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Reference Manual

Part Number: MAN-0076, rev. 09

Release: June 2016

Millennium II Multi-Channel Transmitter

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  Reference Manual Part Number: MAN-0076, rev. 09 Release: June 2016 Millennium II Multi-Channel Transmitter…
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  Important Instructions Net Safety Monitoring, Inc (Net Safety) designs, manufactures and tests products to function within specific conditions. Because these products are sophisticated technical instruments, it is important that the owner and operation personnel must strictly adhere both to the information printed on the product nameplate and to all instructions provided in this manual prior to installation, operation, and maintenance.
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  Net Safety and the Net Safety logo are registered trademarks of Net Safety Monitoring, Inc. The Emerson logo is a trademark and service mark of the Emerson Electric Company. Copyright © 2016 by Rosemount, Shakopee, MN.
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  Warranty 1. Limited Warranty. Subject to the limitations contained in Section 10 (Limitation of Remedy and Liability) herein, Seller warrants that (a) the licensed firmware embodied in the Goods will execute the programming instructions provided by Seller; (b) that the Goods manufactured by Seller will be free from defects in materials or workmanship under normal use and care;…

• Page 7: Table Of Contents

  Reference Manual Table of Contents MAN-0076 Revision 09 June 2016 Contents Section 1 : Introduction …………..1 Models covered ………………….1 Service support ………………….1 Return of material………………….1 Product recycling/disposal ……………….. 1 Section 2 : Installation …………..2 Unpacking and inspection ……………….. 2 Dimensions ……………………

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  Table of Contents Reference Manual June 2016 MAN-0076, Revision 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 value………………..24 4.19 Serial number and firmware version …………….24 4.20 Exit ……………………..
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  Reference Manual Table of Contents 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 transmitter ……………… 44 12.2 M22 dual channel transmitter ………………

• Page 11: Section 1: Introduction

  Modbus RTU digital. 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.

• Page 12: Section 2: Installation

  Installation Reference Manual June 2016 MAN-0076, Revision 09 Section 2: Installation Unpacking and inspection Carefully remove all of the components from the packaging and verify them against the enclosed packing list. Inspect all components for any obvious damage such as broken or loose parts. If you find any components missing or damaged, notify your local Net Safety representative or the factory immediately.

• Page 13: Faceplate Rotation

  Reference Manual Installation MAN-0076, Revision 09 June 2016 Ensure the orientation allows proper wiring and adequate wire length inside the transmitter enclosure. When determining suitable enclosure orientation for specific applications, installers should observe all local regulations and guidelines for mounting enclosures. Figure 2-2 Different enclosure orientations 2.3.2 Faceplate rotation…

• Page 14: Wiring

  Installation Reference Manual June 2016 MAN-0076, Revision 09 Insert metal standoffs in the appropriate mounting holes Tighten metal standoffs with ¼” hex tool to secure electronics module Reconnect wiring Replace faceplate, then fit and hand tighten locking knobs to metal standoffs by turning clockwise Replace enclosure cover.

• Page 15: Terminal Connection

  Reference Manual Installation MAN-0076, Revision 09 June 2016 Wiring codes and regulations may vary. Wiring must comply with all applicable regulations relating to the installation of electrical equipment in a hazardous area and is the responsibility of the installer. If in doubt, consult a qualified official before wiring the system.

• Page 16: Internal Ground Screw

  Installation Reference Manual June 2016 MAN-0076, Revision 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 harshest of industrial environments. The other components of the system –…

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  Reference Manual Installation MAN-0076, Revision 09 June 2016 · The jacket and shielding of the cable should be stripped back to permit the seal to form around the individual wires. This will prevent air particles and water leakage through the inside of the shield and into the enclosure ·…

• Page 18: Remotely Mounted Sensors Jumper Configuration

  Installation Reference Manual June 2016 MAN-0076, Revision 09 Always ensure that JP3 and JP4 jumpers are in the correct position depending on the current output configuration chosen 2.4.9 Remotely mounted sensors jumper configuration Sensor separation from the transmitter may extend up to 2000 feet (600 meters) in which case a junction box is required.

• Page 19: Remote Reset

  Reference Manual Installation MAN-0076, Revision 09 June 2016 Sensor Terminals Transmitter power terminals Sensor wires Transmitter sensor board terminal Transmitter terminal Function designation designation White +Vdc (from transmitter) Remote Reset SigA +Vdc (10.5-32Vdc) Power (+) Blue SigB Power (-) Black 4-20 (CH1) Channel #1 current loop output Green…

• Page 20: Sensor Separation/Remote Mounting Of Sensor

  Installation Reference Manual June 2016 MAN-0076, Revision 09 Figure 2-8 Remote reset wiring Sensor separation/remote mounting of sensor When it is necessary to mount the sensor remotely (separated from transmitter), by way of junction box and conduit, it is important that the installer follow the necessary requirements and guidelines relating to sensor separation and cable selection.

