Emerson Millennium II Multi Channel Transmitter M22 FGD MAN M21 Transmitters

User Manual: Emerson Millennium II Multi-Channel Transmitter M22

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Page Count: 56

Section 1: Introduction
Section 2: Installation
Section 3: Operation
- 3.1 Transmitter and faceplate description
- 3.2 Transmitter power up
Section 4: Programming
Section 5: Calibration procedure
- 5.1 Full calibration procedure
- 5.2 Status conditions during calibration
Section 6: Monitoring and outputs
Section 7: Maintenance
Section 8: Electrostatic sensitive device
Section 9: Wire resistance table
Section 10: Specifications
Section 11: Certifications
Section 12: Ordering information
- 12.1 M21 single channel transmitter
- 12.2 M22 dual channel transmitter

Reference Manual

Part Number: MAN-0076, rev. 09

Release: June 2016

Millennium II Multi-Channel Transmitter

Important Instructions

Net Safety Monitoring, Inc (Net Safety) designs, manufactures and tests products to function within

specific conditions. Because these products are sophisticated technical instruments, it is important

that the owner and operation personnel must strictly adhere both to the information printed on the

product nameplate and to all instructions provided in this manual prior to installation, operation, and

maintenance.

Installing, operating or maintaining a Net Safety Product improperly could lead to serious injury or

death from explosion or exposure to dangerous substances. Comply with all information on the

product, in this manual, and in any local and national codes that apply to the product. Do not allow

untrained personnel to work with this product. Use Net Safety parts and work procedures specified in

this manual.

Notice

The contents of this publication are presented for informational purposes only, and while every effort

has been made to ensure their accuracy, they are not to be construed as warranties or guarantees,

expressed or implied, regarding the products or services described herein or their use or applicability.

All sales are governed by Net Safety’s terms and conditions, which are available upon request. We

reserve the right to modify or improve the designs or specifications of such products at any time.

Net Safety does not assume responsibility for the selection, use or maintenance of any product.

Responsibility for proper selection, use and maintenance of any Net Safety products remains solely with

the purchaser and end-user.

To the best of Net Safety’s knowledge the information herein is complete and accurate. Net Safety

makes no warranties, expressed or implied, including implied warranties of merchantability and fitness

for a particular purpose with respect to this manual and, in no event, shall Net Safety be liable for any

incidental, punitive, special or consequential damages including, but not limited to, loss of production,

loss of profits, loss of revenue or use and costs incurred including without limitation for capital, fuel and

power, and claims of third parties.

Product names used herein are for manufacturer or supplier identification only and may be

trademarks/registered trademarks of these companies.

Net Safety and the Net Safety logo are registered trademarks of Net Safety Monitoring, Inc. The

Emerson logo is a trademark and service mark of the Emerson Electric Company.

electronic, or mechanical without first receiving written permission of Rosemount, Shakopee, MN.

Warranty

Limited Warranty

. Subject to the limitations contained in Section 10 (Limitation of Remedy

and Liability) herein, Seller warrants that (a) the licensed firmware embodied in the Goods will

execute the programming instructions provided by Seller; (b) that the Goods manufactured by

Seller will be free from defects in materials or workmanship under normal use and care; and (c)

Services will be performed by trained personnel using proper equipment and instrumentation

for the particular Service provided. The foregoing warranties will apply until the expiration of

the applicable warranty period. Sensors and detectors are warranted against defective parts

and workmanship for 24 months from the date of purchase and other electronic assemblies for

36 months from the date of purchase. Products purchased by Seller from a third party for

resale to Buyer (

Resale Products

) shall carry only the warranty extended by the original

manufacturer. Buyer agrees that Seller has no liability for Resale Products beyond making a

reasonable commercial effort to arrange for procurement and shipping of the Resale Products.

If Buyer discovers any warranty defects and notifies Seller thereof in writing during the

applicable warranty period, Seller shall, at its option, (i) correct any errors that are found by

Seller in the firmware or Services; (ii) repair or replace FOB point of manufacture that portion of

the Goods found by Seller to be defective; or (iii) refund the purchase price of the defective

portion of the Goods/Services. All replacements or repairs necessitated by inadequate

maintenance; normal wear and usage; unsuitable power sources or environmental conditions;

accident; misuse; improper installation; modification; repair; use of unauthorized replacement

parts; storage or handling; or any other cause not the fault of Seller, are not covered by this

limited warranty and shall be replaced or repaired at Buyer’s sole expense and Seller shall not

be obligated to pay any costs or charges incurred by Buyer or any other party except as may be

agreed upon in writing in advance by Seller. All costs of dismantling, reinstallation, freight and

the time and expenses of Seller’s personnel and representatives for site travel and diagnosis

under this limited warranty clause shall be borne by Buyer unless accepted in writing by Seller.

Goods repaired and parts replaced by Seller during the warranty period shall be in warranty for

the remainder of the original warranty period or 90 days, whichever is longer. This limited

warranty is the only warranty made by Seller and can be amended only in a writing signed by an

authorized representative of Seller. The limited warranty herein ceases to be effective if Buyer

fails to operate and use the Goods sold hereunder in a safe and reasonable manner and in

accordance with any written instructions from the manufacturers. THE WARRANTIES AND

REMEDIES SET FORTH ABOVE ARE EXCLUSIVE. THERE ARE NO REPRESENTATIONS OR

WARRANTIES OF ANY KIND, EXPRESS OR IMPLIED, AS TO MERCHANTABILITY, FITNESS FOR

PARTICULAR PURPOSE OR ANY OTHER MATTER WITH RESPECT TO ANY OF THE GOODS OR

SERVICES.

Limitation of Remedy and Liability

. SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY

DELAY IN PERFORMANCE. THE REMEDIES OF BUYER SET FORTH IN THE AGREEMENT ARE

EXCLUSIVE. IN NO EVENT, REGARDLESS OF THE FORM OF THE CLAIM OR CAUSE OF ACTION

(WHETHER BASED IN CONTRACT, INFRINGEMENT, NEGLIGENCE, STRICT LIABILITY, OTHER

TORT OR OTHERWISE), SHALL SELLER’S LIABILITY TO BUYER AND/OR BUYER’S CUSTOMERS

EXCEED THE PRICE TO BUYER OF THE SPECIFIC GOODS MANUFACTURED OR SERVICES

PROVIDED BY SELLER GIVING RISE TO THE CLAIM OR CAUSE OF ACTION. BUYER AGREES THAT

IN NO EVENT SHALL SELLER’S LIABILITY TO BUYER AND/OR BUYER’S CUSTOMERS EXTEND TO

INCLUDE INCIDENTAL, CONSEQUENTIAL OR PUNITIVE DAMAGES. THE TERM

“CONSEQUENTIAL DAMAGES” SHALL INCLUDE, BUT NOT BE LIMITED TO, LOSS OF

ANTICIPATED PROFITS, REVENUE OR USE AND COSTS INCURRED INCLUDING WITHOUT

LIMITATION FOR CAPITAL, FUEL AND POWER, AND CLAIMS OF BUYER’S CUSTOMERS.

Reference Manual Table of Contents

MAN-0076 Revision 09 June 2016

Table of Contents I

Contents

Section 1 : Introduction .................................................................. 1

1.1 Models covered ............................................................................................................ 1

1.2 Service support ............................................................................................................. 1

1.3 Return of material......................................................................................................... 1

1.4 Product recycling/disposal ............................................................................................ 1

Section 2 : Installation .................................................................... 2

2.1 Unpacking and inspection ............................................................................................ 2

2.2 Dimensions .................................................................................................................. 2

2.3 Mounting ..................................................................................................................... 2

2.3.1 Transmitter orientation options ...................................................................... 2

2.3.2 Faceplate rotation .......................................................................................... 3

2.4 Wiring .......................................................................................................................... 4

2.4.1 General requirements ..................................................................................... 4

2.4.2 Terminal connection ....................................................................................... 5

2.4.3 Cable choice and guidelines ............................................................................ 5

2.4.4 Important wiring guidelines ............................................................................ 5

2.4.5 Internal ground screw ..................................................................................... 6

2.4.6 External ground .............................................................................................. 6

2.4.7 Seals ............................................................................................................... 6

2.4.8 Analog output, isolated supply, non-isolated supply and jumper configuration7

2.4.9 Remotely mounted sensors jumper configuration .......................................... 8

2.4.10 Sensor and transmitter terminals .................................................................... 8

2.4.11 Remote reset .................................................................................................. 9

2.5 Sensor separation/remote mounting of sensor ........................................................... 10

2.5.1 Wiring diagrams ........................................................................................... 11

2.6 Installation checklist ................................................................................................... 12

Section 3 : Operation .................................................................... 13

3.1 Transmitter and faceplate description ........................................................................ 13

3.1.1 Display.......................................................................................................... 13

3.1.2 Status LED .................................................................................................... 13

3.1.3 Current loop measurement (test jacks) ......................................................... 14

3.1.4 Menu buttons and access .............................................................................. 14

3.1.4.1 Intrusive access ............................................................................................. 14

3.1.4.2 Non-Intrusive Access/Magnetic Reed switch Access ...................................... 14

3.2 Transmitter power up ................................................................................................. 14

Section 4 : Programming .............................................................. 15

4.1 Menu options ............................................................................................................. 15

4.2 Navigating main menu ............................................................................................... 15

4.3 Calibrate sensor .......................................................................................................... 17

4.4 Enable/Disable channels ............................................................................................. 17

4.5 Set alarm level ............................................................................................................ 17

4.6 Set relay option .......................................................................................................... 18

4.7 Relay assignment ....................................................................................................... 18

4.8 Alarm mode setting .................................................................................................... 20

