.xx write command

CRC=redundancy check bytes; cr=carrage return byte.

RESET_ZERO

DESCRIPTION

Reset zero flow offset value to zero

ASCII STRING COMMANDS

'!Rezr + "" + CRC + cr' Version 2.xx write command

Returns ASCII string 'Rezr + "" + CRC + cr'

CRC=redundancy check bytes; cr=carrage return byte

CRC CALCULATIONS

Below is the routine used to calculate the CRC bytes in C#.

Comments are between the /* */.

private static uint CalcCRC(byte[] cmnd)

/* cmnd is a byte array containing the command ASCII string … cmnd[]=”Sinv2.000” */

/* An unsigned 32 bit integer is return to the calling program */

/* only the lower 16 bits contain the crc */

{

int i,j; /* interating indexes for the for loops */

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uint crc; /* crc variable that will be returned */

crc=0xffff; /* initialize crc to hex value 0xffff */

for (i=0; i<cmnd.Length; i++)

/* this for loop starts with ASCCII ‘S’ and loops through to the last ASCII ‘0’ */

{

crc=crc^((uint)(cmnd[i]*0x0100));

/* the ASCII value is times by 0x0100 first then XORED to the current crc value */

for(j=0; j<8; j++)

/* the crc is hashed 8 times with this for loop */

/* if the 15th bit is set (tested by ANDING with hex 0x8000 and testing for 0x8000 result)

then crc is shifted left one bit (same as times 2) XORED with hex 0x1021 and ANDED

to hex 0xffff to limit the crc to lower 16 bits. If the 15th bit is not set then the crc is shifted

left one bit and ANDED with hex 0xffff to limit the crc to lower 16 bits. */

{

if((crc&0x8000)==0x8000)

crc=((crc<<1)^0x1021)&0xffff;

else

crc=(crc<<1)&0xffff;

/* end of j loop */ }

/* end of i loop */ }

/* There are some crc values that are not allowed, 0x00 and 0x0d */

/* These are byte values so the high byte and the low byte of the crc must be checked and

incremented if the bytes are either 0x00 0r 0x0d. */

if((crc&0xff00)==0x0d00) crc +=0x0100;

if((crc&0x00ff)==0x000d) crc +=0x0001;

if((crc&0xff00)==0x0000) crc +=0x0100;

if((crc&0x00ff)==0x0000) crc +=0x0001;

return crc;

}

/* If the string Sinv2.000 is sent through this routine the crc = 0x8f55 */

/* The complete command “Sinv2.000” will look like this in hex

0x53 0x69 0x6E 0x76 0x32 0x2e 0x30 0x30 0x30 0x8f 0x55 0x0d */

Below is the c# routine with no comments.

private static uint CalcCRC(byte[] cmnd)

{

int i,j;

uint crc;

crc=0xffff;

for (i=0; i<cmnd.Length; i++)

{

crc=crc^((uint)(cmnd[i]*0x0100));

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for(j=0; j<8; j++)

{

if((crc&0x8000)==0x8000)

crc=((crc<<1)^0x1021)&0xffff;

else

crc=(crc<<1)&0xffff;

}

if((crc&0xff00)==0x0d00) crc +=0x0100;

if((crc&0x00ff)==0x000d) crc +=0x0001;

if((crc&0xff00)==0x0000) crc +=0x0100;

if((crc&0x00ff)==0x0000) crc +=0x0001;

return crc;

CRC ROUTINE IN MS VISUAL BASIC:

Public Sub SendPacket(packet As String)

Dim crcBytes() As Byte

Dim crcLen, vpacket

Dim crcWord As Long

Dim i, j

packet = Replace(packet, ",", ".") ' if commas are used as decimal place holder

crcLen = Len(packet) - 1 ' zero based counter

ReDim crcBytes(0 To crcLen)

For i = 0 To crcLen ' convert string to bytes

crcBytes(i) = Asc(Mid(packet, i + 1, 1)) ' get character

' calc crc

crcWord = (&H1FFFE) / 2 ' not -1

For j = 0 To crcLen

crcWord = crcWord Xor CLng(crcBytes(j)) * &H100

For i = 1 To 8

If (crcWord And &H8000) Then

crcWord = (crcWord * 2) Xor &H1021 ' prime number

Else

crcWord = crcWord * 2

End If

crcWord = (((crcWord * 2) And &H1FFFE)) / 2

Next i

Next j

If (crcWord And &HFF00) = &HD00 Then ' carriage char not allowed

crcWord = crcWord + &H100 ' make this byte &h0exx

End If

If (crcWord And &HFF00) = &H0 Then ' zero char is death

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crcWord = crcWord + &H100 ' make this byte &h01xx

End If

If (crcWord And &HFF) = &HD Then ' carriage char not allowed

crcWord = crcWord + 1 ' make this byte &hxx0e

End If

If (crcWord And &HFF) = &H0 Then ' zero char is death

crcWord = crcWord + 1 ' make this byte &hxx01

End If

ReDim Preserve crcBytes(0 To crcLen + 3) ' make room for crc and carriage return

crcBytes(crcLen + 1) = Int(crcWord / &H100) ' high byte

crcBytes(crcLen + 2) = (crcWord And &HFF) ' low byte

crcBytes(crcLen + 3) = 13 ' carriage return

vpacket = crcBytes

commQueue.Add vpacket

End Sub

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Appendix J: Warranty Policy

LIMITED WARRANTY POLICY- REGISTER ONLINE

All Sierra products are warranted to be free from defects in material and workmanship and will

be repaired or replaced at no charge to Buyer, provided return or rejection of product is made

within a reasonable period but no longer than one (1) year for calibration and non-calibration

defects, from date of delivery. To assure warranty service, customers must register their products

online on Sierra’s website. Online registration of all of your Sierra products is required for our

warranty process. Register now at www.sierrainstruments.com/register. Learn more about

Sierra’s warranty policy at www.sierrainstruments.com/warranty

100 Series Instruction Manual Rev S (7.24.18)

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