• Page 21: Wiring Diagrams

  Reference Manual Installation MAN-0076, Revision 09 June 2016 2.5.1 Wiring diagrams Wiring drawings show general ways in wiring the system for analog signal output. Consult qualified personnel on specific wiring requirements. Figure 2-10 Non-isolated terminal connection Installation…

• Page 22: Installation Checklist

  Installation Reference Manual June 2016 MAN-0076, Revision 09 Figure 2-11 Isolated terminal connection Installation checklist Review the following checklist prior to turning the power on to the transmitter after installation has been completed: □ Ensure that the transmitter and sensor are properly and firmly mounted. □…

• Page 23: Section 3: Operation

  Reference Manual Operation MAN-0076, Revision 09 June 2016 Section 3: Operation Transmitter and faceplate description Figure 3-1 Faceplate description 3.1.1 Display The Millennium II is equipped with an Organic LED (OLED) display. It allows the user to see the concentration of gas present for each individual channel and the various options offered. The display has a wide temperature rating and will operate well in lowly lit conditions.

• Page 24: Current Loop Measurement (Test Jacks)

  Operation Reference Manual June 2016 MAN-0076, Revision 09 3.1.3 Current loop measurement (test jacks) Do not open the transmitter, sensor, or junction box enclosure when in a classified area or when an explosive atmosphere may be present unless the power to the transmitter has been removed. For convenience, a pair of test jacks for each analog output is provided on the front face of the display module.

• Page 25: Section 4: Programming

  Reference Manual Programming MAN-0076, Revision 09 June 2016 Section 4: Programming Menu options The main menu provides access to various functional settings/options, as seen in the list below. Each menu option has a submenu, where configuration is completed. Calibrate Sensor Enable/Disable Channels Set Alarm Level Set Relay Option (available on relay models)

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  Programming Reference Manual June 2016 MAN-0076, Revision 09 Figure 4-1 Programming flowchart Enter Main Menu? Calibrate Sensor? Select Display Selftest Relay? Language? Enable/Disable Modbus Setup Sensor Upper Limit Channels? (Range) Set Alarm Level? Setup Current Date? Select Gas Type Set Relay Option? Setup Current Time? Cal Gas Value Relay Assignment?

• Page 27: Calibrate Sensor

  Reference Manual Programming MAN-0076, Revision 09 June 2016 Calibrate sensor This menu function allows the user to perform a calibration on the connected sensor. Refer to Section for the calibration procedure. 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.

• Page 28: Set Relay Option

  Programming Reference Manual June 2016 MAN-0076, Revision 09 Use switch 1 to increase the existing values representing previously set alarm levels/points and switch 2 to highlight and scroll across values. After setting desired alarm points, select “Exit” at each menu stage (sub menu and main menu). Apply test gas to confirm alarm level settings.

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  Reference Manual Programming MAN-0076, Revision 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 Table 4.

• Page 30: Alarm Mode Setting

  Programming Reference Manual June 2016 MAN-0076, Revision 09 Alarm mode setting Only used on Oxygen (ST341) sensors This option is available for detecting oxygen levels. The user is allowed to set up two Alarm points/level (normal oxygen level is 20.9 %) under three available Alarm Modes. These Alarm Modes are: Above- Above, Below-Below and Below-Above.

• Page 31: Setup Current Date

  Reference Manual Programming MAN-0076, Revision 09 June 2016 Activate the enter key (switch 3) when the desired value is displayed. After setting the baud rate, exit this sub menu option using switch 3, and then activate the down arrow key (switch 2) to highlight ‘Parity Bit’. Activate switch 3, then activate the up key (switch 2), or the down key (switch 1) to choose a value.

• Page 32: Manual Reset

  Programming Reference Manual June 2016 MAN-0076, Revision 09 Activate the enter key (switch 3) to display the sub menu. The most recent event will be displayed. Select the up arrow key (switch 1) and the down arrow key (switch 2) to toggle through all past events.

