Net Safety MILLENNIUM II User Manual

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MILLENNIUM II

Multi-Channel Transmitter

User Manual

Single or Dual Channel

Part Number: MAN-0076 Rev 04

Part Number: MAN-0076 Rev Aprl

August 25, 2010

2008

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

Net Safety Monitoring Inc Direct: (403) 219-0688 Corporate Headquarters Facsimile: (403) 219-0694 2721 Hopewell Place NE E-mail: nsmsales@net-safety.com Calgary, AB Canada T1Y 7J7 Web-site: www.net-safety.com/

MAN-0076 Rev 4 Millennium II August 25, 2010 Net Safety Monitoring Inc

TABLE OF CONTENTS

IMPORTANT INFORMATION ...................................................................................................................................................... 2

WARRANTY ...................................................................................................................................................................................... 2

CONTACT INFORMATION ........................................................................................................................................................... 2

INTRODUCTION .............................................................................................................................................................................. 5

THE PRODUCT .............................................................................................................................................................................. 5

TRANSMITTER/CONTROLLER ................................................................................................................................................. 5

THE MANUAL ............................................................................................................................................................................... 5

Special conditions of use: ........................................................................................................................................................... 5

Enclosure Dimensions ................................................................................................................................................................ 6

SECTION 1: INSTALLATION ....................................................................................................................................................... 7

1.1 UNPACK ..................................................................................................................................................................................... 7

1.2 MOUNTING ................................................................................................................................................................................. 7

1.2.1 Transmitter Orientation Option ......................................................................................................................................... 7

1.2.2 Transmitter electronics module and Relay options ........................................................................................................... 8

1.2.3 Rotating electronics module relative to enclosure and conduit entries ............................................................................. 9

SECTION 2: WIRING AND INSTALLATION .......................................................................................................................... 10

2.1 FIELD INSTALLATION ............................................................................................................................................................... 10

Guidelines ................................................................................................................................................................................. 10

2.1.1 Seals ................................................................................................................................................................................. 10

Guidelines ................................................................................................................................................................................. 10

2.1.2 Cable choice and guidelines ............................................................................................................................................ 11

2.1.3 Analog output, isolated supply, non-isolated supply and jumper configuration.............................................................. 13

2.1.4 Remotely mounted sensors jumper configuration ............................................................................................................ 14

2.1.5 Sensor and Transmitter terminals ................................................................................................................................... 15

2.1.6 Remote Reset ................................................................................................................................................................... 16

2.1.7 Sensor Separation/ Remote mounting of sensor .............................................................................................................. 16

2.1.8 Wiring drawings .............................................................................................................................................................. 17

2.1.9 Installation Checklist ....................................................................................................................................................... 19

SECTION 3: TRANSMITTER AND FACEPLATE DESCRIPTION ....................................................................................... 20

3.1 TRANSMITTER POWER UP ........................................................................................................................................................ 20

3.2 DISPLAY ................................................................................................................................................................................... 20

3.3 STATUS LED ............................................................................................................................................................................ 21

3.4 CURRENT LOOP MEASUREMENT (TEST JACKS) ......................................................................................................................... 21

3.5 MENU BUTTONS AND ACCESS ................................................................................................................................................... 21

3.5.1 Intrusive Access ............................................................................................................................................................... 21

3.5.2 Non-Intrusive Access/Magnetic Reed switch Access ....................................................................................................... 21

SECTION 4: OPERATION ........................................................................................................................................................... 22

4.1 MENU OPTIONS ......................................................................................................................................................................... 22

4.2 NAVIGATING MAIN MENU ......................................................................................................................................................... 22

4.2.1 Full calibration (Normal calibration) procedure ............................................................................................................ 24

4.2.2 (Cont’d) Zero calibration option ..................................................................................................................................... 25

4.2.3 Enable / Disable channels ............................................................................................................................................... 27

4.2.4 Viewing and setting alarm levels (points) ........................................................................................................................ 27

4.2.5 Setting Relay options ....................................................................................................................................................... 28

4.2.6 Relay Assignment ............................................................................................................................................................. 28 

4.2.7 Relay Alarm Mode setting (for Oxygen sensors only) ..................................................................................................... 30

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4.2.8 Select Display Language ................................................................................................................................................. 30

4.2.9 MODBUS Setup ............................................................................................................................................................... 30

4.3.0 Setup Current Date .......................................................................................................................................................... 31

4.3.1 Setup Current Time .......................................................................................................................................................... 31

4.3.2 View Event Log ................................................................................................................................................................ 32

4.3.3 Manual Reset ................................................................................................................................................................... 33

4.3.4 Self Test Relay ................................................................................................................................................................. 33 

4.3.5 Sensor Upper Limit (Range) ............................................................................................................................................ 33

4.3.6 Select Gas Type ............................................................................................................................................................... 34 

4.3.7 Calibration gas value ...................................................................................................................................................... 34

4.3.8 Serial Number & Firmware Version ............................................................................................................................... 34

SECTION 5: MONITORING AND OUTPUTS .......................................................................................................................... 35

5.1FAULT MONITORING .................................................................................................................................................................. 35

5.2 RELAYS .................................................................................................................................................................................... 35

5.3 ANALOG 4-20MA ..................................................................................................................................................................... 35

Sensor Status Registers, Transmitter Status LED, Current output and Meani ng ..................................................................... 36

5.4 RS-485 MODBUS RTU ............................................................................................................................................................. 37