4.9 Select display language .............................................................................................. 20

4.10 Modbus Setup ............................................................................................................ 20

4.11 Setup current date ...................................................................................................... 21

4.12 Setup current time ..................................................................................................... 21

4.13 View events log .......................................................................................................... 21

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Table of Contents II

4.14 Manual reset ............................................................................................................... 22

4.15 Self-test relay.............................................................................................................. 22

4.16 Sensor upper limit (range) .......................................................................................... 23

4.17 Select gas type ........................................................................................................... 23

4.18 Calibration gas value................................................................................................... 24

4.19 Serial number and firmware version ............................................................................ 24

4.20 Exit ............................................................................................................................. 24

Section 5 : Calibration procedure .................................................. 25

5.1 Full calibration procedure ........................................................................................... 25

5.2 Status conditions during calibration............................................................................ 28

Section 6 : Monitoring and outputs ............................................... 29

6.1 Analog 4-20mA .......................................................................................................... 29

6.2 HART Communication (Optional) ............................................................................... 29

6.3 Relays (Optional) ........................................................................................................ 30

6.3.1 Alarm relay(s) ............................................................................................... 30

6.3.2 Fault relay ..................................................................................................... 30

6.4 RS-485 Modbus RTU (Optional) .................................................................................. 31

6.4.1 Modbus registers .......................................................................................... 32

6.5 Transmitter output operation ..................................................................................... 33

6.6 Fault monitoring ......................................................................................................... 33

6.7 Fault conditions .......................................................................................................... 34

6.7.1 Transmitter fault conditions .......................................................................... 34

6.7.2 Sensor fault conditions ................................................................................. 35

Section 7 : Maintenance ................................................................ 36

7.1 Periodic response check ............................................................................................. 36

7.2 Troubleshooting ......................................................................................................... 36

7.3 Storage ...................................................................................................................... 36

7.4 Spare parts and accessories ........................................................................................ 37

Section 8 : Electrostatic sensitive device ....................................... 39

Section 9 : Wire resistance table ................................................... 40

Section 10 : Specifications ............................................................ 41

10.1 Electrical ..................................................................................................................... 41

10.1.1 Operating voltage range ............................................................................... 41

10.1.2 Power consumption ...................................................................................... 41

10.1.3 EMC compliance ........................................................................................... 41

10.2 Environmental ............................................................................................................ 41

10.2.1 Operating temperature ................................................................................ 41

10.2.2 Relative humidity .......................................................................................... 41

10.2.3 Ingress protection......................................................................................... 41

10.3 Mechanical ................................................................................................................. 41

10.3.1 Enclosure material ........................................................................................ 41

10.3.2 Conduit opening ........................................................................................... 41

10.3.3 Weight ......................................................................................................... 42

10.4 Warranty .................................................................................................................... 42

Section 11 : Certifications ............................................................. 43

11.1 North American .......................................................................................................... 43

11.2 IECEx .......................................................................................................................... 43

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Table of Contents III

11.3 FC Models ................................................................................................................... 43

11.3.1 North American ............................................................................................ 43

11.3.2 IECEx (aluminum) ......................................................................................... 43

11.3.3 IECEx (stainless) ............................................................................................ 43

Section 12 : Ordering information ................................................ 44

12.1 M21 single channel transmitter .................................................................................. 44

12.2 M22 dual channel transmitter ..................................................................................... 45

Reference Manual Introduction

MAN-0076, Revision 09 June 2016

Introduction 1

Section 1: Introduction

1.1 Models covered

A Millennium II gas detection system is composed of a field mounted transmitter and Millennium II

series sensors which may be integrally mounted to the transmitter or remotely mounted.

The transmitter is certified for use in hazardous locations and is available as a single or dual sensor

system. All operator controls including configuration and calibration can be accessed without opening

the enclosure by using other communication devices and the attached magnet to actuate magnetic

Reed switches. Available outputs are: conventional 4 to 20 mA analog, Analog/HART,

electromechanical relays, or Modbus RTU digital.

1.2 Service support

Technical support for this product can be provided by contacting your local Emerson Process

Management representative or by contacting the Technical Support department at +1 866 347 3427

(toll free) or Safety.CSC@Emerson.com.

1.3 Return of material

To expedite the return of this product, proper communication between the customer and the factory is

important. Before returning a product, call +1 866 347 3427 (toll free) or e-mail

Safety.CSC@Emerson.com for a Return Material Authorization (RMA) number.

On the return of the equipment, include the following information:

1. RMA number provided to you by Rosemount

2. Company name and contact information

3. Ship all equipment, prepaid to:

Rosemount

6021 Innovation Boulevard

Shakopee, MN 55379

4. Mark all packages with the

RMA number

and type of return (e.g. return for evaluation

)

Pack items to protect them from damage and use anti-static bags or aluminum-backed cardboard as

protection from electrostatic damage.

All equipment must be shipped prepaid. Collect shipments will not be accepted.

1.4 Product recycling/disposal

Recycling of equipment and packaging should be taken into consideration and disposed of in

accordance with local and national legislations/regulations.

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Section 2: Installation

2.1 Unpacking and inspection

Carefully remove all of the components from the packaging and verify them against the enclosed

packing list. Inspect all components for any obvious damage such as broken or loose parts. If you find

any components missing or damaged, notify your local Net Safety representative or the factory

immediately.

2.2 Dimensions

The Millennium II transmitter enclosure is available in aluminum (A359) and stainless steel (SS316).

Dimensions are provided in inches and [millimeters].

Figure 2-1 - Dimensions

*M20, 1/2” NPT, and 1/2” BSP threads also available

2.3 Mounting

Ensure transmitter and sensor are securely mounted as per local regulations. The transmitter has

mounting holes to allow mounting to a wall or pole as desired. Mounting kit hardware is required when

mounting the transmitter a pole. Contact your local Net Safety representative for detailed information

on the pole mounting kits. The transmitter should be mounted at eye-level and be easily accessible for

monitoring and maintenance purposes.

2.3.1 Transmitter orientation options

Depending on the installation and mounting requirements, the transmitter enclosure (housing) may be

mounted in different orientations as seen in Figure 2-2. To accommodate the different mounting

orientations, the electronics module can be rotated inside the transmitter enclosure.

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Installation 3

Ensure the orientation allows proper wiring and adequate wire length inside the transmitter enclosure.

When determining suitable enclosure

orientation for specific applications, installers should observe all

local regulations and guidelines for mounting enclosures.

Figure 2-2 Different enclosure orientations

2.3.2 Faceplate rotation

Before wiring or rotating electronics, ensure that the power to transmitter is switched off. Do not open

the transmitter enclosure in a classified area.

Avoid touching electronic components, as they are susceptible to electrostatic discharge (ESD). Refer

to Section 8 for more information.

When the transmitter enclosure is mounted in different orientations (B, C, and D) as outlined in Figure

2-2, the electronics module will need to be rotated to ensure the display can be easily read. The

electronics module consists of the relay board, faceplate (Display/CPU assembly), and main terminal

board. To rotate the electronics module, follow these instructions:

1. Turn off power to transmitter and ensure area is de-classified

2. Remove the enclosure cover

3. Unscrew both the locking knobs and free from two metal standoffs

4. Lift transmitter faceplate from enclosure

5. Disconnect existing wiring

6. Unscrew the two metal standoffs using a ¼”hex tool

7. Carefully remove the electronics module

8. Rotate the electronics module to desired position

9. Align metal standoffs with the mounting holes of the electronics module and enclosure base

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10. Insert metal standoffs in the appropriate mounting holes

11. Tighten metal standoffs with ¼” hex tool to secure electronics module

12. Reconnect wiring

13. Replace faceplate, then fit and hand tighten locking knobs to metal standoffs by turning

clockwise

14. Replace enclosure cover.

Figure 2-3 Rotating electronics module

2.4 Wiring

2.4.1 General requirements

Failure to follow these installation guidelines could result in death or serious injury. Ensure that only

qualified personnel perform the installation.

Electrical shock could cause death or serious injury. Use extreme caution when making contact with

the leads and terminals.

Do not open the transmitter, sensor, or junction box enclosure when in a classified area or when an

explosive atmosphere may be present unless the power to the transmitter has been removed.

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Installation 5

Wiring codes and regulations may vary. Wiring must comply with all applicable regulations relating to

the installation of electrical equipment in a hazardous area and

is the responsibility of the installer. If in

doubt, consult a qualified official before wiring the system.

When separating the sensor from the transmitter, the use of shielded cable is highly recommended

meet electromagnetic compatibility (EMC) requi

rements and

to protect against interference caused by

extraneous electrical or electromagnetic noise

. In applications where the wiring is installed in conduit,

the conduit must not be used for wiring to other equipment.

If the 4-20 mA signal is not used, connect a jumper between the 4 – 20 mA terminal and the common

terminal to allow analog current levels to be monitored at the test jacks on the faceplate.

In applications where wiring is installed in conduit, conduit must not be used for wiring to any other

electrical equipment.

For effective communication, Net Safety limits sensor separation to 2000 feet (600 meters) using 16

AWG wires.

Modbus RS-485 connection 2-wire mode, multipoint serial line available. Up to 247 addresses allowed.

When developing a RS-485 chain of devices, the last device in the chain requires an end of line

termination resistor (120 Ohms).

2.4.2 Terminal connection

When connecting cable wires, use a small screwdriver to gently press down and hold the spring

connector open. Insert the appropriate wire into the open connector hole, releasing the screwdriver to

secure the wire as shown in Figure 2-4.

The connector will accommodate wire sizes between 14 and 20 AWG.

