Emerson Net Safety Millennium II Reference Manual

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.

Copyright © 2016 by R o se mount, Shakopee, MN.

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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June 2016 MAN-0076, Revisio n 09

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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MAN-0076 Revision 09 June 2016

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 [phone]
(toll free) or [e-mail]

.

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 [phone] (tol l f r ee ) or e-mail

[e-mail]

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

June 2016 MAN-0076, Revisio n 09

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.

June 2016 MAN-0076, Revisio n 09

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

MAN-0076, Revisio n 09 June 2016

to

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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6 Installation

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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Installation 7

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.