5.5 HART COMMUNICATION ......................................................................................................................................................... 39

SECTION 6: MAINTAINING ...................................................................................................................................................... 40

6.1 PERIODIC RESPONSE CHECK ...................................................................................................................................................... 40

6.2 TROUBLESHOOTING.................................................................................................................................................................. 40

6.3 STORAGE .................................................................................................................................................................................. 41

6.4 SPARE PARTS /ACCESSORIES .................................................................................................................................................... 41

6.5 HOW TO RETURN EQUIPMENT .................................................................................................................................................. 42

APPENDIX ....................................................................................................................................................................................... 43

APPENDIX A: ELECTROSTATIC SENSITIVE DEVICE (ESD) ............................................................................................. 43

APPENDIX B: RESISTANCE TABLE ......................................................................................................................................... 44

APPENDIX C: MILLENNIUM II TRANSMITTER SPECIFICATIONS ................................................................................ 45

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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 transmitter\controller 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

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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 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 mounting

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

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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

Electromechanical Relay Board/Terminals

FNO FCOM common FNC normally closed A1NO A1COM common A1NC normally closed A2NO A2COM common A2NC normally closed A3NO A3COM common A3NC normally closed

Solid State Relay Board/Terminals

Fault +

Alarm 1 +

Alarm 2 +

Alarm 3 +

normally open

AULT

normally open

ALARM

normally open

ALARM

normally open

ALARM

FNO

FCOM

FNC

A1NO

A1COM

A1NC

A2NO

A2COM

A2NC

A3NO

A3COM

A3NC

Fault

+ -

Alarm 1

Alarm 2

Alarm 3

COM

Shld

+Vdc

Sig A

Sig B

COM

Shld

+Vdc

Sig A

Sig B

COM

Shld

Modbus Terminals

A B COM

+Vdc

COM

4-20

Shld

Rst

ISO

Main Terminal Board

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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

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.

Wiring codes and regulations may vary. ATEX requires that supply connection wiring must be rated

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.

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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• 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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Armored Cable preparation procedure:

1. Prepare the armored instrument cable as illustrated in Figure 5 and follow all assembly and/or preparation

instructions provided by the cable and/or cable gland manufacturer.

2. Install cable gland and reducer onto the cable.

3. Ensure four (4) inches of wire length is available for connecting to terminals inside the junction box.

4. Use a small flat head screw driver when connecting wires to connector terminals. See Figure 6.

5. Connect sensor wires to the appropriate terminals. See Figure 5C, Figure 9, Figure 12 and Figure 13.

Figure 5: Cable preparation

A: Drawing showing of cable without gland B. Picture of cable showing gland and insulation

C. Picture of cable wired to junction box and sensor

Net Safety Junction Box

Shield wires from each twisted pair connected to “GND” (Earth Ground) on terminal block.

Millennium II Sensor

Shield wire from flexible Armored cable and sensor ground wire (Green wire) connected to Earth grounding screw in junction box

¾” NPT stopping plug.

Note: If required, use cable glands which have been approved for hazardous locations.

4 InchesHazloc cable gland

Cable gland & Armored cable

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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

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

Avoid touching electronic components, as they are susceptible to electrostatic discharge (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: Non- Isolated 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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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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2.1.5 Sensor and Transmitter terminals

WarningBefore wiring, ensure power 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.

Table 1: Sensor and Transmitter Terminals



Sensor Terminals

Transmitter Power Terminals

Sensor

Wires White +Vdc(from transmitter)

Red SigA

Blue SigB Black Com Green Earth Ground

Figure 9: Sensor wiring and terminal connections

Transmitter Sensor Board Terminal designation

Transmitter terminal

designation

RST Remote Reset

+Vdc(10.5-32) Power(+)

COM Power(-)

4-20(CH1) Current loop output

ISO(CH1) +Vdc isolated 4-20 power

4-20(CH2) Current loop output

ISO(CH2) +Vdc isolated 4-20 power

Function

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2.1.6 Remote Reset

If the alarm relays are configured for latching operation it may be desirable to reset latched alarms from a remote location. In this case a normally open, momentary push-button switch may be connected across terminals RST and COM.

Figure 10: Remote Reset wiring

2.1.7 Sensor Separation/ Remote mounting of sensor

When necessary to mount sensor remotely (separated from transmitter) by way of junction box and conduit, it is important that the installer follow the necessary requirements and guidelines relating to sensor separation and cable selection. See Figure 11 for typical remote mounting of sensor. Also refer to Section ‘2.1.2 Cable choice and guidelines,’ for cable selection and wiring guidelines. When sensors are being mounted remotely, consult the multi-purpose junction box manual (MAN-0081) for wiring instructions. Always ensure that the transmitter is supplying 10.5 - 32Vdc across the sensor power terminals of Net Safety junction box (JB-MPD-A/S).

The maximum distance between the sensor and transmitter is limited by the resistance of the connecting wiring, which is a function of the gauge of the wire being used. For effective communication, Net Safety limits the separation distance between sensor and transmitter to 2000ft using 16 AWG wire. See Appendix B for information on wire gauge and resistance.

Figure 11: Sensor separation/remote mounting of sensor

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2.1.8 Wiring drawings

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

Figure 12: Non-isolated terminal connecti on

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Figure 13: Isolated terminal connection

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2.1.9 Installation Checklist

Prior to operation, it is important to do the following checks.

• Ensure transmitter and sensor are properly and firmly mounted.