Figure 2-4 Terminal connection

2.4.3 Cable choice and guidelines

Radio frequency interference (RFI) can be caused by nearby electrical devices (e.g. transformers or high

voltage equipment) as well as handheld communication devices/radios, which when activated, may

impede the proper functioning of the transmitter and sensor. Selecting the right instrumentation cable

and making proper grounding connections within the junction box will reduce or eliminate

interference. Visible symptoms of RFI include inconsistent, incorrect, and erratic LEL and ppm readings.

2.4.4 Important wiring guidelines

Gas detection instruments are an important part of a safety alarm and shutdown system. The system is

composed of:

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• Detection instruments

• Customer connected equipment

• Wiring

Net Safety designs and manufactures its detection equipment under rigid quality control management

systems and makes every effort to design for the harshest of industrial environments. The other

components of the system – the customer-connected equipment and wiring – are also important

contributors to the overall quality and performance of the safety system.

It is important to implement wiring that ensures the reliability and integrity of the safety system. Field

wiring practices and the choice of cable type specified vary from project to project. Poor practices and

choices are often found to be the source of unwanted system disruptions. RFI and electromagnetic

interference (EMI) are usually very powerful disruptive forces in industrial facilities and these forces act

upon the system through the wiring.

The cable used should be a very high quality instrument grade, certified for the application conditions,

consisting of a rugged protective outer jacket, an overall electrical shield of fine braided copper or

metallic foil, and internal pairs or triads of foil shielded copper wire of suitable gauge for the power

conducted over the specified length.

The shields must be electrically continuous from the instrument junction box through other junction

boxes and finally to the connected equipment. The shield must be connected to a suitable ground sink

as specified in the instrument manual in order to protect the system from electrical disturbances.

In general, communication cables and power cables should not run in parallel for any significant length,

and should not be carried in the same cable tray. Through inductance, high currents in power cables

can induce significant ‘noise’ in communication cables running parallel alongside power cables.

2.4.5 Internal ground screw

To access enclosure grounding screw, remove the electronics module by following steps 1 through 7 in

Section 2.3.2.

2.4.6 External ground

In order to ensure proper operation of the sensor, an external earth ground is recommended. Net

Safety recommends that the external ground be connected to the grounding point on the enclosure.

2.4.7 Seals

The use of seals is recommended to further protect the system against water ingression, and

equipment should be installed according to applicable local electrical codes. Seals are especially

recommended for installations that use high-pressure or steam cleaning devices in proximity to the

transmitter.

• Waterproof and explosionproof conduit seals are recommended to prevent water accumulation

within the enclosure

• Seals should be located as close to the device as possible and not more than18 inches (46 cm) away

• Explosionproof installations may require an additional seal where conduit enters a non-hazardous

area; ensure conformity with local wiring codes

• When pouring a seal, use a fiber dam to ensure proper formation of the seal. Seals should never be

poured at temperatures below freezing

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Installation 7

• The jacket and shielding of the cable should be stripped back to permit the seal to form around the

individual wires. This will prevent air particles and water leakage through the inside of the shield

and into the enclosure

• It is recommended that explosionproof drains and conduit breathers be used. In some applications,

changes in temperature and barometric pressure can cause breathing which allows moist air to

enter and circulate inside the conduit. Joints in the conduit system are seldom tight enough to

prevent this breathing

2.4.8 Analog output, isolated supply, non-isolated supply and jumper

configuration

The analog output may be powered from the main instrument power supply or a separate,

independent power supply in which case an isolated wiring configuration is necessary.

To set a Non-isolated or Isolated current output, simply move the Jumpers/shorting jacks (JP3 and JP4)

to either the non-isolated or isolated current position. For non-isolated current output, ensure pins 3 &

2 at JP3 & JP4 location on the main terminal board are jumped (shorted). Factory standard models ship

with jumpers at JP3 & JP4 in the non-isolated current output position.

For Isolated current output, pins 1 & 2 at JP3 & JP4 should be jumped (shorted). Note that JP3 is for

configuring channel 1 and JP4 is for configuring channel 2. Jumpers and pins are located next to the

power and 4-20 output terminals on the main terminal board. See Figure 2-5 for reference.

Figure 2-5 Non-isolated and isolated current jumpers

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Always ensure that JP3 and JP4 jumpers are in the correct position

depending on the current output

configuration chosen

2.4.9 Remotely mounted sensors jumper configuration

Sensor separation from the transmitter may extend up to 2000 feet (600 meters) in which case a

junction box is required.

When mounting sensor remotely (separating sensor from transmitter), Jumpers JP1 and JP2 should be

installed over the pins. Jumpers and pins are located on the main terminal board near the sensor

terminals. JP1 is for channel 1 and JP2 is for channel 2. Refer to Figure 2-6.

Figure 2-6 Separation jumper positions

When separating sensor and transmitter,

install JP1 and JP2 over pins.

2.4.10 Sensor and transmitter terminals

Before wiring, ensure power to the unit is switched off. Connect the sensor wires to the sensor

terminals of the transmitter and connect the transmitter’s power and output terminals to the wiring

leading to the power source/panel. Refer to the configuration tables below for sensor as well as

transmitter power and output terminal designations.

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Installation 9

Sensor Terminals

Transmitter power terminals

Sensor wires

Transmitter sensor board terminal

designation

Transmitter terminal

designation

Function

White

+Vdc (from transmitter)

RST

Remote Reset

Red

SigA

+Vdc (10.5-32Vdc)

Power (+)

Blue

SigB

COM

Power (-)

Black

Com

4-20 (CH1)

Channel #1 current loop output

Green

Earth ground

ISO (CH1)

+Vdc isolated 4-20mA power,

channel #1

4-20 (CH2)

Current loop output channel #2

ISO (CH2)

+Vdc isolated 4-20mA power,

channel #2

Figure 2-7 Sensor wiring and terminal connections

2.4.11 Remote reset

If the alarm relays are configured for latching operation it may be desirable to reset latched alarms from

a remote location. In this case a normally open, momentary pushbutton switch may be connected

across terminals RST and COM.

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Figure 2-8 Remote reset wiring

2.5 Sensor separation/remote mounting of sensor

When it is necessary to mount the sensor remotely (separated from transmitter), by way of junction

box and conduit, it is important that the installer follow the necessary requirements and guidelines

relating to sensor separation and cable selection. See Figure 2-9 for typical remote mounting of sensor.

Also refer to 2.4 for information on wiring guidelines.

When sensors are being mounted remotely, consult the multi-purpose junction box manual

(MAN-0081) for wiring instructions. Always ensure that the transmitter is supplying 10.5 - 32 VDC

across the sensor power terminals (VDC + and COM) of Net Safety junction box (JB-MPD-A/S).

The maximum distance between the sensor and transmitter is limited by the resistance of the

connecting wiring, which is a function of the gauge of the wire being used. For effective

communication, Net Safety limits the separation distance between sensor and transmitter to 2000 feet

(600 meters) using 16 AWG wire. See Section 9 for information on typical wire gauge and resistance.

Figure 2-9 Sensor separation/remote mounting of sensor

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2.5.1 Wiring diagrams

Wiring drawings show general ways in wiring the system for analog signal output. Consult qualified

personnel on specific wiring requirements.

Figure 2-10 Non-isolated terminal connection

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Figure 2-11 Isolated terminal connection

2.6 Installation checklist

Review the following checklist prior to turning the power on to the transmitter after installation has

been completed:

□ Ensure that the transmitter and sensor are properly and firmly mounted.

□ Ensure that stopping plugs are securely tightened on any unused conduit entries.

□ Ensure that the transmitter and sensor are not obstructed; transmitter and sensor are accessible

and target gas is not inhibited from reaching the sensor.

□ Ensure adherence to applicable local guidelines and requirements on wiring and sealing of

equipment in hazardous and non-hazardous areas.

□ Ensure that proper shielding and grounding practices are adhered to and local codes are being

followed.

□ Check system operational voltage and conditions; ensuring that they are within the applicable

specifications of the transmitter and sensor.

□ Verify wiring at all termination and junction points (transmitter, junction box, and power supply).

□ Ensure that the transmitter housing cover and sensor cap are secured tightly.

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Operation 13

Section 3: Operation

3.1 Transmitter and faceplate description

Figure 3-1 Faceplate description

3.1.1 Display

The Millennium II is equipped with an Organic LED (OLED) display. It allows the user to see the

concentration of gas present for each individual channel and the various options offered. The display

has a wide temperature rating and will operate well in lowly lit conditions. In order to extend the life of

the display, a screen saver is enabled if the menu is not in use. To exit the screen saver mode, move the

magnet close to any of the three Reed switch locations (8 o’clock, 6 o’clock or 4 o’clock position).

3.1.2 Status LED

The Status LED can be solid red or green, or flashing red or green to indicate various states of the

transmitter and sensor.

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3.1.3 Current loop measurement (test jacks)

Do not open the transmitter, sensor, or junction box enclosure when in a classified area or when an

explosive atmosphere may be present unless the power to the transmitter has been removed.

For convenience, a pair of test jacks for each analog output is provided on the front face of the display

module. Attach ammeter probes to these jacks to check loop current without opening the circuit to

insert the meter.

3.1.4 Menu buttons and access

The main menu can be accessed in two ways: Intrusive (opening the enclosure and pressing menu

buttons) and non-intrusive (keeping the enclosure closed and using the magnet and reed switches).

3.1.4.1 Intrusive access

The menu buttons provide access to the Millennium II’s Main Menu options allowing the user to review

and configure existing options under sub menus and perform calibration. There are three visible main

menu buttons that are located directly under the display screen. They are designated ‘1’, ‘2’ and ‘3’.

