Emerson Net Safety Millennium II Reference Manual

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Reference Manual

Part Number: MAN-0076, rev. 09

Millennium II Multi-Channel Transmitter

Release: June 2016

Important Instructions

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 per sonnel to work with this p r o d uc t. U se Net Safety parts and work procedures speci fied in this manual.

Net Safety Monitoring, Inc (Net Safety) designs, manufactures and tests product s to f uncti on within specific conditio ns. Be c ause these products are sophisticated technical i nstruments, it is impor tant 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.

Notice

The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they ar e n o t to be construed as warranti es 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 purpo se 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 o f third parties.

Product names used herein are for manufacturer or supplier identification only and may be trademarks/registered trademarks of these co m panies.

Net Safety and the Net Saf ety logo are registere d tr ad emarks of Net Safety Monitoring, Inc. The Emerson logo is a trademark and service mark of the Emerson Electric Comp any.

All rights reserved. No part of this work may be reproduced or copied in any form or by any means - graphic, electronic, or mechanical without first re c e iving written permission of Rosemount, Shakopee, MN.

Warranty

Limited Warranty

Resale Products

Limitation of Remedy and Liability

1. and Liability) herei n, Se l l e r 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 us e and ca re; 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 det e c to r s are warranted against def e ct ive parts and workmanship for 24 m onths from the date of purc hase and other electronic assemblies for 36 months from the date of purchase. Products purc hased by Seller from a thir d p ar ty for resale to Buyer ( manufacturer. Buyer ag r e es that Seller has no liabi lity 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 notif ies 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 we ar and usage; unsuitable power source s o r e nv ironmental conditions; accident; misuse; improper installation; modification; repair; use of unauthorized replacement parts; storage or handl i n g; 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 per so nn el and representatives f o r 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 b e 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 a n d in accordance with any wr i t ten 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 MERC HANTABILITY, FITNESS FOR PARTICULAR PURPOSE OR ANY OTHER MATTER WITH RESPECT T O AN Y OF T HE GOODS OR SERVICES.

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

) shall carry only the warr an ty e xtended by the original

2. DELAY IN PERFORMANCE. T HE REM EDIES OF BUYER SET FORTH IN THE AGREEMENT ARE EXCLUSIVE. IN NO EVENT, REGARDLESS OF THE FORM OF THE CL AIM OR CAUSE OF ACTION (WHETHER BASED IN CONT R AC T, INFRINGEMENT, NEGLIGENCE, STRI C T 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, R EVENUE OR USE AND COSTS INCURRED IN C L U DIN G WITHOUT LIMITATION FOR CAPITAL, FUEL AND POWER, AND CLAIMS OF BUYER’S CUSTOMERS.

. SELLER SHALL NOT BE LIABLE FOR DAMAGES CAUSED BY

Reference Manual Table of Contents

Table of Contents I

MAN-0076 Revision 09 June 2016

Contents

Section 1 : Introducti on .................................................................. 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 transmitte r 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 checkl ist ................................................................................................... 12

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

3.1 Transmitter and fac e p l ate 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 lang uag e .............................................................................................. 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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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 val ue................................................................................................... 24

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

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

Section 5 : Calibrati on pr ocedure .................................................. 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 sensitiv e device ....................................... 39

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

Section 10 : S pe cifications ............................................................ 41

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

10.1.1 Operating voltage r ang e ............................................................................... 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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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 tr ansmitter .................................................................................. 44

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

Reference Manual Introduction

Introduction 1

Rosemount 6021 Innovation Boulevard Shakopee, MN 5 5379

RMA number

MAN-0076, Revisio n 09 June 2016

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 whic h may be integrally mounted to the transmitter or remotely mounted.

The transmitter is cer tified for use in hazardou s l o c ations and is available as a si ng l e o r d ual 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 (tol l f r ee ) or e-mail

Safety.CSC@Emerson.com

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:

4. Mark all packages wi th t he 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.

for a Return Material Authorization (RMA) number.

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

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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2 Installation

Figure 2-1 - Dimensions

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Section 2: Installation

2.1 Unpacking and inspection

Carefully remove all of the components from the packaging and ver i f y the m 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].