• Ensure that enclosure stopping plug is tightened to unused conduit entry.

• Ensure transmitter and sensor are not being obstructed; transmitter and sensor are accessible and target gas is

not inhibited from reaching sensor.

• Remove sensor red protective plastic cap.

• If hydrophobic filters (IPF-001) are being used, check for damage or debris. See the IP 66/67filter Instruction

guide (MAN-0109) for instructions.

• If calibration cups (splash guards) are fitted to sensor, ensure a snug fit.

• 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. See Table 1 and Appendix C.

• Check wiring at all termination and junction points; wiring at transmitter terminals, junction box and at power

supply. Refer to Table 1, also Figure 7, Figure 8

and Figure 9.

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SECTION 3: Transmitter and faceplate description

3.1 Transmitter Power Up

After power is applied to the transmitter, a warm-up routine will begin, the duration of which depends on the sensor type. The display will indicate the sensor warming up and the Status LED will flash Slow Red and current output will be 3.0mA. After the warm-up period, the transmitter will enter normal operation and the screen will display: “Channel 1 00 %LEL (or PPM), Channel 2 00 %LEL (or PPM).” For dual channel models either channel can be disabled if not in use. If a channel is disabled, the screen will display: “Disabled” for that particular channel. The enabled channel analog output will be to 4.0 mA during normal operation.

Figure 14: Faceplate description

Note: A slow flash is defined as the Status LED being ‘ON’ for 50 milli-seconds and ‘OFF’ for 1 second, while a fast

flash is the LED being ‘ON’ for 250 milli-seconds and ‘OFF’ for 250 milli-seconds and a very fast flash is the LED ‘ON’ for 50 milli-seconds and ‘OFF’ for 50 milli-seconds.

3.2 Display

The Millennium II is equipped with an Organic LED (O LED) display. It allows the user to see the concentration of gas present for each individual channel and the various options offered. The display has a wide temperature rating and will operate well in lowly lit conditions. In order to extend the life of the display, a screen saver is enabled if the menu is not in use. To exit the screen saver mode, move the magnet close to any of the three Reed switch locations (8 o’ clock, 6 o’ clock or 4 o’ clock position). See Figure 14 and Figure 15.

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3.3 Status LED

The Status LED can be solid Red or Green, or flashing Red or Green to indicate various states of the transmitter and sensor. Refer to “Sensor Status Registers, Status LEDs, Current Loop, and Display Messages”.

3.4 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 mA meter probes to these jacks to check loop current without opening the circuit to insert the meter. Refer to Figure 14 and Figure 15 for test jacks location.

Warning Do not open the transmitter enclosure in a classified area.

3.5 Menu buttons and access

The main menu can be accessed in two ways: Intrusive (opening the enclosure and pressing menu buttons) and NonIntrusive (keeping the enclosure closed and using the magnet and reed switches).

3.5.1 Intrusive Access

The menu buttons provide access to the Millennium II’s Main Menu options allowing the user to review and configure existing options under sub menus and perform calibration. There are three visible main menu buttons that are

located directly under the display screen. They are designated ‘1’, ‘2’ and ‘3’. See Figure 14 and Figure

3.5.2 Non-Intrusive Access/Magnetic Reed switch Access

Accessing the main menu and making a selection can also be done via an attached magnet and Reed switches. The Reed switches are located in the 8 o’ clock, 6 o’ clock and 4 o’ clock positions on the face plate and indicated by horse shoe shape print magnets. To select a Reed switch, place and hold the magnet close to the transmitter enclosure at 8, 6 or 4 o’clock position. See Figure 14 and Figure 15.

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

Figure 15: Switch positions

15.

Note: menu buttons and reed switch provide the same functions. Menu button = reed switch, indicated by ‘ ’

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SECTION 4: Operation

4.1 Menu options

The main menu provides access to various functional settings/options, as seen in the Table 2 below. Each menu option has a submenu, whereby configuration is done.

Table 2: Main menu options

Calibrate Sensor Select Display Language Self-test Relay Enable/Disable Channels Modbus Setup Sensor Upper Limit(Range) Set Alarm Level Setup Current Date Select Gas Type Set Relay Option Setup Current Time Cal. Gas Value Relay Assignment View Events Log Serial Number and Firmware version Relay Alarm Mode setting Manual Reset Exit

4.2 Navigating main menu

Navigation through the menu options is done by activating menu button 1 or 2. The same function is provided using magnet to select Reed switch 1 (indicated by printed magnet in the 8’ o clock position on the face plate) or Reed switch 2 (indicated by printed magnet in the 6’ o clock position on the face plate).

1. Enter the main menu, either intrusive or non-intrusive (using the magnet), by selecting/activating any button

then select “yes” by using switch 1.

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

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

4. Select/activate the enter key (switch 3) to display sub menu. See Figure 16 and Figure 17.

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

each menu stage (sub menu and main menu).

6. The main menu will be exited automatically if no option is selected; it takes 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.

Figure 16: Main menu navigation

Enter main menu?

Menu buttons/

Switches

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Select “Yes” by selecting menu

utton 1

Calibrate Sensor?