3.1.4.2 Non-Intrusive Access/Magnetic Reed switch Access

Accessing the main menu and making a selection can also be done via an attached magnet and Reed

switches.

The Reed switches are located in the 8 o’ clock, 6 o’ clock and 4 o’ clock positions on the face plate and

indicated by horse shoe shape print magnets. To select a Reed switch, place and hold the magnet close

to the transmitter enclosure at 8, 6 or 4 o’clock position.

Menu buttons and reed switches provide the same functions. The term ‘switch’ is used throughout to

represent menu buttons and reed sw

itches.

3.2 Transmitter power up

After power is applied to the transmitter, a warm-up routine will begin, the duration of which depends

on the sensor type. The display will indicate the sensor warming up and the Status LED will flash slow

red and the current output will be 3.0 mA. After the warm-up period, the transmitter will enter normal

operation and the screen will display: “Channel 1 00 %LEL (or ppm), Channel 2 00 %LEL (or ppm).” For

dual channel models either channel can be disabled if not in use. If a channel is disabled, the screen will

display “Disabled” for that particular channel. The enabled channel analog output will be to 4.0 mA

during normal operation.

A slow flash is defined as the Status LED being ‘ON’ for 50 milliseconds and ‘OFF’ for 1 second, while a

fast flash is the LED being ‘ON’ for 250 milliseconds and ‘OFF’ for 250 milliseconds and a very fast flash

is the LED ‘ON’ for 50 milliseconds and ‘OFF’ for 50 milliseconds.

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Section 4: Programming

4.1 Menu options

The main menu provides access to various functional settings/options, as seen in the list below. Each

menu option has a submenu, where configuration is completed.

Calibrate Sensor

Enable/Disable Channels

Set Alarm Level

Set Relay Option (available on relay models)

Relay Assignment (available on relay models)

Alarm Mode setting

Select Display Language

Modbus Setup (available on Modbus models)

Setup Current Date

Setup Current Time

View Events Log

Manual Reset

Self-test Relay

Sensor Upper Limit (Range)

Select Gas Type

Cal Gas Value

Serial Number and Firmware version

Exit

4.2 Navigating main menu

Navigation through the menu options is done by activating menu button 1 or 2. The same function is

provided using the magnet to select Reed switch 1 (indicated by printed magnet in the 8’ o clock

position on the faceplate) or Reed switch 2 (indicated by printed magnet in the 6’ o clock position on

the faceplate).

1. Enter the main menu, either intrusive or non-intrusive (using the magnet), by

selecting/activating any button then select “yes” by using switch 1.

2. The message “Calibrate Sensor?” will be displayed.

3. Activate up-down buttons (switch 1) or (switch 2) to scroll/navigate through main menu options.

4. Select/activate the enter key (switch 3) to display sub menu.

5. To exit the main menu, continue using the navigation keys (up-down keys) and select “Exit” with

enter key at each menu stage (sub menu and main menu).

6. The main menu will be exited automatically if no option is selected; it takes fifty (50) seconds to

exit to each of the previous options or stage entered. If left untouched, this continues until the

main menu is fully exited.

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Figure 4-1 Programming flowchart

Enter Main Menu?

Calibrate Sensor?

YES

Enable/Disable

Channels?

Set Alarm Level?

Set Relay Option?

Relay Assignment?

Alarm Mode Setting

Select Display

Language?

Modbus Setup

Setup Current Date?

Setup Current Time?

View Events Log

Manual Reset?

Selftest Relay?

Sensor Upper Limit

(Range)

Select Gas Type

Cal Gas Value

Serial Number and

Firmware Version

Exit

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4.3 Calibrate sensor

This menu function allows the user to perform a calibration on the connected sensor. Refer to Section

5 for the calibration procedure.

4.4 Enable/Disable channels

This option allows the Millennium II Transmitter channels to be enabled or disabled. The default value is

channel 1 (CH1) enabled for single sensor models (model M21) while channel 2 (CH2) is permanently

disabled. Both channels are enabled for two sensor models (model M22).

1. Enter the main menu by selecting/activating any key to get the “enter main menu” prompt, then

activate switch 1 to select “yes”.

2. Select the down arrow key (switch 2) with the magnet, and scroll to “Enable/Disable Channel?”

3. Activate the enter key (switch 3) to enter the option. The sub menu options: ‘CH 1 Enabled’ will

be highlighted.

4. To disable a channel 1, Activate the enter key (switch 3). “CH1 disabled” will now be highlighted /

displayed.

5. To disable channel 2, highlight ‘CH2 Enabled’ use switch 2, then activate the enter key (switch 3)

to configure to ‘CH2 disabled’.

6. To exit the main menu, select “Exit” with enter key at each menu stage (sub menu and main

menu).

4.5 Set alarm level

This option enables the channel low and high alarm levels to be viewed and set-up. Alarm levels (points)

for each channel are user determined. Alarm Point 1 and Point 2 for channel 1 does not relate to Alarm

Point 1 and Point 2 for channel 2. The channel 2 selection is only available on M22 models.

1. Enter the main menu by selecting/activating any key to get the “enter main menu” prompt, then

activate switch 1 to select “yes”.

2. Activate the up key (switch 1) or the down key (switch 2) until “Set Alarm Level?” is highlighted /

displayed.

3. Activate switch 3 to enter the “Set Alarm Level” option. Sub menu options ‘Set CH1 Level’, ‘Set

CH2 Level’ and ‘Exit’ will be displayed. ‘Set CH1 Level’ being highlighted.

4. To view channel 1 alarm points, activate switch 3. ‘CH1 Point 1’ and ‘CH1 Point 2’ will be

displayed.

5. To view channel 2 alarm points use switch 2, at step 3, highlight ‘Set CH2 Level’, then activate

switch 3. ‘CH2 Point 1’ and ‘CH2 Point 2’ will be displayed.

6. To configure channel 1 alarm levels (Point 1 or Point 2), after step 4, use switch 3 to select CH 1

Point 1 (already highlighted) then proceed to step 8, or highlight CH1 Point 2 using switch 2 ,

then activate switch 3 and proceed to step 8.

7. To configure channel 2 alarm levels (Point 1 or Point 2), after step 5, use switch 3 to select CH2

Point 1 then proceed to step 8, or use switch 2 to highlight CH2 Point 2, then activate switch 3

to make a selection. Proceed to step 8.

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8. Use switch 1 to increase the existing values representing previously set alarm levels/points and

switch 2 to highlight and scroll across values.

9. After setting desired alarm points, select “Exit” at each menu stage (sub menu and main menu).

10. Apply test gas to confirm alarm level settings.

Alarm Point 1 and Alarm Point 2 are values completely under the control of the user. If the user

chooses, Alarm Point 1 can be assigned a value corresponding to a high alarm condition and Alarm

Point 2 assigned a value corresponding to a low alarm condition. To avoid confusion however, most

users may want to assign Alarm Point 1 as the low alarm condition and Alarm point 2 as the high alarm

condition.

4.6 Set relay option

This option allows the Alarm relay coils to be configured as energized or de-energized and latching or

non-latching.

• Fault relay: The Fault relay is Energized and Non-Latching. This relay is not configurable.

• Alarm relays 1, 2 and 3: Factory set as De-energized and Non-Latching. These relays are

configurable.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2) until, “Set Relay Options?” is displayed.

3. Activate the enter key (switch 3) to enter the option. The sub menu options are: ‘Fault relay’,

‘Alarm relay 1’, ‘Alarm relay 2’, ‘Alarm relay 3’.

4. Activate the down key (switch 2) or up key (switch 1) to highlight configurable Alarm relays

(‘Alarm relay 1’, ‘Alarm relay 2’, ‘Alarm relay 3’).

5. Activate the enter key (switch 3) to configure the desired Alarm relay.

6. ‘Norm. Energized’ or ‘Norm.De-Energized’ will be highlighted at the top of the display screen. To

change the Energized or De-Energized setting, activate the enter key (switch 3).

7. To change the Latching or Non-Latching setting, activate the down key (switch 2) to highlight

‘Latching’ or ‘Non- Latching’, then activate the enter key (switch 3).

8. Once the desired relay settings have been made, select “Exit” at each menu stage (sub menu and

main menu).

4.7 Relay assignment

This option allows the transmitter two (2) channels (with alarm levels/points) to be configured under

the three (3) Alarm relays. When configuring under sub menu Alarm relay 1, “RL1:CH1 (Point 1, Point

2, Disabled)” and “RL1: CH2 (Point 1, Point 2, Disabled)” is displayed. Under sub menu Alarm relay 2,

“RL2:CH1 (Point 1, Point 2, Disabled)” and “RL2:CH2 (Point 1, Point 2, Disabled)” is displayed, and

under sub menu Alarm relay 3, “RL3:CH1 (Point 1, Point 2, Disabled)” and “RL3:CH2 (Point 1, Point 2,

Disabled)”is displayed.

RL1, RL2 and RL3 represents Alarm relays 1, 2 and 3. CH1 and CH2 represent channel1 and channel 2.

Point 1 and Point 2 are Alarm level 1 and Alarm level 2. Alarm levels (points) are user determined and

are unique to the specific channel.

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Prior to assigning relays, configure the alarm levels (points). See Section ‘4.2.4 Viewing and setting

alarm levels (points)’, and then follow the steps and example below to configure the Alarm relays. Also

see Table 3, Example and Table 4.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2) until “Relay Assignment?” is displayed.

3. Activate the enter key (switch 3) to enter the option. The sub menu: ‘Alarm Relay 1’, ‘Alarm Relay

2’, ‘Alarm Relay 3’ as well as ‘Exit’ will be displayed.

4. Choose the Alarm relay (Alarm relay 1, Alarm relay 2, Alarm relay 3) for configuration, by using

the up- down arrow keys.