*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 ey e -level and be easily accessible for monitoring and maintenance p ur p oses.

2.3.1 Transmitter orientation o ptions

Depending on the installa ti o n and m o unting requirements, the trans m i tter enc l o sure (housing) may be mounted in different orie ntations as seen in Figure 2-2. To accommodate the different mo unting 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

local regulations and guidelines for mounting enclosures.

Figure 2-2 Different enclosure orientations

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 componen ts, a s they are su sceptib le to el ectrostatic discharge (ESD). Refer to Section 8 for more information.

MAN-0076, Revisio n 09 June 2016

orientation for specific applications, installers should observe all

2.3.2 Faceplate rotation

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. T he

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 lo c ki ng 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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4 Installation

Figure 2-3 Rotating electronics module

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 ter m i nals.

Do not open the transmi tter, sensor, or junction box enclosure when in a classifie d ar ea or when an explosive atmosphere may be present unless the p o wer t o the transmitter has been re moved.

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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.

2.4 Wiring

2.4.1 General requirements

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Installation 5

Wiring codes and regulations may vary. Wiring must comply with all applicable regulations relating to the installation of e l e ct r i c al e q ui p m en t i n a hazardous area and is the responsibility of the installer. If in doubt, consult a qualified official before wiring the system.

When separating the se nsor from the transmitter, t he use of shielded cable is highl y r e commended meet electromagnetic compatibility (EMC) requi

to protect against interference caused by extraneous electrical or electromagnetic noise the conduit must not be used for wiring to other equipment.

Figure 2-4 Terminal connection

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rements and

. In applications where the wiring is installed in conduit,

If the 4-20 mA signal is not used, connect a jumper between the 4 – 20 mA termi nal 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 devic es, the l ast device in the chain requires an end of line termination resisto r (120 Ohms).

2.4.2 Terminal co n nection

When connecting cable wires, use a small screwdriver to gently press down and ho ld 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.

2.4.3 Cable choice and guidelines

Radio frequency interference (RFI) can be caused by near by el ectri cal dev i ces (e.g. transformers or high voltage equipment) as well as handheld commu n i c ati on devices/radios, whic h 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 ins tr um ents are an important part o f a safety alarm and shutdown system. The system is composed of:

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June 2016 MAN-0076, Revisio n 09

• 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 har shest of industrial environment s. The other components of the system – the customer-connected equipment and wiring – are also important contributors to the overall quality and perfo rmance of the safety system.

It is important to implement wiring that ensures the reliability and integrity of the safety syste m . F i e l d wiring practices and the choice of cable type specified vary from project to project. Poor practices and choices are often fo und 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 thro ug h 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 el ec tr ically continuous from the instrument junction box through o the r 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. Thr o ugh inductance, high curr e nts 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 electr o ni cs 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 gro und b e co nnected to the grounding point on the enclosure.

2.4.7 Seals

The use of seals is recommended to further protect the system against water ing r ession, and equipment should be installed according to applicable local electrical codes. Seals are especi ally recommended for installations that use hig h-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 locate d as c lose to the device as possibl e 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, u se a fiber dam to ensure proper formation of the seal. Seals should never be

poured at temperatures below freezing

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Figure 2-5 Non-isolated and isolated current jumpers

MAN-0076, Revisio n 09 June 2016

• The jacket and shield i n g of the cable should be strippe d bac k to permit the seal to form aro und 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 temperatur e and barometric pressur e c an cause breathing which al l ows moist air to enter and circulate inside the conduit. Joints in the conduit system are seldom tight enough to prevent this breathin g

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 t he main terminal board are j umped (shorted). Factory standard models ship with jumpers at JP3 & JP4 i n the non-isolated current output position.

For Isolated current o utput, pins 1 & 2 at JP3 & JP4 should be jumped (shorted). Note that JP3 is for configuring channel 1 and J P4 is for configuring channel 2. Jumpers and pins are located next to the power and 4-20 outpu t ter minals on the main terminal board. See Figure 2-5 for reference.