1 2 3

Menu buttons/

Switches

Select menu button 1 or 2 to scroll/navigate through main menu

Figure 17: Menu structure flow chart

Activate any menu button then select ‘yes’ with menu button 1 to enter main menu

Calibrate sensor? Activate menu button 3 to display sub menu)

Activate button 1

Activate button 2

Enable/disable channels?(Activat

e menu button 3 to display sub menu

Activate button 1

Activate button 2

Set Alarm levels? (Activate

menu button 3 to display sub menu)

Activate button 1

Activate button 2

Set Relay Options (Activate

menu button 3 to display sub menu)

Activate button 1

Activate button 2

Relay assignment. (Activate menu button 3 to display sub menu)

Activate button 1

Activate button 2

Set Relay Alarm mode (Activate

menu button 3 to display sub menu)

Activate button 1

Activate button 2

Set display language.(Activate

menu button 3 to display sub menu)

Activate button 1

Activate button 2

Set Modbus options (Activate

menu button 3 to display sub menu)

Activate button 1

Set current date (Activate menu

Activate button 2

button 3 to display sub menu)

(Navigate with 1 & 2, select with button 3. See pages 24, 25 & 26).

(Navigate with 1 & 2, select with button 3. See page 27).

(Navigate with 1 & 2, select with button 3. See page 27 & 28).

(Navigate with 1 & 2, select with button 3. See page 28).

(Navigate with 1 & 2, select with button 3. See pages 28, 29 &30).

For O2 sensor only (Navigate with 1 & 2, select with button 3. See page 30).

(Navigate with 1 & 2, select with button 3. See page 30).

(Navigate with 1 & 2, select with button 3. See page 30 & 31).

(Navigate with 1 & 2, select with button 3. See page 31).

Sub menu

 Calibrate sensor 1  Calibrate sensor 2  Exit

 Ch1: Enabled  CH2: Enabled  Exit

 Set CH1 level  Set CH2 Level  Exit

 Fault relay  Alarm relay 1  Alarm relay 2  Alarm relay 3

 Alarm relay 1  Alarm relay 2  Alarm relay 3  Exit

 Ch1: above-above  Ch2: above-above  Exit

 English  Exit

 Slave address  Baud rate  Parity

 Year, month, day

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Sub menu

 Hour, minutes

(Navigate with 1& 2, select with button 3. See pages 31 &32).

 Recent events

(Navigate with 1 & 2, select with button 3. See page 32).

 Initiate reset  Yes No

(Select with buttons 1 & 2. See page 33).

 Self test relay,

caution will trip alarm

 Yes No

(Select with buttons 1 & 3. See page 33).

 Ch1: range  Ch2: range  Exit

(Navigate with 1 & 2, select with button 3. See pages 33 &

34).

 Ch1: ‘target gas’  Ch2: ‘target gas’  Exit

(Navigate with 1 & 2, select with button 3. See page 34).

 Ch1:050  Ch2:050  Exit

(Navigate with 1 & 2, select with menu button 3. See page

34).

 Serial number &

Firmware

version............

(Navigate with 1 & 2, select with menu button 3. See page

34).

Activate button 2

Activate button 1

Setup current Time (Activate

menu button 3 to display sub menu)

Activate button 1

View event log (Activate menu button 3 to display sub menu)

Activate button 1

Manual reset (Activate menu button 3 to display sub menu)

Activate button 1

Self test relay. (Activate menu button 3 to display sub menu)

Activate button 1

Sensor range/ scale. (Activate

menu button 3 to display sub menu)

Activate button 1

Select gas type. (Activate menu button 3 to display sub menu)

Activate button 1

Select calibration gas value. (Activate

menu button 3 to display sub menu)

Activate button 1

Serial number & firmware. (Activate

menu button 3 to display sub menu)

Activate button 1

EXIT. (Activate menu button 3 to exit main menu)

Activate button 1

Calibrate sensor. (Activate menu button 3 to display sub menu)

Activate button 2

4.2.1 Full calibration (Normal calibration) procedure

Prior to attempting calibration read and understand the calibration procedure below. Also see Figure 18 for additional reference.

The following calibration procedure should be followed to ensure an accurate correlation between the output signal and the gas concentration. For accurate performance, the Millennium II is calibrated using 50% span gas. The transmitter will however, allow some flexibility in the use of calibration gas with some sensors; calibration gas outside of 50 % span (10% - 60% span gas) will be allowed on specific sensor models (see specific sensor manual for details). The calibration gas value can be chosen by selecting it under “cal. gas value” in the main menu. A full calibration will take approximately 5 minutes to complete.

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

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

switch 1 to select “yes.”

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

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

calibrated.

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

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

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

“Apply Clean Air” is displayed. Ensure no contaminant gases are around if ambient air is being used.

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

is being zeroed.

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

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

detected.

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

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

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

* Note: Selectable calibration gas value (% cal. gas value) is only available for some sensor types.

Warning Always apply test gas after any calibration to verify accuracy; do a bump test after calibration. When

applying test gas, make sure the system is bypassed to avoid unwanted shutdowns.

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4.2.2 (Cont’d) Zero calibration option

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. If Zero calibration is needed, at step 7 above, select ‘Zero’ using switch 3.

Warning

erroneous calibration and inaccurate performance. To avoid this, use a Calibration Cup attached to the bottom of the sensor. The cup doesn’t have to be removed for normal operation. When the cup is in place, inject calibration gas at a rate of 0.5 – 1.0 liter per minute.

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

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•

Figure 18: Calibration Flow chart

Calibration Procedure

Activate any menu button

Enter Main Menu

YES NO

Activate menu button 1 to select yes

Calibrate Sensor?

Activate menu button 3 to select

Purge system with clean air from canister, then remove air canister

Span Failed.