5. Activate the enter key (switch 3) to make the selection. The relay (RL) and channel (CH) with

alarm level setting will be highlighted. The alarm level settings available are: Point 1, Point 2, and

Disabled.

6. Under the specific relay with channel, activate the enter key (switch 3) to choose the appropriate

setting. See Table below.

Relays and assignment options

Channel and alarm

points(levels)

ALARM RELAY 1 (RL1) with

channel # and Alarm points

(levels)

ALARM RELAY 2 (RL2) with

channel # and Alarm points

(levels)

ALARM RELAY 3 (RL3) with

channel # and Alarm points

(levels)

CH1

POINT 1= Alarm level 1

POINT 2= Alarm level 2

RL1:CH1

Point 1/Point 2/Disabled

RL2:CH1

Point 1/Point 2/Disabled

RL3:CH1

Point 1/Point 2/Disabled

CH2

POINT 1= Alarm level 1

POINT 2= Alarm level 2

RL1:CH2

Point 1/ Point 2/Disabled

RL2:CH2

Point 1/ Point 2/Disabled

RL3:CH2

Point 1/Point 2/Disabled

7. Once the appropriate settings are chosen, use the up or down arrow key (switch 1) or (switch 2)

and switch 3 to exit.

Example: LEL combustible sensor connected to channel 1 and H2S sensor connected to channel 2.

1. Set Alarm Levels (points): Setup alarm levels for each channel, e.g. Channel 1 point 1 = 20% LEL,

Channel 1 point 2 = 40% LEL, Channel 2 point 1 = 10 ppm, and Channel 2 point 2 = 20 ppm. Refer

to Section ‘4.2.4: Viewing and setting alarm levels (points)’ when setting alarm levels.

2. Set Relay Options: Each alarm relay can be set up for energized or de-energized and latching or

non-latching. Configure alarm relays options as desired. See ‘4.2.5 Setting Relay options’.

3. Relay Assignment: There are (3) alarm relays and (2) channels. Assign alarm relays to channels as

desired, e.g.

o Alarm relay 1 assigned to Channel 1 Point 1 (20% LEL)

o Alarm relay 2 assigned to Channel 2 Point 1 (10 ppm)

o Alarm relay 3 assigned to Channel 1 Point 2 (40% LEL)

o Alarm relay 3 assigned to Channel 2 Point 2 (20 ppm)

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4.8 Alarm mode setting

Only used on Oxygen (ST341) sensors

This option is available for detecting oxygen levels. The user is allowed to set up two Alarm points/level

(normal oxygen level is 20.9 %) under three available Alarm Modes. These Alarm Modes are: Above-

Above, Below-Below and Below-Above. The Alarm Mode chosen by the user depends on the particular

application/operation. If surrounding air is to be used for calibration, ensure that no contaminants are

present. Refer to the Oxygen sensor manual for detailed information.

4.9 Select display language

This option allows the display language to be selected. The default language is English. There are also

options for Spanish, French, and Portuguese.

1. Enter the main menu by activating any key to get the “enter main menu” prompt then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2) until “Select Display Language?” is

displayed.

3. Activate the enter key (switch 3). The default language, ‘English’, will be displayed.

4. Locate other languages by activating the enter key (switch 3).

5. Once the desired language is displayed, select “Exit” at each menu stage (sub menu and main

menu).

4.10 Modbus Setup

This option enables the following Modbus parameters to be set:

• Addressing: From 001 (default) to 247.

• Baud Rate: 02400 bps, 04800 bps, 09600 bps (default), 19200 bps, and 57600 bps.

• Frame Format: EVEN Parity (default), ODD Parity, NO Parity.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Select the up arrow key (switch 1) or down arrow key (switch 2) until “Modbus Setup” option is

displayed.

3. Activate the enter key (switch 3) to display ‘slave address’ (default address: 001).

4. Use the up key (switch 1) to increase the address and the down key (switch 2) to decrease the

value. The value range is 001-247.

5. Activate the enter key (switch 3) when the desired value is displayed.

6. After setting the Slave Address, exit to this sub menu option using switch 3.

7. Activate the down key (switch 2) to highlight ‘baud rate’, then activate the enter key (switch 3)

to display the current baud rate.

8. Use the up key (switch 1) to increase the baud rate and the down key (switch 2) to decrease it.

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9. Activate the enter key (switch 3) when the desired value is displayed.

10. After setting the baud rate, exit this sub menu option using switch 3, and then activate the down

arrow key (switch 2) to highlight ‘Parity Bit’.

11. Activate switch 3, then activate the up key (switch 2), or the down key (switch 1) to choose a

value.

12. Activate the exit key (switch 3) when the desired value is displayed, then select “Exit” at each

menu stage (sub menu and main menu).

4.11 Setup current date

This option allows you to set the current date for event logging. The default date is set at the factory in

Mountain Time.

1. Enter the main menu by selecting/activating any key to get the “enter main menu” prompt, then

activate switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2) until “Setup Current Date?” option is

displayed.

3. Activate the enter key (switch 3) to display the sub menu option ‘year’, ‘month’, ‘day’.

4. Activate the up key (switch 1) to change the current year/month/day settings and switch 2 to

cycle across ‘year’, ‘month’, ‘day’ values and ‘OK’.

5. After desired setting are made, navigate to “OK?” and activate the enter key (switch 3) to

confirm. To exit main menu, select “Exit” at each menu stage (sub menu and main menu).

4.12 Setup current time

This option allows you to set the current time for event logging. The default time is in Mountain Time.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down (switch 2) until “Setup Current Time?” option is displayed.

3. Activate the enter key (switch 3) to display the sub menu: hour’, ‘minute’, ‘seconds’.

4. Activate the up arrow key (switch 1) to change the current hour/minute/second settings, then

use switch 2 to cycle across ‘hour’, ‘minute’, ‘seconds’ values and ‘OK’.

5. After desired settings are made, navigate to ‘OK’ and activate the enter key (switch 3) to confirm.

To exit main menu, select “Exit” at each menu stage (sub menu and main menu).

4.13 View events log

The Millennium II Transmitter has the ability to store up to 980 events. Events can be viewed by

navigating through this menu option. The most recent events are shown first.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Navigate through the main menu using switch1 or switch 2 until “View Event Log?” is displayed.

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3. Activate the enter key (switch 3) to display the sub menu. The most recent event will be

displayed.

4. Select the up arrow key (switch 1) and the down arrow key (switch 2) to toggle through all past

events.

5. After viewing, select “Exit” at each menu stage (sub menu and main menu).

The on-screen Events Format/host includes:

• Channel Number: CH1, CH2, or transmitter: ML2. Events that occurred under these formats will be

logged.

• Event Types: There are a total of 11 events that are stored and displayed. See table below for a list

of the events, and how they are displayed on the Millennium II screen.

• Date and Time: Each event is date and time stamped.

Event Types

Display on Screen

Events Format /host

Power up or Reset

Power UP / RST

ML2

Communication Fault

Communication Err

CH1 or CH2

High Level Alarm

High Alarm

CH1 or CH2

Low Level Alarm

Low Alarm

CH1 or CH2

Calibration Completed

Cal Complete

CH1 or CH2

Calibration Zero Failed

Cal Zero fail

CH1 or CH2

Calibration Span Fail

Cal Span Fail

CH1 or CH2

Calibration Aborted

Cal Abort

CH1 or CH2

Sensor Fail

CH1 or CH2

Channel Enabled

Enabled

CH1 or CH2

Channel Disabled

Disabled

CH1 or CH2

4.14 Manual reset

A Manual Reset is required after a calibration failure or to clear a latched Alarm relay. When a manual

reset is done, the transmitter will return to normal operation.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2) until “Manual Reset?” option is displayed.

3. Activate the enter key (switch 3) to display the sub menu: ‘Initiate Reset’.

4. Select “yes” using switch 1 to reset.

4.15 Self-test relay

When activating the self-test relay function, ensure all external equipment is disabled to prevent

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unwanted alarm activation. Enable external equipment once testing is completed.

The Self-test relay option continuously turns relays on and off to ensure that they are functioning

properly. The Fault Relay is tested first, automatically followed by tests on Relay 1, 2, and 3. After the

relays have been tested, “Relay Test Complete” will be displayed. See steps to initiate relay self-test

below.

Proper functioning electromechanical relays have a clicking sound during this test.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up arrow key (switch 1) or down arrow key (switch 2) until “Self-test Relay?” option

is displayed.

3. Activate the enter key (switch 3) to display the sub menu: ‘Self-Test Relay. Caution, will trip

alarm’.

4. Select “yes” using switch 1. ‘Ensure alarm response items are disconnected’ will be displayed.

5. Ensure all external alarm devices are de-activated, and then select “yes” using switch 1.

6. After test is successfully completed, select “Exit”.

4.16 Sensor upper limit (range)

This option is used to set the upper limit (range) of the gas being detected. The upper limit will vary

depending on the sensor used and may not be selectable for all sensors.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2), until “Sensor Upper Limit (Range)”option is

displayed.

3. Activate the enter key (switch 3) to display the sub menu: ‘CH1: range’, ‘CH2: range’.

4. Select the channel (sensor) to be configured and adjust the sensor’s range using the up-down

arrow keys (switch 1) or (switch 2). The specific sensor provides the upper limits/ranges.

If no selections appear when activating the up/down arrow keys at this stage, the specific sensor

only has one upper limit/range, which cannot be altered.