• Page 33: Sensor Upper Limit (Range)

  Reference Manual Programming MAN-0076, Revision 09 June 2016 unwanted alarm activation. Enable external equipment once testing is completed. The Self-test relay option continuously turns relays on and off to ensure that they are functioning properly. The Fault Relay is tested first, automatically followed by tests on Relay 1, 2, and 3. After the relays have been tested, “Relay Test Complete”…

• Page 34: Calibration Gas Value

  Programming Reference Manual June 2016 MAN-0076, Revision 09 4.18 Calibration gas value This option allows the user to select the calibration gas value in the transmitter main menu. Although it is recommended that 50% span gas should be used for calibration, for some sensors, the transmitter will allow tolerance/flexibility in the calibration gas available;…

• Page 35: Section 5: Calibration Procedure

  Reference Manual Calibration procedure MAN-0076, Revision 09 June 2016 Section 5: Calibration procedure Full calibration procedure Prior to attempting calibration read and understand the calibration procedure below. Also see Figure for additional reference. The following calibration procedure should be followed to ensure an accurate correlation between the output signal and the gas concentration.

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  Calibration procedure Reference Manual June 2016 MAN-0076, Revision 09 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 no contaminants are present, if the surrounding air is to be used for Zeroing.
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  Reference Manual Calibration procedure MAN-0076, Revision 09 June 2016 Figure 5-1 Calibration flowchart Enter Main Menu? Note: Calibration process is identical for Channel #2 Calibrate Sensor? Remove air canister (if used) — Zero calibration complete, full calibration continue to next block CH 1: Apply 50% span gas Calibrate Sensor #1 Note: Some sensor types can…

• Page 38: Status Conditions During Calibration

  Calibration procedure Reference Manual June 2016 MAN-0076, Revision 09 Status conditions during calibration Condition Current output LED indication Relay outputs Green Fault Alarm Sensor is zeroing itself 3 mA Solid Normal state Normal state Sensor is waiting until it detects application 3.3 mA Very fast Normal state…

• Page 39: Section 6: Monitoring And Outputs

  Reference Manual Monitoring and outputs MAN-0076, Revision 09 June 2016 Section 6: Monitoring and outputs 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;…

• Page 40: Relays (Optional)

  Monitoring and outputs Reference Manual June 2016 MAN-0076, Revision 09 Figure 6-1 Analog/HART wiring Relays (Optional) Optional electromechanical relays have Form-C SPDT contacts rated 5 Amps at 30 VDC/ 250 VAC. There are four physical relays; one Fault and three Alarm relays. These relays have Normally Open and Normally Closed contacts at the output terminals.

• Page 41: Rs-485 Modbus Rtu (Optional)

  Reference Manual Monitoring and outputs MAN-0076, Revision 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) are not operating as expected.

• Page 42: Modbus Registers

  Monitoring and outputs Reference Manual June 2016 MAN-0076, Revision 09 6.4.1 Modbus registers Reg# Meaning Readable Writeable 40001 Concentration value as calculated by sensor (RTUsensor_out), Channel 1 40002 Sensor status (RTUsensor_stat), Channel 1 40003 Temperature of sensor element housing in Kelvin (RTU temperature), Channel 1 40004 RFU, Channel 1, always read as 0x0000 40005…

• Page 43: Transmitter Output Operation

  Reference Manual Monitoring and outputs MAN-0076, Revision 09 June 2016 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’…

• Page 44: Fault Conditions

  Monitoring and outputs Reference Manual June 2016 MAN-0076, Revision 09 The fault detection circuitry does not monitor the operation of external response equipment or external wiring to the transmitter. It is important that external equipment and wiring be checked periodically to ensure they are operational. Fault conditions Fault conditions will override any alarm conditions because the sensor may be unable to detect a gas exposure reliably, as such, the alarm relay will not provide an output.

• Page 45: Sensor Fault Conditions

  Reference Manual Monitoring and outputs MAN-0076, Revision 09 June 2016 6.7.2 Sensor fault conditions Fault conditions that the various Millennium II sensors detect are as follows: Fault condition SC310 SC311 ST322 ST332 ST340 ST320 ST330 ST341 ST360 Zero calibration failure Span calibration failure Low temperature High temperature…

• Page 46: Section 7: Maintenance

  Maintenance Reference Manual June 2016 MAN-0076, Revision 09 Section 7: Maintenance 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.