Perform manual reset. See page 32. Repeat calibration

Calibration complete

Remove Calibration Gas

YES

Span successful?

CH1: Spanning

LEL / ppm

Apply 50% Span gas.

reading

Note: Some sensor types can be calibrated with 10%

- 60% span calibration gas. Cal. gas value should be selected in the transmitter’s menu. See specific sensor manual.

Calibrate Sensor #1

*Calibrate Senso

EXIT

YES NO

Activate menu button 1

Activate menu button 3 to select

Apply air from canister or use clean ambient

Zero Failed.

Perform manual reset. See page 32. Repeat calibration procedure.

Remove air canister if air canister was used

in Zero calibration. Zero calibration

complete.

• Remove air canister in Full calibration

procedure and continue to span step

YES

Zero successful?

Apply Clean Air

Z & SPAN ZERO

Activate menu button 1 to select

FULL Calibration

Activate menu button 3 to select

ZERO calibration

Note: *Calibration process is similar if calibration of channel 2 is

required.

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4.2.3 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 while channel 2(CH2) is permanently disabled. Both channels are enabled for two sensor 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. 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’ and ‘CH 2 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).

4.2.4 Viewing and setting alarm levels (points)

This option enables the channel low and high alarm levels to be viewed and set-up. Alarm levels (points) for each channel are user determined. Alarm Point 1 and Point 2 for channel 1 does not relate to Alarm Point 1 and Point 2 for channel 2.

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

to select “yes.”

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

3. Activate switch 3 to enter the “Set Alarm Level” option. Sub menu options ‘Set CH1 Level’, ‘Set CH2 Level’ and

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

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

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

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

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

(already highlighted) then proceed to step 8, or highlight CH1 Point 2 using switch 2 , then activate switch 3 and proceed to step 8.

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

proceed to step 8, or use switch 2 to highlight CH2 Point 2, then activate switch 3 to make a selection. Proceed to step 8.

8. Use switch 1 to increase the existing values representing previously set alarm levels/points and switch 2 to

highlight and scroll across values.

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

to select CH2 Point 1 then

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10. Apply test gas to confirm alarm level settings.

Important

Alarm Point 1 can be assigned a value corresponding to a high alarm condition and Alarm Point 2 assigned a value corresponding to a low alarm condition. To avoid confusion however, most users may want to assign Alarm Point 1 as the low alarm condition and Alarm point 2 as the high alarm condition.

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

4.2.5 Setting Relay options

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

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

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

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

“yes.”

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

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

‘Alarm relay 2,’ ‘Alarm relay 3.’

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

‘Alarm relay 2,’ ‘Alarm relay 3.’)

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

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

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

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

‘Non- Latching,’ then activate the enter key (

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

switch 3).

4.2.6 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.

Note 1: RL1, RL2 and RL3 represents Alarm relays 1, 2 and 3. CH1 and CH2 represent channel1 and channel 2. Point 1 and Point 2 are Alarm level 1 and Alarm level 2. Alarm levels (points) are user determined and are unique to the specific channel.

Note 2: 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.

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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 2) for configuration, by using the up-

down arrow keys.

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

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

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

Table 3 below.

Table 3: Available Millennium II Relay Options

Channel # and Alarm

points(levels)

CH1

POINT 1= Alarm level 1 POINT 2= Alarm level 2

CH2

POINT 1= Alarm level 1 POINT 2= Alarm level 2

ALARM RELAY 1 (RL1) with channel # and Alarm

points (levels)

RL1:CH1

Point 1/Point 2/Disabled

RL1:CH2

Point 1/ Point 2/Disabled

Relays and Assignment Options

ALARM RELAY 2 (RL2)

with channel # and Alarm

points (levels)

RL2:CH1

Point 1/Point 2/Disabled

RL2:CH2

Point 1/ Point 2/Disabled

ALARM RELAY 3 (RL3) with channel # and Alarm

points (levels)

RL3:CH1

Point 1/Point 2/Disabled

RL3:CH2

Point 1/Point 2/Disabled

7. Once the appropriate settings are chosen, use the up or down arrow key (switch 1) or (switch 2) and switch 3

to exit.

Example: LEL combustible sensor connected to channel 1 & H2S sensor connected to channel 2. Step 1- Set Alarm Levels (points): Setup alarm levels for each channel, e.g. Channel 1 point 1 = 20% LEL, Channel 1

point 2 = 40% LEL, Channel 2 point 1 = 10 ppm, and Channel 2 point 2 = 20 ppm. Refer to Section ‘4.2.4: Viewing and setting alarm levels (points)’ when setting alarm levels.

Step 2 - Set Relay Options: Each alarm relay can be set up for energized or de-energized and latching or non-latching. Configure alarm relays options as desired. See ‘4.2.5 Setting Relay options.’

Step 3 - Relay Assignment: There are (3) alarm relays and (2) channels. Assign alarm relays to channels as desired, e.g.:

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

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

• Alarm relay 3 assigned to Channel 1 Point 2 & Channel 2 Point 2 (40% LEL & 20 ppm).

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Table 4: Typical Millennium II Relay Configurations

Channel # and selected

Alarm points (levels)

CH1

POINT 1=20% lel POINT 2=40% lel

CH2

POINT 1=10 ppm POINT 2=20 ppm

Note 1: In above example, alarm relay 3 (RL3) will trigger whenever any alarm level 2(point 2) is reached. Note 2: For the single channel relay model transmitter, all (3) alarm relays are available for channel 1.