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8 Installation

Always ensure that J P3 and JP4 jumpers are in the correc t position configuration chosen

Figure 2-6 Separation jumper positions

When separating se nso r an d transmitter,

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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depending on the current output

2.4.9 Remotely mounted sensors jumper configuration

Sensor separatio n fr om the transmitter may exte nd up to 2000 feet (600 meters) in which cas e a junction box is required.

When mounting sensor r e motely (separating sensor from transmitter), Jumpers JP1 and JP2 should be installed over the pi ns. J um pers and pins are located o n the main terminal board near the sensor terminals. JP1 is for channel 1 and JP2 is for channel 2. R efer to Figure 2-6.

install JP1 and JP2 o ver pins.

2.4.10 Sensor and transmitter terminals

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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

MAN-0076, Revisio n 09 June 2016

2.4.11 Remote reset

If the alarm relays are c o n fi gured for latching operati o n it may be desirable to reset l atched 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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10 Installation

Figure 2-8 Remote reset wiring

Figure 2-9 Sensor sep aration/remote mounting of sensor

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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 requirem ents 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 bein g m ounted remotely, consult the multi-purpose junctio n b o x manual (MAN-0081) for wiring instructions. Always en sur e that the transmitter is supp l y ing 10.5 - 32 VDC across the sensor power terminals (VDC + and COM) of Net Safety junction bo x (J B-MPD-A/S).

The maximum distan ce b etween the sensor and transmitter is limited by the resi st ance of the connecting wiring, which is a function of the gauge of the wire being used. For effective communication, N et Safety limits the separation distance between senso r and tr ansmitter to 2000 feet (600 meters) using 1 6 A WG wire. See Section 9 for information on typical wire gauge and resistance.

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Figure 2-10 Non-isolated terminal connection

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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.

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12 Installation

Figure 2-11 Isolated terminal connection

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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 senso r ar e p r operly and firmly mount ed. □ Ensure that stopping plugs are securely ti ghtened on any unused conduit entries. □ Ensure that the transmitter and sensor are not obstructed; t r ansmitter and sensor are acc essible

and target gas is not inhib ited from reaching the senso r .

□ 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 ar e 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 co ver and sensor cap are secured tightly.

Reference Manual Operation

Operation 13

Figure 3-1 Faceplate description

MAN-0076, Revisio n 09 June 2016

Section 3: Operation

3.1 Transmitter and faceplate description

3.1.1 Display

The Millennium II is e q ui p p ed with an Organic LED (OLED) display. It allows the user to se e t he 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 i s not in use. To exit the screen sav er mode, move the magnet close to any o f 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 sol id red or green, or flashing re d o r g r e en t o i n dicate various states of the transmitter and sensor.

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14 Operation

Do not open the transmitter, sensor, or junction box enclosure when in a classified are a or when an explosive atmosphere may be presen t unless the power to the transmitter has been remo ved.

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

represent menu buttons and reed sw

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3.1.3 Current loop measurement (test jacks)

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 enclosur e and pressing menu buttons) and non-intrusive (keeping the encl osure cl o se d 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 optio ns under sub menus and per fo rm calibration. T here are three visibl e 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/M agnetic Reed switch Access

Accessing the main m enu and making a selection c an al so 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 swi tch, place and hold the magn e t c l o se to the transmitter enclosure at 8, 6 or 4 o’clock position.

itches.

3.2 Transmitter power up

After power is applied t o the transmitter, a warm-up routine will begin, the duration of which depends on the sensor type. T he d isplay will indicate the senso r warming up and the Status LED will flash slow red and the current output will be 3.0 mA. After the w arm-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 sc r een 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.

Reference Manual Programming

Programming 15

Calibrate Senso r Enable/Disabl e Channels Set Alarm Level Set Relay Option (available on relay models) Relay Assignment (available on relay models) Alarm Mode setti n g Select Display Language Modbus Setup (available on Modbus models) Setup Current Date Setup Current Time View Events Lo g Manual Reset Self-test Relay Sensor Upper Limit (Range) Select Gas Type Cal Gas Value Serial Number and Firmware version Exit

MAN-0076, Revisio n 09 June 2016

Section 4: Programming

4.1 Menu options

The main menu prov i d e s access to various functional settings/options, as seen in the list below. Each menu option has a subm enu, where configuration is completed.