• Page 47: Spare Parts And Accessories

  Reference Manual Maintenance MAN-0076, Revision 09 June 2016 Spare parts and accessories Description Part Number 3/4 NPT ATEX certified plug — Aluminum CP-AL-002 3/4 NPT ATEX certified plug — Stainless Steel CP-SS-001 Aluminum separation kit JB-MPD-A Stainless Steel separation kit JB-MPD-S Magnet assembly MAGNET-1…

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  Maintenance Reference Manual June 2016 MAN-0076, Revision 09 Description Part Number 3″ Pipe Mounting kit — All Millennium II & ECO-SENSE Gas Detectors UN-MK-33 (stainless steel) Maintenance…

• Page 49: Section 8: Electrostatic Sensitive Device

  Reference Manual Electrostatic sensitive device MAN-0076, Revision 09 June 2016 Section 8: Electrostatic sensitive device Definition: Electrostatic discharge (ESD) is the transfer, between bodies, of an electrostatic charge caused by direct contact or induced by an electrostatic field. The most common cause of ESD is physical contact. Touching an object can cause a discharge of electrostatic energy.

• Page 50: Section 9: Wire Resistance Table

  Wire resistance table Reference Manual June 2016 MAN-0076, Revision 09 Section 9: Wire resistance table Distance AWG #20 AWG #18 AWG #16 AWG #14 Feet (Meters) 0.5 mm 0.8 mm 1.0 mm 2.0 mm 100 (30.5) 1.02 0.64 0.40 0.25 200 (61) 2.03 1.28…

• Page 51: Section 10: Specifications

  Reference Manual Specifications MAN-0076, Revision 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/quantities) 10.1.3 EMC compliance EN 50270:2006 per EMC directive 2004/108/EC…

• Page 52: Weight

  Specifications Reference Manual June 2016 MAN-0076, Revision 09 10.3.3 Weight Aluminum: 5.5 lbs (2.5 kg) Stainless Steel: 7.0 lbs (3.2 kg) 10.4 Warranty 3 years Specifications…

• Page 53: Section 11: Certifications

  Reference Manual Certifications MAN-0076, Revision 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+H…

• Page 54: Section 12: Ordering Information

  Ordering information Reference Manual June 2016 MAN-0076, Revision 09 Section 12: Ordering information 12.1 M21 single channel transmitter Model Description Millennium II Single Channel Transmitter Output Description Analog Output Analog and Digital RS485 Modbus RTU Protocol Outputs Analog and HART Protocol Outputs Analog, HART Protocol and Relay Outputs Analog and Relay Outputs Analog, Relay and Digital RS485 Modbus RTU Protocol Outputs…

• Page 55: M22 Dual Channel Transmitter

  Reference Manual Ordering information MAN-0076, Revision 09 June 2016 12.2 M22 dual channel transmitter Model Description Millennium II Dual Channel Transmitter Output Description Analog Output Analog and Digital RS485 Modbus RTU Protocol Outputs Analog and Relay Outputs Analog, Relay and Digital RS485 Modbus RTU Protocol Outputs Enclosure Description Aluminum…

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  ©2016 Emerson Process Management. All rights reserved. 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.

• Reference Manual Installation MAN-0076, Revision 09 June 2016 Installation 5 Wiring codes and regulations may vary. Wiring must comply with all applicable regulations relating to the installation of electrical equipment in a hazardous area and is the responsibility of the installer. If in doubt, consult a qualified official before wiring the syst

• Reference Manual Certifications MAN-0076, Revision 09 June 2016 Certifications 43 Section 11: Certifications 11.1 North American Class I, Division 1, Groups BCD T5 Class I, Zone 1, AEX/Ex d IIB+H 2 T5 -50 °C ≤ Ta ≤ + 85 °C NEMA Type 4X/IP67 FM6320, ANSI/ISA 12.13.01, CSA 22.2 No. 152:2006 11.2 IECEx Ex d IIB+H 2 T5 Gb IECEx DNV 12.0014 (Aluminum) IP66, controller only IECEx FMG 12.00

• Reference Manual Installation MAN-0076, Revision 09 June 2016 Installation 3 Ensure the orientation allows proper wiring and adequate wire length inside the transmitter enclosure. When determining suitable enclosure orientation for specific applications, installers should observe all local regulations and guidelines for mounting enclosures. Figure 2-2 Different enclosure orientations 2.3.2 Faceplate rotation Before wiring or rotating electronics, ensure that

• Reference Manual Ordering information MAN-0076, Revision 09 June 2016 Ordering information 45 12.2 M22 dual channel transmitter Model Description M22 Millennium II Dual Channel Transmitter Output Description A Analog Output AD Analog and Digital RS485 Modbus RTU Protocol Outputs AR Analog and Relay Outputs ARD Analog, Relay and Digital RS485 Modbus RTU Protocol Outputs Enclosure Descript