ALARM RELAY 1 (RL1) ALARM RELAY 2 (RL2) ALARM RELAY 3 (RL3)

RL1:CH1

POINT 1=20% lel

RL1:CH2

Disabled

Relay Assignment Example

RL2:CH1

Disabled

RL2:CH2

POINT 1=10 ppm

RL3:CH1

POINT 2=40% lel

RL3:CH2

POINT 2=20 ppm

4.2.7 Relay Alarm Mode setting (for Oxygen sensors only)

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

oxygen level is 20.9 %) under three available Alarm Modes. These Alarm Modes are: Above-Above, Below-Below and Below-Above. The Alarm Mode chosen by the user depends on the particular application/operation. If surrounding air is to be used for calibration, ensure that no contaminants are present. Refer to the Oxygen Sensor

Manual (MAN-0093) for detailed information.

4.2.8 Select Display Language

This option allows the display language to be selected. The default language is English. There are also options for Spanish, French, and Portuguese.

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

select “yes.”

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

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

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

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

4.2.9 MODBUS Setup

This option enables the following MODBUS parameters to be set:

• Addressing: From 001 (default) to 247

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

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

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

select “yes.”

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

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

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

range is 001-247.

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

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

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

current baud rate.

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

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

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

(switch 2) to highlight ‘Parity Bit.’

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

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

(sub menu and main menu).

4.3.0 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 (MT).

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

switch 1 to select “yes.”

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

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

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

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

13. 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).

4.3.1 Setup Current Time

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

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.

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

4. Activate the up arrow key (switch 1) to change the current hour/minute/second settings, then use switch 2 to

cycle across ‘hour,’ ‘minute,’ ‘seconds’ values and ‘OK.’

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

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

4.3.2 View Event Log

The Millennium II Transmitter has the ability to store up to 980 events. Events can be viewed by navigating through this menu option. The most recent events are shown first.

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

select “yes.”

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

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.

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

The on-screen Events Format/host includes:

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

• Event Types: There are a total of 11 events that are stored and displayed. See Table 5 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.

Table 5: Event Types

Event Types Display on Screen Events Format /host

Power up or Reset Power UP / RST ML2

Communication Fault Communication Err CH1 or CH2

High Level Alarm High Alarm CH1 or CH2

Low Level Alarm Low Alarm CH1 or CH2

Calibration Completed Cal Complete CH1 or CH2

Calibration Zero Failed Cal Zero fail CH1 or CH2

Calibration Span Fail Cal Span Fail CH1 or CH2

Calibration Aborted Cal Abort CH1 or CH2

Sensor Fail Sensor Fail CH1 or CH2

Channel Enabled Enabled CH1 or CH2

Channel Disabled Disabled CH1 or CH2

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4.3.3 Manual Reset

A Manual Reset is required after a calibration failure or to clear a latched Alarm relay. When a manual reset is done, the transmitter will return to normal operation.

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

select “yes.”

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

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

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

4.3.4 Self Test Relay

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 tests on Relay 1, 2, and 3. After the relays have been tested, “Relay Test Complete” will be displayed. See steps to initiate relay self test below. Proper functioning electromechanical relays have a clicking sound during this test. If the Millennium II Transmitter is equipped with Solid State relays, then an Ohm meter must be used to check the changes in resistance values between contacts.

Warning When checking self-test relay function, ensure all external equipment is disabled to prevent

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

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.”

If a relay is malfunctioning, the transmitter should be sent to Net Safety’s Service Department for repair.

4.3.5 Sensor Upper Limit (Range)

This option is used to set the upper limit (range) of the gas being detected. The upper limit will vary depending on the sensor used and may not be selectable for all sensors.

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

select “yes.”

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

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

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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.

Note: If no selections appear when activating the up/down arrow keys at this stage, the specific sensor only has one upper limit/range, which cannot be altered.

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

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

4.3.6 Select Gas Type

“Select Gas Type” option allows the user to select a particular target gas and/or Correction (“K”) Factor in the case of Catalytic Bead sensors or choose the type of LEL gas (gas curve) in the case of IR sensors. See specific sensor manual in relation to this menu option.

4.3.7 Calibration gas value

This option allows the user to select the calibration gas value in the transmitter main menu. Although it is recommended that 50% span gas should be used for calibration, for some sensors, the transmitter will allow tolerance/flexibility in the calibration gas available; 10% to 60% span gas allowed for some sensor types. See specific sensor manual.

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

select “yes.”

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

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

three numeric groups: ‘hundreds,’ ‘tens,’ and ‘ones.’ For example: 0 5 0 indicates a calibration gas value of 50% span.

4. Highlight the required channel with calibration gas value using the navigation keys (switch1) or (switch 2),

then select using switch 3. Switch 1 is used to increase /change a value in each numeric group, while switch 2 is used to cycle across the numeric groups.

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

4.3.8 Serial Number & Firmware Version

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

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

select “yes.”

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

displayed.

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

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

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SECTION 5: Monitoring and outputs

5.1Fault monitoring

Self-testing circuitry continuously checks for problems that could prevent proper response. When power is applied to the Millennium II Transmitter, a micro controller automatically tests the system to ensure that it is functioning properly. During normal operation, it continuously monitors the signal from the internal sensor source. In addition, a “watchdog” timer is maintained to ensure the program is running correctly. When a system fault is detected, the Status LED will have a Red fast flash and the fault signal will output a 2.5 mA signal. The transmitter’s event log may be viewed in order to distinguish the fault condition. Refer to the Event Log menu option.