5. Activate the enter key (switch 3) when the desired upper limit/range is reached.

6. To exit, select “Exit” at each menu stage (sub menu and main menu).

4.17 Select gas type

“Select Gas Type” option allows the user to select a particular target gas and/or Correction (“K”) Factor

in the case of Catalytic Bead sensors (model SC310) or choose the type of LEL gas (gas curve) in the case

of IR (model SC311) sensors. See specific sensor manual in relation to this menu option.

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4.18 Calibration gas value

This option allows the user to select the calibration gas value in the transmitter main menu. Although it

is recommended that 50% span gas should be used for calibration, for some sensors, the transmitter

will allow tolerance/flexibility in the calibration gas available; 10% to 60% span gas allowed for some

sensor types. See specific sensor manual.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2), until “Cal. Gas value” option is displayed.

3. Activate the enter key (switch 3). Channel1 and channel 2 existing calibration gas values will be

displayed in three numeric groups: ‘hundreds’, ‘tens’, and ‘ones’. For example: 0 5 0 indicates a

calibration gas value of 50% span.

4. Highlight the required channel with calibration gas value using the navigation keys (switch1) or

(switch 2), then select using switch 3. Switch 1 is used to increase /change a value in each

numeric group, while switch 2 is used to cycle across the numeric groups.

5. To exit, select “Exit” at each menu stage (sub menu and main menu).

4.19 Serial number and firmware version

This option is used when the serial number or firmware version of the Millennium II Transmitter is

required.

1. Enter the main menu by activating any key to get the “enter main menu” prompt, then activate

switch 1 to select “yes”.

2. Activate the up key (switch 1) or down key (switch 2), until “Serial Number and Firmware

Version” option is displayed.

3. Activate the enter key (switch 3). The firmware version and serial number will be displayed.

4. To exit, select “Exit” at each menu stage (sub menu and main menu).

4.20 Exit

This option allows the user to exit the menu system and return to the normal operation mode.

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Section 5: Calibration procedure

5.1 Full calibration procedure

Prior to attempting calibration read and understand the calibration procedure below. Also see Figure

5-1 for additional reference.

The following calibration procedure should be followed to ensure an accurate correlation between the

output signal and the gas concentration. For accurate performance, the Millennium II is calibrated

using 50% span gas. The transmitter will however, allow some flexibility in the use of calibration gas

with some sensors; calibration gas outside of 50 % span (10% - 60% span gas) will be allowed on specific

sensor models (see specific sensor manual for details). The calibration gas value can be chosen by

selecting it under “cal. gas value” in the main menu. A full calibration will take approximately 5 minutes

to complete.

Air movement, drafts and wind can cause dilution of calibration gas flow which can cause an erroneous

calibration and inaccurate performance. To avoid this, use a Calibration Cup attached to the bottom of

the sensor. The cup doesn’t have to be removed for normal operation. When the cup is in place, inject

calibration gas at a rate of 0.5 – 1.0 liter per minute.

Ensure the transmitter is functioning properly as indicated by the status LED and current output.

1. Enter the main menu by selecting/activating any key to get the “enter main menu” prompt, then

activate switch 1 to select “yes”.

2. When “Calibrate Sensor?” is displayed, activate the enter key (switch 3).

3. When “Calibrate Sensor #1?” is highlighted, activate the enter key (switch 3) if this is the sensor

to be calibrated.

4. If sensor #2 is to be calibrated, select the down arrow key (switch 2) to scroll to “Calibrate Sensor

#2?”

5. Select the desired sensor to be calibrated (1 or 2) by activating the enter key (switch 3).

6. Select “YES” with switch 1 to confirm the selection, and then apply clean air (zero gas) from

canister when “Apply Clean Air” is displayed. Ensure no contaminant gases are around if

ambient air is being used.

7. Select “Z & Span” using switch 1 for normal (full) calibration. “Setting zero” will be displayed as

the sensor is being zeroed.

8. Apply 50% calibration gas (* or % cal. gas value chosen) when prompted.

9. The display will show “Spanning” with the gas value (%LEL or PPM depending on the sensor) as

the gas is detected.

10. Remove the calibration gas when “Remove Cal Gas” is displayed.

11. “Cal Complete” will be displayed when calibration is complete.

12. Apply zero gas (clean air) to purge system. This is particularly important when using long tubing.

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The “Zero” calibration option is selected if the sensor is only being zeroed (this not a complete

calibration)

It does not require the application of span gas, as only the sensor’s zero point is adjusted. Ensure that

contaminants are present, if the surrounding air is to be used for Zeroing. If Zero calibration is

needed, at step 7 above, select ‘Zero’ using switch 3).

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Figure 5-1 Calibration flowchart

Calibrate Sensor?

Enter Main Menu?

YES

Calibrate Sensor #1

Calibrate Sensor #2

Exit

Calibrate Sensor #1?

Apply Clean Air

Remove air canister (if

used) - Zero calibration

complete, full calibration

continue to next block

CH 1: Apply 50% span gas

CH 1 Spanning

LEL/ppm reading

Remove Calibration Gas

Calibration Complete

Note: Some sensor types can

be calibrated with 10% to

60% span calibration gas,

refer to the applicable sensor

manual

Span Failed

Perform a manual reset

and repeat calibration

procedure

Purge calibration lines

with clean air from

canister, then remove air

canister

YES

Z&SPAN Zero

Full

Calibration

Zero

Calibration

Zero

Successful?

Zero Failed

Perform a manual reset

and repeat calibration

procedure

Yes

Span

Successful

Yes

Note: Calibration process is

identical for Channel #2

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5.2 Status conditions during calibration

Condition

Current output

LED indication

Red

Green

Relay outputs

Fault

Alarm

Sensor is zeroing itself

3 mA

Off

Solid

Normal state

Sensor is waiting until it detects application

of calibration gas

3.3 mA

Very fast

Off

Normal state

Sensor waits until gas level stabilizes, then

begins spanning

3.3 mA

Very fast

Off

Normal state

Spanning is complete, user asked to remove

calibration gas

3.6 mA

Off

Solid

Normal state

Displayed for four (4) seconds once gas

concentration drops to 3% full-scale after

user asked to remove calibration gas

3.6 mA

Off

Solid

Normal state

Signal was too unstable to acquire an

accurate zero after ninety (90) seconds

3.0/3.3

Solid

Fault state

Normal state

Displayed for four (4) seconds if the

calibration gas was remove prematurely or if

a ninety (90) second time limit has elapsed

and the signal was too unstable to acquire

accurate data

3.0/3.3

Solid

Fault state

Normal state

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Monitoring and outputs 29

Section 6: Monitoring and outputs

6.1 Analog 4-20mA

A 4-20 mA current output is used to transmit the transmitter and sensor status and fault codes to other

devices. This output can be wired for isolated or non-isolated operation. A 4.0 mA output indicates

normal operation; the transmitter’s output current range is 4.0 - 20.0 mA. For a full list of output

current values and what they indicate, see 6.5.

The Millennium II transmitters offer a variable 4-20 mA analog output. This output will provide gas

concentration through the 4-20 mA range, where 4 mA equals zero gas concentration and 20 mA

equals the high range of the sensor (e.g. 100% LEL or 100 ppm). Other conditions such as faults and

calibration notifications (e.g. apply gas) are indicated in the 0-3.9 mA range. Faults are indicated at

either 0 mA or 2.5 mA.

To differentiate between conditions resulting in 2.5 mA, view the Event Log. See Event Log

option.

6.2 HART Communication (Optional)

The HART protocol is a powerful communication technology enabling users to exploit the full

functionality of the Millennium II Transmitter. The HART communication option is only available with

the single channel version of the Millennium II Transmitter. The Millennium II Transmitter is a generic

device that will work with other universal communication devices.

The HART Communicator may be connected to the single channel Analog/HART model Millennium II

Transmitter via the HART Port connector (HPT-001) which provides the necessary interface for

communication. The HART Port connector is fitted to one of the ¾” NPT conduit entries and its

communication wires fitted to the HART Pins located at J5 near the ribbon cable on the underside of the

display/CPU assembly. The HART Communicator probe wires (leads) are then connected to HART Port

connector contact points. HART Communication may also be done remotely using a designated Net

Safety Multipurpose Junction box (JB-MPH-A/S). See the HART Port connector manual (MAN-0083) for

more details. When remote HART Communication is being done, ensure the HART jumper is connected

across pins at J5 near ribbon cable on display/CPU assembly. By default the jumper is connected across

pins. The HART Communicator can be connected directly in the 4-20 mA signal wiring across a 250 -

600 Ohm resistor. Do not install resistor within transmitter. See Figure 6-1.

Monitoring and outputs Reference Manual

June 2016 MAN-0076, Revision 09

30 Monitoring and outputs

Figure 6-1 Analog/HART wiring

6.3 Relays (Optional)

Optional electromechanical relays have Form-C SPDT contacts rated 5 Amps at 30 VDC/ 250 VAC.

There are four physical relays; one Fault and three Alarm relays. These relays have Normally Open and

Normally Closed contacts at the output terminals.

6.3.1 Alarm relay(s)

The Millennium II transmitters can be ordered with three (3) programmable alarm relays. These relays

will change state from their non-alarm state to an alarm state when gas concentrations, as read by the

sensor, reach the programmed alarm points set in the transmitter.

The alarm relays can be programmed to change states on alarm point #1 or alarm point #2 for either

channel. They can also be programmed to be energized or de-energized under normal conditions, and

then either latching or non-latching.

6.3.2 Fault relay

Millennium II transmitters and sensors complete continual checks for situations that may prevent the

transmitter and sensor from providing an expected response to ambient conditions and records these

as a fault condition in the message log and the output(s) of the transmitter. When a system fault is

detected, the Red Status LED will flash fast (250 milliseconds on, 250 milliseconds off), the analog

output will output a 2.5 mA signal, and the fault relay will change states (de-energize to provide a fault

condition).