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 i ntr usi ve 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 en ter key (switch 3) to display sub menu.

5. To exit the main menu, continue usi ng 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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16 Programming

Figure 4-1 Programming flowchart

Enter Main Menu? Calibrate Sensor?

YES

Enable/Disable

Set Alarm Level?

Set Relay Option?

Relay Assignment?

Alarm Mode Setting

2 1 2

1 2 1

Select Display

Modbus Setup

Setup Current Date?

Setup Current Time?

View Events Log

Manual Reset?

2 1 2 1 2 1 2

Selftest Relay?

Sensor Upper Limit

Select Gas Type

Cal Gas Value

Serial Number and

Exit

1 2 1

1 2 1 2 1

1 2 1

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Channels?

Language?

(Range)

Firmware Version

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Programming 17

MAN-0076, Revisio n 09 June 2016

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 u se r d etermined. 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 chann el 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 chann el 2 alarm levels (Point 1 or Point 2), after step 5, use switc h 3 to select CH2

Point 1 then proceed to step 8, or use switch 2 to highlig ht CH2 Point 2, then activate switch 3 to make a selection. P r o c ee d to step 8.

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18 Programming

June 2016 MAN-0076, Revisio n 09

8. Use switch 1 to increa se the existing values representing previously set alarm l e vels/points and

switch 2 to highlight and scroll across value s.

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 Poi nt 1 c an be assigned a value corre sp o nding 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 assi g n A l arm Point 1 as the low alarm c ondition 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 : Fac tory 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) t o highlight configurable Al arm 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 cha nne l 1 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.

Reference Manual Programming

Programming 19

Relays and assi g nment 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 2= Alarm level 2

RL1:CH1

RL2:CH1

RL3:CH1

CH2 POINT 2= Alarm level 2

RL1:CH2

RL2:CH2

RL3:CH2

MAN-0076, Revisio n 09 June 2016

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 T able 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 configur ation, by using

the up- down arrow key s.

5. Activate the enter key (switch 3) to make the selection. The relay (RL) and channel (C H) 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 t he appro pri ate

setting. See Table below.

POINT 1= Alarm level 1

7. Once the appropriate settings are chosen, use t he u p or down arrow key (switch 1) o r ( swi tc h 2)

Example: LEL combustible sensor connected to channel 1 and H

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

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

3. Relay Assignment : T he r e ar e (3) alarm relays and (2) cha nn els. Assign alarm relays to channels as

Point 1/Point 2/Disabled

Point 1/ Point 2/Disabled

Point 1/Point 2/Disabled

Point 1/ Point 2/Disabled

Point 1/Point 2/Disabled

and switch 3 to exit.

S sensor connected to channel 2.

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.

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

desired, e.g.

o Alarm relay 1 assigned to Channel 1 Poi nt 1 (20% LEL) o Alarm relay 2 assigned to Channel 2 Poi nt 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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20 Programming

June 2016 MAN-0076, Revisio n 09

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 lev e l i s 20.9 %) under three available Al arm Modes. These Alarm Mo des are: AboveAbove, 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 acti vating 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 ente r 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 se t:

• Addressing: From 001 (default) to 247.

• Baud Rate: 02400 bps, 04800 bps, 09600 bps (defau l t) , 19200 bps, and 57600 bps.

• Frame Format: EVEN Parity (default), ODD Pari ty , N O 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 rang e 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 me nu 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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Programming 21

MAN-0076, Revisio n 09 June 2016

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 activ ate the down

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

11. Activate switch 3, then ac tivate the up key (switch 2), or the down key (switch 1) to c ho o se 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 (s witch 1) to change the current year/month/day settings an d 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 m e nu: hour’, ‘minute’, ‘seconds’.

4. Activate the up arrow key (switch 1) to change the cur r ent 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 show n f i r st.

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.