• Warranty 1. Limited Warranty . Subject to the limitations contained in Section 10 (Limitation of Remedy and Liability) herein, Seller warrants that (a) the licensed firmware embodied in the Goods will execute the programming instructions provided by Seller; (b) that the Goods manufactured by Seller will be free from defects in materials or workmanship under normal use and care; and (c) Services will be performed by trained personnel using proper equipment and instrumentation for t

• Reference Manual Installation MAN-0076, Revision 09 June 2016 Installation 7 · The jacket and shielding of the cable should be stripped back to permit the seal to form around the individual wires. This will prevent air particles and water leakage through the inside of the shield and into the enclosure · It is recommended that explosionproof drains and conduit breathers be used. In some applications, changes in temperature and barometric pressure can cause breathing which allows moist air

• Monitoring and outputs Reference Manual June 2016 MAN-0076, Revision 09 32 Monitoring and outputs 6.4.1 Modbus registers Reg# Meaning Readable Writeable 40001 Concentration value as calculated by sensor (RTUsensor_out), Channel 1 X 40002 Sensor status (RTUsensor_stat), Channel 1 X 40003 Temperature of sensor element housing in Kelvin (RTU temperature), Channel 1 X 40004 RFU, Channel 1, always read as 0x0000 X 40005 RFU, Channel 1, always read

• Maintenance Reference Manual June 2016 MAN-0076, Revision 09 36 Maintenance Section 7: Maintenance 7.1 Periodic response check Net Safety Monitoring recommends that a bump test be performed every 90 days to ensure continued functionality and accuracy of the detection system. Full calibration is recommended when the sensor fails to meet acceptable accuracy standards. This involves the application of calibration gas t

• Reference Manual Programming MAN-0076, Revision 09 June 2016 Programming 21 9. Activate the enter key (switch 3) when the desired value is displayed. 10. After setting the baud rate, exit this sub menu option using switch 3, and then activate the down arrow key (switch 2) to highlight ‘Parity Bit’. 11. Activate switch 3, then activate the up key (switch 2), or the down key (switch 1) to choose a value. 12. Activate the exit key (switch 3) when the desired value i

• Programming Reference Manual June 2016 MAN-0076, Revision 09 24 Programming 4.18 Calibration gas value This option allows the user to select the calibration gas value in the transmitter main menu. Although it is recommended that 50% span gas should be used for calibration, for some sensors, the transmitter will allow tolerance/flexibility in the calibration gas available; 10% to 60% span gas allowed

• Installation Reference Manual June 2016 MAN-0076, Revision 09 12 Installation Figure 2-11 Isolated terminal connection 2.6 Installation checklist Review the following checklist prior to turning the power on to the transmitter after installation has been completed: □ Ensure that the transmitter and sensor are properly and firmly mounted. □ Ensure that stopping plugs are securely tightened on any unused conduit entri

• Monitoring and outputs Reference Manual June 2016 MAN-0076, Revision 09 30 Monitoring and outputs Figure 6-1 Analog/HART wiring 6.3 Relays (Optional) Optional electromechanical relays have Form-C SPDT contacts rated 5 Amps at 30 VDC/ 250 VAC. There are four physical relays; one Fault and three Alarm relays. These relays have Normally Open and Normally Closed contacts at the output terminals. 6.3.1 Alarm relay(s) The Millennium II transmitt

• Programming Reference Manual June 2016 MAN-0076, Revision 09 22 Programming 3. Activate the enter key (switch 3) to display the sub menu. The most recent event will be displayed. 4. Select the up arrow key (switch 1) and the down arrow key (switch 2) to toggle through all past events. 5. After viewing, select “Exit” at each menu stage (sub menu and main menu).

• Programming Reference Manual June 2016 MAN-0076, Revision 09 16 Programming Figure 4-1 Programming flowchart Enter Main Menu? Calibrate Sensor? YES NO 1 Enable/Disable Channels? Set Alarm Level? Set Relay Option? Relay Assignment? Alarm Mode Setting 1 2 1 2 1 2 1 2 1 2 Select Display Language? Modbus Setup Setup Current

• Programming Reference Manual June 2016 MAN-0076, Revision 09 20 Programming 4.8 Alarm mode setting Only used on Oxygen (ST341) sensors This option is available for detecting oxygen levels. The user is allowed to set up two Alarm points/level (normal oxygen level is 20.9 %) under three available Alarm Modes. These Alarm Modes are: Above- Above, Below-Below and Bel

MILLENNIUM II

Multi-Channel Transmitter

User Manual

Single or Dual Channel

PartNumber:MAN-000076— RevRevAprl05

December 07, 201208

IMPORTANT INFORMATION

This manual is for informational purposes only. Although every effort has been made to ensure the correctness of the information, technical inaccuracies may occur and periodic changes may be made without notice. Net Safety Monitoring Inc., assumes no responsibility for any errors contained within this manual.