Warning

external wiring to the transmitter. It is important that external equipment and wiring be checked periodically to ensure they are operational.

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

5.2 Relays

Standard electro-mechanical 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. Solid State relays are Form A contacts rated 2.5 Amps at 60 Vdc/60Vac. These relays also have one Fault and three Alarm relays.

Alarm relays are configurable and can be assigned values; the user is allowed to assign values corresponding to desired alarm conditions, under Relay 1, Relay 2 or Relay 3 for each channel. Relays can be selected to be ‘Energized’ or ‘De-energized’ and ‘Latching’ or ‘Non-latching’. See “relay assignment” option for reference.

NOTE: The fault relay output is not commonly used to imitate an automatic shutdown. The fault output indicates a potential problem with the detection system (transmitter with sensor) not an alarm condition.

5.3 Analog 4-20mA

A 4-20 mA current output is used to transmit the transmitter and sensor status and fault codes to other devices. This output can be wired for isolated or non-isolated operation. A 4.0 mA output indicates normal operation; the transmitter’s output current range is 4.0 - 20.0 mA. For a full list of output current values and what they indicate, see “Sensor Status Registers, Status LEDs, Current Loop, and Display Messages”

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Sensor Status Registers, Transmitter Status LED, Current output and Meaning

Table 6 below, shows the sensor status registers, and the transmitter’s current output, along with corresponding status

LED and meaning.

Note: To differentiate between conditions resulting in 2.5 mA, view the Event Log. See Event Log menu option.

Table 6: Current output and meaning

Reg.

Value

Current Output

(mA)

Status LED

Red Green

Meaning

4 – 20

3.0

3.3

3.6

2.5

3.0 Slow Flash

3.0/3.3 Solid Solid

Slow Flash

(Gas found)

Solid Sensor is zeroing itself ( Cal Mode)

Very Fast

Flash

Very Fast

Flash

Solid Spanning is complete, user asked to remove gas.

Solid

Very Fast

Flash

(No Gas)

Normal Sensor operation – regularly calculates gas concentration.

Sensor is waiting until it detects application of cal gas.

Sensor waits until gas level stabilizes, then begins spanning.

Displayed for 4 seconds once gas decreases to 3% FS after user asked to remove cal gas.

Sensor is not calibrated, requires user to calibrate.

Sensor is waiting for 90 seconds to allow the signal to stabilize ( Start Delay)

Signal was too unstable to acquire accurate zero after 90 seconds

Displayed for 4 seconds is the cal gas was removed prematurely OR is a 90 second time limit has elapsed and the signal was too unstable to acquire accurate data

4 – 20 Fast Flash

2.5 Fast Flash

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See Event Log in transmitter main menu.

FAULT DETECTED: Input voltage <8V.

FAULT DETECTED: Input voltage >33V.

See Event Log in transmitter main menu.

Table 6: Current output and meaning (cont’d)

Reg. Value

Current Output

(mA)

Status LED

Red Green

Meaning

2.5 Fast Flash

20.0 Solid

2.5 Fast Flash

4-20 Fast Flash

2.5 Fast Flash

Sensor Element Failure

The concentration value is greater than the allowed range; the sensor is displaying its maximum concentration value.

FAULT DETECTED

drifted into a “Negative Gas Concentration” region (Zero Drift) and requires re-calibration.

Sensor is nearing end of life. Replace at next calibration.

FAULT DETECTED

has occurred.

FAULT DETECTED

the sensor’s onboard power supply.

: Sensor baseline has

: A critical memory fault

: A fault has occurred in

Note: A slow flash is defined as the Status LED being ‘ON’ for 50 milli-seconds and ‘OFF’ for 1 second, while a fast

flash is the LED being ‘ON’ for 250 milli-seconds and ‘OFF’ for 250 milli-seconds and a very fast flash is the LED ‘ON’ for 50 milli-seconds and ‘OFF’ for 50 milli-seconds.

5.4 RS-485 Modbus RTU

RS-485 Modbus RTU protocol is used. Tables 7 and 8 on the following pages give the detailed MODBUS registers and the bit values for the transmitter register.

The Millennium II Transmitter utilizes 2- wire Modbus RS-485 multi serial mode. This Modbus solution implements a 2-wire electrical interface in accordance with the EIA/TIA-485 standards. For this MODBUS configuration, it is important that a third wire be used for connecting all the ‘Common’ (COM) in the chain. Also a 120 Ohm line termination is required for the last device in the line. See Figure 19. The Instrument Engineer is responsible for calculating line length and adhering to MODBUS protocols.