Programming Reference Manual

22 Programming

Event Types

Display on Scre e n

Events Format /hos t

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

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

June 2016 MAN-0076, Revisio n 09

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

displayed.

4. Select the up arrow key ( switch 1) and the down arro w 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: CH 1, CH2, or transmitter: ML2. Ev e nts that occurred under these f ormats will be

logged.

• Event Types: There are a t o tal 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.

4.14 Manual reset

A Manual Reset is requi r ed after a calibration failure o r t o c l e ar a l atc he d Al ar m r elay. 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

Reference Manual Programming

Programming 23

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

MAN-0076, Revisio n 09 June 2016

The Self-test relay option continuously turns r e l ays on and off to ensure that they ar e 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 electr o mechanical relays have a cl icking sound during this te st.

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 sen sor used and may not be selectab le 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 appe ar 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) whe n the desired upper limit/rang e i s r e ached.

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 Catalyti c Be ad sensors (model SC310) o r c hoose the type of LEL gas (gas c ur ve) in the case of IR (model SC311) sensors. See specific sensor manual in relation to this menu option.

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24 Programming

June 2016 MAN-0076, Revisio n 09

4.18 Calibration gas value

This option allows the user to select the calibration gas value in the transmitt er m ai n 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 speci fic 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 c hannel 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 o f 50% span.

4. Highlight the required channel with cal i b r ation gas value using the navigation keys (switch1) o r

(switch 2), then select using switch 3. Switch 1 is u sed to increase /change a value i n 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 g et 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 ver si o n 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.

Reference Manual Calibration procedure

Calibration procedure 25

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 ga s at a rate of 0.5 – 1.0 liter per minute.

MAN-0076, Revisio n 09 June 2016

Section 5: Calibration procedu re

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; c al ibration gas outside of 50 % sp an (10% - 60% span gas) will be allowed on specific sensor models (see spe c i fic sensor manual for details). The calibration gas v al u e c an be chosen by selecting it under “cal. gas value” in the main menu. A full calibration will take approximately 5 minutes to complete.

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 de pe nding 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 p ur g e sy stem. This is particularly important when using long tubing.

Calibration procedure Reference Manual

26 Calibration procedure

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

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

June 2016 MAN-0076, Revisio n 09

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

Reference Manual Calibration procedure

Calibration procedure 27

Figure 5-1 Calibration flowchart

Calibrate Sensor?

Enter Main Menu?

YES

Calibrate Sensor #1

Calibrate Sensor #1?

Apply Clean Air

CH 1: Apply 50% span gas

CH 1 Spanning

Remove Calibration Gas

Calibration Complete

Note: Some sensor types can

Span Failed

YES

Z&SPAN Zero

Full

Zero

Calibration

Zero

Zero Failed

Yes

Note: Calibration process is identical for Channel #2

MAN-0076, Revisio n 09 June 2016

Calibrate Sensor #2 Exit

Remove air canister (if

used) - Zero calibration

complete, full calibration

continue to next block

LEL/ppm reading

Span

Successful

be calibrated with 10% to 60% span calibration gas, refer to the applicable sensor manual

Perform a manual reset

and repeat calibration

procedure

Calibration

Successful?

Perform a manual reset

and repeat calibration

procedure

Purge calibration lines

with clean air from

canister, then remove air

canister

Calibration procedure Reference Manual

28 Calibration procedure

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 user asked to remove calibration gas

3.6 mA

Off

Solid

Normal state

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

accurate data

3.0/3.3

Solid

Fault state

Normal state

June 2016 MAN-0076, Revisio n 09

5.2 Status conditions during calibration

concentration drops to 3% full-scale after

calibration gas was remove prematurely or if a ninety (90) second time limit has elapsed and the signal was too unstable to acquire

Reference Manual Monitoring and outputs

Monitoring and outputs 29

To differentiate between conditions resulting in 2.5 mA, vi ew the Event Log. See Event Log option.

MAN-0076, Revisio n 09 June 2016

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 w hat they indicate, see 6.5.