If the products or procedures are used for purposes other than as described in the manual, without receiving prior confirmation of validity or suitability, Net Safety Monitoring Inc., does not guarantee the results and assumes no obligation or liability. No part of this manual may be copied, disseminated or distributed without the express written consent of Net Safety Monitoring Inc.

Net Safety Monitoring Inc., products are carefully designed and manufactured from high quality components and can be expected to provide many years of trouble free service. Each product is thoroughly tested, inspected and calibrated prior to shipment. Failures can occur which are beyond the control of the manufacturer. Failures can be minimized by adhering to the operating and maintenance instructions herein. Where the absolute greatest of reliability is required, redundancy should be designed into the system.

WARRANTY

Net Safety Monitoring Inc warrants its electronic assemblies against defective parts and workmanship for a period of 36 months from date of purchase. No other warranties or liability, expressed or implied, will be honored by Net Safety Monitoring Inc. Contact Net Safety Monitoring Inc. or an authorized representative for details.

We welcome your input at Net Safety Monitoring. If you have any comments please contact us at the phone/ address below or visit our web site and complete our on-line customer survey: www.net-safety.com/

If further language translation for this manual is required please contact:

CONTACT INFORMATION

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INTRODUCTION

Building on the outstanding legacy of the Millennium Series, Net Safety’s latest innovation in this line of continuously evolving industrial transmitters and sensors, the Millennium II, pushes the boundaries of what you can expect from your detection system. Combined with state of the art “Smart” sensors, users will receive a detection system which is both versatile and reliable for fast, accurate and continuous monitoring of gases in extreme environments.

THE PRODUCT

TRANSMITTER/CONTROLLER

A Millennium II gas detection system is composed of a field mounted transmittercontroller and Millennium II series sensors which may be integrally mounted to the controller or remotely mounted as far as 2000 feet away.

The transmitter is certified for use in hazardous locations and is available as a single or dual sensor system. All operator controls including configuration and calibration can be accessed without opening the enclosure by using other communication devices and the attached magnet to actuate reed switches. If the area is non-hazardous and the enclosure (housing) is open then the operator may choose to use push-button switches and analog output test jacks on the face of the electronics module. Available outputs are: conventional 0.0 to 20mA analog, Analog/HART, electromechanical relays, solid-state relays or Modbus RTU digital.

A dual channel transmitter is available with «peak picking» functionality where there is only one analog output and this analog output follows the signal from the sensor that is responding to the highest gas concentration. This is useful in conserving analog input capacity on connected user equipment.

THE MANUAL

This manual has been designed to guide users through each procedure, ensuring that transmitters and sensors are configured, operated and maintained properly. Guidelines and warnings are included to ensure safe and proper functioning of the equipment. The manual gives the overall operational and functional features of transmitters with sensors and may not have sensor specific information. Refer to sensor manuals for information specific to each sensor including detailed calibration instructions. If you encounter any problems, see the troubleshooting section of this manual or contact factory.

Special conditions of use:

M2a-b-c, Millennium II Transmitter with enclosure:

1.In order to maintain the performance of the system, the sensor to which this instrument is connected shall also comply with the requirements of EN 61779-1 and EN 61779-4

TX-M2a-b, Millennium II Transmitter Electronics module only (w/o enclosure):

1.If the Millennium II Transmitter is installed as Category 3 equipment, then it shall be installed in an Enclosure which maintains an ingress protection rating of IP54 and meets the enclosure requirements of EN 60079-0.

2.In order to maintain the performance of the system, the sensor to which the instrument is connected shall also comply with requirements of EN 61779-1 and EN 61779-4

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Enclosure Dimensions

The Millennium II Transmitter enclosure is available in Aluminum (AL6061) and Stainless Steel (SS316). Dimensions are in inches and millimeters.

Figure 1: Transmitter Enclosure Dimensional Drawing

* M20, ½” NPT, & ½” BSP threads also available

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SECTION 1: Installation

1.1 Unpack

Carefully remove all components from the packaging and check them against the enclosed packing list. Inspect all components for obvious damage such as broken or loose parts. If you find any components missing or damaged, notify the representative or Net Safety Monitoring, immediately.

1.2 Mounting

Ensure transmitter and sensor are securely mounted, taking into consideration all requirements. Sensors may be installed directly to transmitters or remotely using a Certified Net Safety junction box. See Figure 11 when mounting sensor remotely.