Reference Manual Monitoring and outputs

MAN-0076, Revision 09 June 2016

Monitoring and outputs 31

The fault relay is normally energized when no fault conditions are present and is set up for non-latching.

The operation of the fault relay is not configurable.

The Millennium II transmitter provides various fault conditions to indicate that the transmitter or

connected sensor(s) are not operating as expected. These fault conditions will override any alarm

conditions because the sensor may be unable to detect a gas exposure reliably. Examples of fault

conditions can range from no detection due to memory or communication errors and sensor failure.

Other faults can provide unreliable detection due to sensor drift or sensor nearing the end of its life.

When a Millennium II transmitter is in fault mode, immediate action should be taken to determine the

source and correct the fault condition.

The fault relay output is not commonly used to imitate an automatic shutdown. The fault output

indicates a potential problem with the transmitter not an alarm condition.

6.4 RS-485 Modbus RTU (Optional)

Optional RS-485 Modbus RTU protocol is available. The tables on the following pages give the detailed

Modbus registers and the bit values for the transmitter register.

The Millennium II Transmitter utilizes 2- wire Modbus RS-485 multi serial mode. This Modbus solution

implements a 2-wire electrical interface in accordance with the EIA/TIA-485 standards. For this

MODBUS configuration, it is important that a third wire be used for connecting all the ‘Common’

(COM) in the chain. Also a 120 Ohm line termination is required for the last device in the line. See Figure

6-2. The Instrument Engineer is responsible for calculating line length and adhering to Modbus

protocols.

Figure 6-2 Two-wire Modbus configuration

Monitoring and outputs Reference Manual

June 2016 MAN-0076, Revision 09

32 Monitoring and outputs

6.4.1 Modbus registers

Reg#

Meaning

Readable

Writeable

40001

Concentration value as calculated by sensor (RTUsensor_out), Channel 1

40002

Sensor status (RTUsensor_stat), Channel 1

40003

Temperature of sensor element housing in Kelvin (RTU temperature), Channel 1

40004

RFU, Channel 1, always read as 0x0000

40005

RFU, Channel 1, always read as 0x0000

40006

Concentration value as calculated by sensor (RTUsensor_out), Channel 2

40007

Sensor status (RTUsensor_stat), Channel 2

40008

Temperature of sensor element housing in Kelvin (RTU temperature), Channel 2

40009

RFU, Channel 2, always read as 0x0000

40010

RFU, Channel 2, always read as 0x0000

**40021

Transmitter Status

40091

Initialize Quick calibration, channel 1 to 2

40092

Initialize Normal Calibration, channel 1 to 2

NOTE: Alarm points can be set up through Modbus registers 40093 to 40096

40093

Channel 1 high alarm limit

40094

Channel 1 low alarm limit

40095

Channel 2 high alarm limit

40096

Channel 2 low alarm limit

40101

Reset latch relays

RFU – Reserved for future use

** The transmitter Status register (Register 40021) is a bit flag register. The following table shows the detailed meaning

of each bit in the register.

Bit

Meaning

0x0000

Normal Sensor operation – no fault or alarm has happened

0x0001

Channel 1 sensor fault status tripped. Communication Fault, Calibration Fault, etc

0x0002

Channel 1 Low Alarm tripped

0x0004

Channel 1 High Alarm tripped

0x0008

Channel 2 sensor fault status tripped. Communication Fault, Calibration Fault, etc

0x0010

Channel 2 Low Alarm tripped

0x0020

Channel 2 High Alarm tripped

0x0040

Channel 1 needs Calibration

0x0080

Channel 2 needs Calibration

Reference Manual Monitoring and outputs

MAN-0076, Revision 09 June 2016

Monitoring and outputs 33

6.5 Transmitter output operation

The following table outlines the operation of the outputs of the Millennium II transmitter under

different conditions. These outputs include the analog output, LED indications, and the relay outputs.

For the outputs’ status, refer to the descriptions below the table.

Condition

Current output

LED indication

Red

Green

Relay outputs

Fault

Alarm

No gas present

4 mA

Off

Slow

Normal state

Gas present, concentration below alarm

points

4-20 mA depending

on gas concentration

Slow

Off

Normal state

Gas present, concentration at or above

alarm points

4-20 mA depending

on gas concentration

Slow

Off

Normal state

Alarm state

Fault condition present, no gas present

2.5 mA

Very fast

Off

Fault state

Normal state

Fault condition present, gas present

2.5 mA

Very fast

Off

Fault state

Normal state

Fault condition present, gas above alarm

points

2.5 mA

Very fast

Off

Fault state

Normal state

Electrochemical XChem sensors only:

Sensor end of life condition present, gas

above or below alarm points

2.5 mA for 10

seconds, 4-20 mA for

50 seconds

Very fast

Off

Fault state for 5

seconds,

normal state for

55 seconds

Normal state

Fault relay:

Fault state means that the relay is in the de-energized state. Normal state means that the

relay is in the energized state.

LED indications:

Flash rates are outlined in the following table:

Flash description

Off

Slow

50 milliseconds

1 second

Fast

250 milliseconds

Very fast

50 milliseconds

Alarm relay(s):

Alarm state means that if the relay is programmed for normally de-energized, the relay

will energize to alarm; if the relay is programmed for normally energized, the relay will de-energize to

alarm. Normal state is what state that the relay is programmed for (e.g. normally energized or normally

de-energized).

6.6 Fault monitoring

Self-testing circuitry continuously checks for problems that could prevent proper response. When

power is applied to the Millennium II Transmitter, a microcontroller automatically tests the system to

ensure that it is functioning properly. During normal operation, it continuously monitors the signal

from the internal sensor source. In addition, a “watchdog” timer is maintained to ensure the program is

running correctly. When a system fault is detected, the Status LED will have a Red fast flash and the

fault signal will output a 2.5 mA signal. The transmitter’s event log may be viewed in order to

distinguish the fault condition. Refer to the Event Log menu option.

Monitoring and outputs Reference Manual

June 2016 MAN-0076, Revision 09

34 Monitoring and outputs

The fault detection circuitry does not monitor the operation of external response equipment or

external wiring to the transmitter. It is important that external equipment and wiring be checked

periodically to ensure they are operational.

6.7 Fault conditions

Fault conditions will override any alarm conditions because the sensor may be unable to detect a gas

exposure reliably, as such, the alarm relay will not provide an output.

Fault conditions provided by an instrumentation device are critical indicators that the device is not

operating as expected; therefore, when a fault condition is present, immediate attention to that fault

condition is required.

Net Safety strongly recommends that the 2.5

mA analog fault condition and fault relay (if used) be

monitored in conjunction with alarm levels on the analog output and the alarm relay, if used.

6.7.1 Transmitter fault conditions

Fault conditions that the transmitter detects are as follows:

Fault condition

M21

M22

Input voltage less than 8 VDC

Input voltage more than 33 VDC

P P

Critical memory fault

Onboard power supply fault

Reference Manual Monitoring and outputs

MAN-0076, Revision 09 June 2016

Monitoring and outputs 35

6.7.2 Sensor fault conditions

Fault conditions that the various Millennium II sensors detect are as follows:

Fault condition

SC310

SC311

ST322

ST332

ST340

ST320

ST330

ST341

ST360

Zero calibration failure

Span calibration failure

Low temperature

High temperature

P P P P

Low power

P P P P P

High power

P P P P P

Replace sensor

P P P P P P P P P

Zero drift

Signal invalid

Over-range

Memory fault

Power supply fault

Sensor end of life

Sensor weak signal

P P P P

Sensor thermistor fault

Maintenance Reference Manual

June 2016 MAN-0076, Revision 09

36 Maintenance

Section 7: Maintenance

7.1 Periodic response check

Net Safety Monitoring recommends that a bump test be performed every 90 days to ensure continued

functionality and accuracy of the detection system. Full calibration is recommended when the sensor

fails to meet acceptable accuracy standards. This involves the application of calibration gas to the

sensor, then the observation of the response LEDs, analog output, and external monitoring equipment.

Be sure to prevent unwanted response of external monitoring devices and equipment during this

procedure. If the Millennium II’s response to calibration gas is within the specified accuracy then it is

not necessary to perform a calibration.

Example: When 50% of full scale is applied, the response is expected to be between 11.5 mA (47% of full

scale) and 12.5 mA (53% of full scale). An additional consideration is the accuracy tolerance of the

calibration gas which may be + or - a few percent. If the calibration gas is + or - 10% of full scale then the

reading may be from 10.7 mA (42% of full scale) to 13.3 mA (58% of full scale).

7.2 Troubleshooting

Response to the input should be checked and, if necessary, calibration should be performed whenever

the accuracy of this check is not satisfactory. The system should also be checked when sensor or

transmitter is added or removed. If problems should develop, first check for faulty wiring, confirm

proper voltage to transmitter and attempt a calibration. If problems persist, please contact Net

Safety’s Service Department first by phone to try and resolve any issues. If issues cannot be resolved,

please follow the procedure on ‘how to return equipment’.

7.3 Storage

The transmitter and its electronic components/parts should be stored in locations free from dust and

moisture. The storage temperature should be well within the limits of the certified temperatures of the

equipment. See Section 10 for storage temperatures.