The Millennium II transmitters offer a variable 4-20 mA analog output. This output will provide gas concentration thro ugh the 4-20 mA range, where 4 mA equal s ze r o g as c o n centration and 20 mA equals the high range o f t he 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.

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 v ersion 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 p r o vides the necessary interfac e fo r

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 r ibbon 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 wir i ng across a 250 600 Ohm resistor. Do not install resistor within transmitter. See Figure 6-1.

Monitoring and outputs Reference Manual

30 Monitoring and outputs

Figure 6-1 Analog/HART wiring

June 2016 MAN-0076, Revisio n 09

6.3 Relays (Optional)

Optional electrom echanical relays have For m -C SPDT contacts rated 5 Amps a t 30 VDC/ 250 VAC. There are four physical r e l ays; one Fault and three Alarm relays. These relays hav e N ormally Open and Normally Close d c ontacts at the output terminal s.

6.3.1 Alarm relay(s)

The Millennium II transmitters can be ordered with three (3) pr o g r am mable alarm relays. These rel ay s will change state from their non-alarm state to an alarm state when gas concentr ati ons, as read by the sensor, reach the pro g r am med alarm points set in the transmitter.

The alarm relays can b e pr ogrammed to change states on alarm point #1 or alarm po i n t #2 f o r e i the r channel. They can also be programmed to be energized or de-energized under norm al c o nd i ti o ns, 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 i n the message log and the output( s) of the transmitter. When a syst em 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

Monitoring and outputs 31

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.

Figure 6-2 Two-wire Modbus configuration

MAN-0076, Revisio n 09 June 2016

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) ar e 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.

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 transmi tte r r egister.

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 standard s. 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.

Monitoring and outputs Reference Manual

32 Monitoring and outputs

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

X X 40095

Channel 2 high alarm limit

40096

Channel 2 low alarm limit

X X 40101

Reset latch relays

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

June 2016 MAN-0076, Revisio n 09

6.4.1 Modbus registers

RFU – Reserved for future use ** The transmitter Status register (Register 4 0021) is a bit flag register. T he following table shows the det ailed meaning

of each bit in the register .

Reference Manual Monitoring and outputs

Monitoring and outputs 33

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:

2.5 mA for 10

Very fast

Off

Fault state for 5

55 seconds

Normal state

Fault relay:

LED indications:

Flash description

Off

Slow

50 milliseconds

1 second

Fast

250 milliseconds

Very fast

50 milliseconds

Alarm relay(s) :

MAN-0076, Revisio n 09 June 2016

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.

Sensor end of life condition present, gas above or below alarm points

Fault state means that t he r elay is in the de-energized state. Normal state means that the

seconds, 4-20 mA for 50 seconds

relay is in the energized state.

Flash rates are outlined in the following table:

Alarm state means tha t if the relay is programmed for no r m ally 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 Re d 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.

seconds, normal state for

Monitoring and outputs Reference Manual

34 Monitoring and outputs

The fault detection circuitry does not monitor the operation of external response equipment or external wiring to the transmi tter. It is important that external equipment and wiring be checked periodically to ensure they are operational.

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; ther efo r e, when a fault condition is present, immediate attention to that fault condition is required.

Net Safety stro n gly 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.

Fault condition

M21

M22

Input voltage less than 8 VDC

Input voltage more than 33 VDC

Critical memory fault

Onboard power supply fault

June 2016 MAN-0076, Revisio n 09

6.7 Fault conditions

6.7.1 Transmitter fault condit ions

Fault conditions that the transmitter detects ar e as follows:

P P

Reference Manual Monitoring and outputs

Monitoring and outputs 35

Fault condition

SC310

SC311

ST322

ST332

ST340

ST320

ST330

ST341

ST360

Zero calibration failure

P P P P P

Span calibration failure

P P P P P P P P P

Low temperature

P P P P

High temperature

Low power

High power

Replace sensor

Zero drift

P P P P P

Signal invalid

Over-range

P P P P P

Memory fault

P P P P P P P P P

Power supply fault

P P P P P

Sensor end of life

P P P P P P

Sensor weak signal

Sensor thermistor fault

MAN-0076, Revisio n 09 June 2016

6.7.2 Sensor fault conditions

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

P P P P P P P P P P P P P P P P P P P P P P P

P P P P

Maintenance Reference Manual

36 Maintenance

June 2016 MAN-0076, Revisio n 09

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 1 1.5 mA (4 7% of full scale) and 12.5 mA (53% of full scale). An additional consideration is the accuracy tolerance of the calibration gas whic h 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, cali bratio n should be per formed whenever the accuracy of this check is not satisfactory. T he sy stem should also be checke d 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 cal i br atio n. If pr o bl e ms per sist, pl ease 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