1.2.1 Transmitter Orientation Option

Depending on the installation and mounting requirements, the transmitter enclosure (housing) may be mounted in different orientations as seen in Figure 2. To accommodate the different mounting orientations, the electronics module can be rotated inside the transmitter enclosure. See Section ‘1.2.3 Rotating electronics module relative to enclosure and conduit entries’ and Figure 4.

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

Figure 2: Different enclosure orientations

When determining suitable enclosure orientation for specific application, installers should observe all local regulations and guidelines for mounting enclosures.

* M20, ½” NPT, & ½” BSP threads also available

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1.2.2 Transmitter electronics module and Relay options

The transmitter electronics module may be equipped with 4 electromechanical relays or 4 solid-state relays which are mounted to the main terminal board via plastic standoffs. Relay boards are field replaceable by simply unlocking the plastic standoffs with a small flat head screw driver. Remove relay board after unlocking standoffs, insert the replacement relay board, and then lock the plastic standoff with the screw driver. See Figure 3 for relay board description.

Warning Before wiring or replacement of relay boards, ensure that the power to transmitter is switched off. Do not open the transmitter enclosure in a classified area.

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

Refer to Appendix A, “Electrostatic Sensitive Device (ESD)”.

Figure 3: Board assembly diagram

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1.2.3 Rotating electronics module relative to enclosure and conduit entries

The electronics module consists of the relay board and faceplate (Display/CPU assembly) with main terminal board. To rotate the electronics module, follow these instructions:

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

2.Remove the enclosure cover.

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

4.Lift transmitter faceplate from enclosure.

5.Disconnect existing wiring.

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

7.Carefully remove the electronics module.

8.Rotate the electronics module to desired position.

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

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.

Warning Before wiring or rotating electronics, ensure that the power to transmitter is switched off. Do not open the transmitter enclosure in a classified area.

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

Refer to Appendix A, “Electrostatic Sensitive Device (ESD)”.

Figure 4: Rotating Electronics module

Note: To access enclosure grounding screw, remove the electronics module by following steps 1-7 above.

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SECTION 2: Wiring and installation

2.1 Field Installation

Warning Wiring codes and regulations may vary. ATEX requires that supply connection wiring must be rated at least 5°C above the maximum ambient temperature of 85°C. Wiring must comply with all applicable regulations relating to the installation of electrical equipment in a hazardous area and is the responsibility of the installer. If in doubt, consult qualified personnel before wiring the system.

Warning Do not open the transmitter enclosure in a classified area (Do not open when an explosive atmosphere may be present).

Guidelines

The safety ground connection of the transmitter is a Green screw found in the enclosure. See Figure 4 for Ground screw location. Note: The electronics module has to be removed to access Ground screw. Follow steps 1-7 under Section ‘1.2.3 Rotating electronics module relative to enclosure and conduit entries’, when removing electronics module.

If the 4-20mA signal is not used, connect a jumper between the 4 – 20mA terminal and the Common terminal to allow analog current levels to be monitored at the Test Jacks on the faceplate.

The use of shielded cable is highly recommended for signal, input, output and power wires. Refer to Section ‘2.1.2 Cable choice and guidelines’ for recommended cable to help eliminate interference caused by extraneous electrical or electromagnetic ‘noise’. To meet IEC 61000-1 and IEC 61000-4 EMI requirements, follow the recommendations listed under Section ‘2.1.2 Cable choice and guidelines’.

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 using 16AWG wires.

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

When developing a RS-485 chain of devices, the last device in the chain requires an end of line termination resistor (120 Ohms).

Transmitter connector terminals accommodate wire from 14 to 20 AWG wires.

2.1.1 Seals

Warning The use of conduit wiring seals is recommended to protect the system against water ingression, and equipment should be installed according to local electrical codes. Seals are especially recommended for installations that use high-pressure or steam cleaning devices in proximity to the transmitter and/or sensor. The cementing material used on the Millennium II sensors is suitable for an operating temperature range of

(-55°C to +85 °C).

Guidelines

It is recommended that explosion-proof drains and conduit breathers be used. In some applications, alternate changes in temperature and barometric pressure can cause ‘breathing’ which allows moist air to enter and circulate inside the conduit. Joints in the conduit system are seldom tight enough to prevent this ‘breathing’.

Threaded connections on the enclosure between the enclosure and conduit pipe need to be sealed with thread tape, such as Teflon tape, or something similar.

Hydrophobic filters (IPF-001) may be used to protect sensors from water.