Reference Manual Maintenance

MAN-0076, Revision 09 June 2016

Maintenance 37

7.4 Spare parts and accessories

Description

Part Number

3/4 NPT ATEX certified plug - Aluminum

CP-AL-002

3/4 NPT ATEX certified plug - Stainless Steel

CP-SS-001

Aluminum separation kit

JB-MPD-A

Stainless Steel separation kit

JB-MPD-S

Magnet assembly

MAGNET-1

Conduit reducer - 3/4” to M20 - Aluminum

M20R

Conduit reducer - 3/4” to M20 - Stainless Steel

M20R-SS

Sun shade kit - Requires UN-MK-1

SSK-2

1" Pipe Mounted Sun shade kit/rain guard - Includes UN-MK-31

SSK-51

2" Pipe Mounted Sun shade kit/rain guard - includes UN-MK-32

SSK-52

3" Pipe Mounted Sun shade kit/rain guard - Includes UN-MK-33

SSK-53

Single channel transmitter w/analog output

TX-M21-A

Single channel transmitter w/analog & mech. relay outputs

TX-M21-AR

Single channel transmitter w/analog &digital Modbus outputs

TX-M21-AD

Single channel transmitter w/analog , mech. relay &digital Modbus output

TX-M21-ARD

Single channel transmitter w/ analog / Hart communication output

TX-M21-AH

Single channel transmitter w/ analog / Hart communication output for

wireless capable transmitters

TX-M21-AH-FC

Single channel transmitter w/analog /Hart communication & relay output

TX-M21-AHR

Single channel transmitter w/analog /Hart communication & relay output

for wireless capable transmitters

TX-M21-AHR-FC

Dual channel transmitter w/analog output

TX-M22-A

Dual channel transmitter w/analog and mech. relay output

TX-M22-AR

Dual channel transmitter w/analog & digital Modbus output

TX-M22-AD

Dual channel transmitter w/analog, relay & digital Modbus output

TX-M22-ARD

2" Pipe Mounting kit (stainless steel)

UN-MK-1

1" Pipe Mounting kit - All Millennium II & ECO-SENSE Gas Detectors

(stainless steel)

UN-MK-31

2" Pipe Mounting kit - All Millennium II & ECO-SENSE Gas Detectors

(stainless steel)

UN-MK-32

Maintenance Reference Manual

June 2016 MAN-0076, Revision 09

38 Maintenance

Description

Part Number

3" Pipe Mounting kit - All Millennium II & ECO-SENSE Gas Detectors

(stainless steel)

UN-MK-33

Reference Manual Electrostatic sensitive device

MAN-0076, Revision 09 June 2016

Electrostatic sensitive device 39

Section 8: Electrostatic sensitive device

Definition: Electrostatic discharge (ESD) is the transfer, between bodies, of an electrostatic charge

caused by direct contact or induced by an electrostatic field.

The most common cause of ESD is physical contact. Touching an object can cause a discharge of

electrostatic energy. If the charge is sufficient and occurs near electronic components, it can damage

or destroy those components. In some cases, damage is instantaneous and an immediate malfunction

occurs. However, symptoms are not always immediate—performance may be marginal or seemingly

normal for an indefinite period of time, followed by a sudden failure.

To eliminate potential ESD damage, review the following guidelines:

• Handle boards by the sides —taking care not to touch electronic components.

• Wear grounded wrist or foot straps, ESD shoes or heel grounders to dissipate unwanted static

energy.

• Prior to handling boards, dispel any charge in your body or equipment by touching a grounded

metal surface.

• Ensure all components are transported and stored in ESD safe packaging.

• When returning boards, carefully package in the original carton and static protective wrapping.

• Ensure ALL personnel are educated and trained in ESD Control Procedures.

In general, exercise accepted and proven precautions normally observed when handling electrostatic

sensitive devices.

Wire resistance table Reference Manual

June 2016 MAN-0076, Revision 09

40 Wire resistance table

Section 9: Wire resistance table

Distance

Feet (Meters)

AWG #20

0.5 mm2

AWG #18

0.8 mm2

AWG #16

1.0 mm2

AWG #14

2.0 mm2

100 (30.5)

1.02

0.64

0.40

0.25

200 (61)

2.03

1.28

0.80

0.51

300 (91.4)

3.05

1.92

1.20

0.76

400 (121.9)

4.06

2.55

1.61

1.01

500 (152.4)

5.08

3.20

2.01

1.26

600 (182.9)

6.09

3.83

2.41

1.52

700 (213.4)

7.11

4.47

2.81

1.77

800 (243.8)

8.12

5.11

3.21

2.02

900 (274.3)

9.14

5.75

3.61

2.27

1000 (304.8)

10.20

6.39

4.02

2.53

1250 (381)

12.70

7.99

5.03

3.16

1500 (457.2)

15.20

9.58

6.02

3.79

1750 (533.4)

17.80

11.20

7.03

4.42

2000 (609.6)

20.30

12.80

8.03

5.05

2250 (685.8)

22.80

14.40

9.03

5.68

2500 (762)

25.40

16.00

10.00

6.31

3000 (914.4)

30.50

19.20

12.00

7.58

3500 (1066.8)

35.50

22.40

14.10

8.84

4000 (1219.2)

40.60

25.50

16.10

10.00

4500 (1371.6)

45.70

28.70

18.10

11.40

5000 (1524)

50.10

32.00

20.10

12.60

5500 (1676.4)

55.80

35.10

22.10

13.91

6000 (1828.8)

61.00

38.30

24.10

15.20

6500 (1981.2)

66.00

41.50

26.10

16.40

7000 (2133.6)

71.10

44.70

28.10

17.70

7500 (2286)

76.10

47.90

30.10

19.00

8000 (2438.4)

81.20

51.10

23.10

20.20

9000 (2743.2)

91.40

57.50

36.10

22.70

10000 (3048)

102.00

63.90

40.20

25.30

Resistance shown is one way. This figure must be doubled when determining closed loop resistance.

Reference Manual Specifications

MAN-0076, Revision 09 June 2016

Specifications 41

Section 10: Specifications

10.1 Electrical

10.1.1 Operating voltage range

10.5 to 32 VDC

18 to 32 VDC (HART versions only)

10.1.2 Power consumption

2.4 W @ 24 VDC (average - varies by sensor types/quantities)

10.1.3 EMC compliance

EN 50270:2006 per EMC directive 2004/108/EC

10.2 Environmental

10.2.1 Operating temperature

-67 °F to +185 °F (-55 °C to +85 °C ) - Stainless steel

-58 °F to +185 °F (-50 °C to+85 °C ) – Stainless steel – North American explosion-proof certification

-40 °F to +185 °F (-40 °C to +85 °C ) - Aluminum

10.2.2 Relative humidity

0 - 95% RH non-condensing

10.2.3 Ingress protection

IP66 (Aluminum)

IP67 (Stainless Steel)

IP64 (with sensors)

Type 4X (transmitter only)

10.3 Mechanical

10.3.1 Enclosure material

Cast Aluminum (A359)

Stainless steel (SS316)

10.3.2 Conduit opening

3/4” NPT (3X)

Specifications Reference Manual

June 2016 MAN-0076, Revision 09

42 Specifications

10.3.3 Weight

Aluminum: 5.5 lbs (2.5 kg)

Stainless Steel: 7.0 lbs (3.2 kg)

10.4 Warranty

3 years

Reference Manual Certifications

MAN-0076, Revision 09 June 2016

Certifications 43

Section 11: Certifications

11.1 North American

Class I, Division 1, Groups BCD T5

Class I, Zone 1, AEX/Ex d IIB+H2 T5

-50 °C ≤ Ta ≤ + 85 °C

NEMA Type 4X/IP67

FM6320, ANSI/ISA 12.13.01, CSA 22.2 No. 152:2006

11.2 IECEx

Ex d IIB+H2 T5 Gb

IECEx DNV 12.0014 (Aluminum) IP66, controller only

IECEx FMG 12.0006X (Stainless Steel) IP 67, controller only

IEC 60079-0: 2007-10 & IEC 60079-1: 2007-04

11.3 FC Models

11.3.1 North American

Class I, Division 1, Groups BCD T5

Class I, Zone 1, AEx/Ex d IIB+ H2 T5

-50 °C ≤ Ta ≤ + 85 °C

NEMA Type 4X/IP67 (transmitter only)

CSA C22.2 No. 152:2006

11.3.2 IECEx (aluminum)

Ex d IIB+H2 T5 Gb

-40°C ≤ Ta ≤ + 85°C

IP66

IECEx DNV 12.0014

11.3.3 IECEx (stainless)

Ex d IIB+H2 T5 Gb

-55°C ≤ Ta ≤ + 85°C

IP67

IECEx FMG 12.0006X

Special conditions for safe use:

• Consult the manufacturer if dimensional information on the flameproof joints is necessary.

Ordering information Reference Manual

June 2016 MAN-0076, Revision 09

44 Ordering information

Section 12: Ordering information

12.1 M21 single channel transmitter

Model

Description

M21

Millennium II Single Channel Transmitter

Output

Description

Analog Output

Analog and Digital RS485 Modbus RTU Protocol Outputs

AH Analog and HART Protocol Outputs

AHR

Analog, HART Protocol and Relay Outputs

Analog and Relay Outputs

ARD

Analog, Relay and Digital RS485 Modbus RTU Protocol Outputs

Enclosure

Description

Aluminum

Stainless Steel

Wireless

Description

Not Required

Wireless Ready - THUM Capable (Used Only With AH or AHR

Outputs)

Reference Manual Ordering information

MAN-0076, Revision 09 June 2016

Ordering information 45

12.2 M22 dual channel transmitter

Model

Description

M22

Millennium II Dual Channel Transmitter

Output

Description

Analog Output

Analog and Digital RS485 Modbus RTU Protocol Outputs

Analog and Relay Outputs

ARD

Analog, Relay and Digital RS485 Modbus RTU Protocol Outputs

Enclosure

Description

Aluminum

Stainless Steel

MAN-0076

Revision 09

June 2016

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