Maintenance 37

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

MAN-0076, Revisio n 09 June 2016

7.4 Spare parts and accessories

Maintenance Reference Manual

38 Maintenance

Description

Part Number

3" Pipe Mounting kit - All Millennium II & ECO-SENSE Gas Detectors (stainless steel)

UN-MK-33

June 2016 MAN-0076, Revisio n 09

Reference Manual Electrostatic sensitive device

Electrostatic se n sitive device 39

MAN-0076, Revisio n 09 June 2016

Section 8: Electrostatic sensiti ve d evi ce

Definition: Electrostatic discharge (ESD) is the transfer, b etwee n bo di es, 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 objec t can cause a discharge o f electrostatic energy. If the charge is sufficient and occurs near electronic components, it can damage or destroy those comp o nents. In some cases, damag e i s 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 o r fo ot straps, ESD shoes or heel g r o un de r s 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 componen ts are transported and store d i n ESD safe packaging.

• When returning boards, carefully package in th e o r iginal carton and static prote ctive wrapping.

• Ensure ALL personnel are educated and trained in ESD Contr o l Procedures.

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

Wire resistance table Reference Manual

40 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

June 2016 MAN-0076, Revisio n 09

Section 9: Wire resistance table

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

Reference Manual Specifications

Specifications 41

MAN-0076, Revisio n 09 June 2016

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/q uantities)

10.1.3 EMC complian ce

EN 50270:2006 per EM C 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

42 Specifications

June 2016 MAN-0076, Revisio n 09

10.3.3 Weight

Aluminum: 5.5 lbs (2.5 kg) Stainless Steel: 7.0 l bs ( 3.2 kg)

10.4 Warranty

3 years

Reference Manual Certifications

Certifications 43

MAN-0076, Revisio n 09 June 2016

Section 11: Certifications

11.1 North American

Class I, Division 1, Groups BCD T5 Class I, Zone 1, AEX/Ex d IIB+H

-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: 2007-1 0 & I EC 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+ H

-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

44 Ordering information

Model

Description

M21

Millennium II Single Channel Transmitter

Output

Description

Analog Output

Analog and Digital RS485 Modbus RTU 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 C apable (Used Only With AH o r AHR

June 2016 MAN-0076, Revisio n 09

Section 12: Ordering information

12.1 M21 single channel transmitter

AH Analog and HART Protocol Outputs

Outputs)

Reference Manual Ordering information

Ordering information 45

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, Revisio n 09 June 2016

12.2 M22 dual channel transmitter

Americas

Emerson Process Management

Europe

Emerson Process Management AG

Middle East and Africa

Emerson Process Management

SAFETY.CSC@Emerson.com

Asia Pacific

Emerson Process Management

SAFETY.CSC@Emerson.com

EmersonProcess.com/FlameGasDetection

MAN-0076

Revision 09

June 2016

AnalyticExpert.com

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The Emerson logo is a trademark and service mark of Emerson Electric Co. Rosemount is a mark of one of the Emerson Process Management family of companies. All other marks are property of their respective owners.

The contents of this publication are presented for information purposes only, and, while effort has been made to ensure their acc uracy, they are not to be co ns t rued as warranties o r gua rantees, express or implied, regarding t he pro ducts or servi ces described herein o r t heir use or applicability. All sales are governed by our terms and conditions, which are available on request. We reserve the right t o modify

or improve the designs or specifications of our products at any time without notice.

Emerson Net Safety Millennium II Reference Manual

Specifications and Main Features

Frequently Asked Questions

User Manual