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Net Safety Monitoring Inc

It is the responsibility of the installer to install conduit seals where necessary, and to design conduit runs to ensure that condensation does not accumulate and collect inside the enclosure.

2.1.2 Cable choice and guidelines

Radio Frequency Interference (RFI) can be caused by nearby electrical devices (transformers, high voltage equipment) as well as handheld communications devices/radios, which when activated, may impede the proper functioning of the transmitter and sensor. Selecting the right instrumentation cable and making proper grounding connections within the junction box will reduce or eliminate interference. Visible symptoms of Radio Frequency Interference (RFI) include inconsistent, incorrect and erratic LEL and PPM readings.

Important Wiring Guidelines

Fire and gas detection instruments are an important part of a safety alarm and shutdown system. The system is composed of:

detection instruments

customer connected equipment

wiring

Net Safety designs and manufactures its detection equipment under rigid quality control management systems and makes every effort to design for the harshest of industrial environments. The other components of the system – the customer-connected equipment and wiring – are also important contributors to the overall quality and performance of the safety system.

It is important to implement wiring that ensures the reliability and integrity of the safety system. Field wiring practices and the choice of cable type specified vary from project to project. Poor practices and choices are often found to be the source of unwanted system disruptions. Radio Frequency Interference (RFI) and Electro-Magnetic Interference (EMI) are usually very powerful disruptive forces in industrial facilities and these forces act upon the system through the wiring.

Follow the wiring specifications and guidelines in this manual carefully. The cable used should be a very high quality instrument grade, certified for the application conditions, consisting of a rugged protective outer jacket, an overall electrical shield of fine braided copper or metallic foil, and internal pairs or triads of foil shielded copper wire of suitable gauge for the power conducted over the specified length.

The shields must be electrically continuous from the instrument junction box through other junction boxes and finally to the connected equipment. The shield must be connected to a suitable ground sink as specified in the instrument manual in order to protect the system from electrical disturbances.

Recommended cable and guidelines

The type of cable and shielding practices are especially important when sensor is separated from transmitter via junction box. Net Safety recommends using CSA armored instrumentation cable (ACIC 2PR 16AWG, 300V, ISOS, PVC) when rigid (steel) conduit is not used. See Figure 5. This cable should be used between the PLC/PANEL/DCS and the Millennium II Transmitter, as well as between the Millennium II Transmitter and junction box.

Additional notes:

In general, communication cables and power cables should not run in parallel for any significant length, and should not be carried in the same cable tray. Through inductance, high currents in power cables can induce significant ‘noise’ in communication cables running parallel alongside power cables.

See cable preparation procedure on next page.

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Net Safety Monitoring Inc

Warning Before wiring, ensure that power to transmitter is switched off.

When connecting cable wires, use a small screwdriver to gently press down and hold the spring connector open. Insert the appropriate wire into the open connector hole, releasing the screwdriver to secure the wire. See Figure 6.

Figure 6: Connecting wires

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

Refer to Appendix A, “Electrostatic Sensitive Device (ESD)”.

2.1.3 Analog output, isolated supply, non-isolated supply and jumper configuration

The analog output may be powered from the main instrument power supply or a separate, independent power supply in which case an isolated wiring configuration is necessary.

To set a Non-isolated or Isolated current output, simply move the Jumpers/shorting jacks (JP3 and JP4) to either the Non-isolated or Isolated current position. For Non-isolated current output, ensure pins 3 & 2 at JP3 & JP4 location on the main terminal board are jumpered (shorted). Factory standard models ship with jumpers at JP3 & JP4 in the Non-isolated current output position (default position).

For Isolated current output, pins 1 & 2 at JP3 & JP4 should be jumpered (shorted). Note that JP3 is for configuring channel 1 and JP4 is for configuring channel 2. Jumpers and pins are located next to the Power and 4- 20 output terminals on the main terminal board. See Figure 7, also Figure 12 & Figure 13 for reference.

Figure 7: NonIsolated and Isolated current jumpers

Warning Always ensure that JP3 and JP4 jumpers are in the correct position depending on the current output configuration chosen.

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Net Safety Monitoring Inc

2.1.4 Remotely mounted sensors jumper configuration

Sensor separation from the transmitter may extend up to 2000 feet in which case a junction box is required.

When mounting sensor remotely (separating sensor from transmitter), Jumpers JP1 and JP2 should be installed over the pins. Jumpers and pins are located on the main terminal board near the sensor terminals. JP1 is for channel 1 and JP2 is for channel 2. Refer to Figure 8.

Figure 8: Separation Jumpers positions

Warning When separating sensor and transmitter, install JP1 and JP2 over pins.

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