Figure 19: Two (2)-Wire Modbus configuration

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Table 7: Modbus Registers

Reg# Meaning Readable Writeable

40001 Concentration value as calculated by sensor

(RTUsensor_out), Channel 1 40002 Sensor status (RTUsensor_stat), Channel 1 X 40003 Temperature of sensor element housing in Kelvin

(RTU temperature), Channel 1 40004 RFU, Channel 1, always read as 0x0000 X 40005 RFU, Channel 1, always read as 0x0000 X 40006 Concentration value as calculated by sensor

(RTUsensor_out), Channel 2 40007 Sensor status (RTUsensor_stat), Channel 2 X 40008 Temperature of sensor element housing in Kelvin

(RTU temperature), Channel 2 40009 RFU, Channel 2, always read as 0x0000 X 40010 RFU, Channel 2, always read as 0x0000 X 40011 Concentration value as calculated by sensor

(RTUsensor_out), Channel 3 40012 Sensor status (RTUsensor_stat), Channel 3 X 40013 Temperature of sensor element housing in Kelvin

(RTU temperature), Channel 3 40014 RFU, Channel 3, always read as 0x0000 40015 RFU, Channel 3, always read as 0x0000 40016 Concentration value as calculated by sensor

(RTUsensor_out), Channel 4 40017 Sensor status (RTUsensor_stat), Channel 4 X 40018 Temperature of sensor element housing in Kelvin

(RTU temperature), Channel 4 40019 RFU, Channel 4, always read as 0x0000 X 40020 RFU, Channel 4, always read as 0x0000 X

**40021 Transmitter Status X

40022 To 40090 RFU

40091 Initialize Quick calibration, channel 1 to 4 X X 40092 Initialize Normal Calibration, channel 1 to 4 X X

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

40093 Channel 1 high alarm limit X X 40094 Channel 1 low alarm limit X X 40095 Channel 2 high alarm limit X X 40096 Channel 2 low alarm limit X X 40097 RFU, Channel 3 high alarm limit X X 40098 RFU, Channel 3 low alarm limit X X 40099 RFU, Channel 4 high alarm limit X X 40100 RFU, Channel 4 low alarm limit X X 40101 Reset latch relays X

RFU – Reserved for future use ** The transmitter Status register (Register 40021) is a bit flag register. Table 8 on next page, shows the detailed meaning of each bit in the register.

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Table 8: Transmitter Status Register value and meaning

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

5.5 HART Communication

The HART protocol is a powerful communication technology enabling users to exploit the full functionality of the Millennium II Transmitter. The HART communication option is only available with the single channel version of the Millennium II Transmitter. The Millennium II Transmitter is a generic device that will work with other universal communication devices.

The HART Communicator may be connected to the single channel Analog/HART model Millennium II Transmitter via the HART Port connector (HPT-001) which provides the necessary interface for communication. The HART Port connector is fitted to one of the ¾” NPT conduit entries and its communication wires fitted to the HART Pins located at J5 near the ribbon cable on the underside of the display/CPU assembly. See Figure 4 for display/ CPU assembly. The HART Communicator probe wires (leads) are connected to the HART Port connector contact points. HART Communication may also be done remotely using a designated Net Safety Multipurpose Junction box (JB-MPH-A/S). See the HART Port connector manual (MAN-0083) for more details. When remote HART Communication is being done, ensure the HART jumper is connected across pins at J5 near ribbon cable on display/CPU assembly. By default the jumper is connected across pins. The HART Communicator can be connected directly in the 4-20mA signal wiring across a 250 - 600 Ohm resistor. Do not install resistor within transmitter. See Figure 20.

Figure 20: Analog/HART wiring

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SECTION 6: Maintaining

6.1 Periodic response check

Net Safety Monitoring recommends that a bump test be performed every 90 days to ensure continued functionality and accuracy of the detection system. Full calibration is recommended when the sensor fails to meet acceptable accuracy standards. This involves the application of calibration gas to the sensor, then the observation of the response LEDs, analog output, and external monitoring equipment. Be sure to prevent unwanted response of external monitoring devices and equipment during this procedure. If the Millennium II’s response to calibration gas is within the specified accuracy then it is not necessary to perform a calibration.

Example: When 50% of full scale is applied, the response is expected to be between 11.5 mA (47% of full scale) and 12.5 mA (53% of full scale). An additional consideration is the accuracy tolerance of the calibration gas which may be + or - a few percent. If the calibration gas is + or - 10% of full scale then the reading may be from 10.7 mA (42% of full scale) to 13.3 mA (58% of full scale).

6.2 Troubleshooting

Response to the input should be checked and, if necessary, calibration should be performed whenever the accuracy of this check is not satisfactory. The system should also be checked when sensor or transmitter is added or removed. If problems should develop, first check for faulty wiring, confirm proper voltage to transmitter and attempt a calibration. If problems persist, please contact Net Safety’s Service Department first by phone to try and resolve any issues. If issues cannot be resolved, please follow the procedure on ‘how to return equipment’.

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6.3 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. See

Appendix C for certified temperatures.

6.4 Spare Parts /Accessories

Table 9: Spare Parts Numbering

Net Safety Part Number Description

CCS-1 Calibration Cup/Splash Guard

DSC-1 Dust Filter Assembly

IPF-001 IP66/67 Hydrophobic Filter

JB-MPD-A or JB-MPD-S Separation Kit

TX-M21-A Single channel transmitter w/analog output

TX-M21-AR Single channel transmitter w/analog & mech. relay outputs

TX-M21-ARS Single channel transmitter w/analog & solid state relay output

TX-M21-AD Single channel transmitter w/analog &digital Modbus outputs

TX-M21-ARD Single channel transmitter w/analog , mech. relay &digital Modbus output

TX-M21-AH Single channel transmitter w/ analog / Hart communication output

TX-M21-AHR Single channel transmitter w/analog /Hart communication & relay output

TX-M22-A Dual channel transmitter w/analog output

TX-M22-AR Dual channel transmitter w/analog and mech. relay output

TX-M22-ARS Dual channel transmitter w/analog & solid state relay output

TX-M22-AD Dual channel transmitter w/analog & digital Modbus output

TX-M22-ARD Dual channel transmitter w/analog, relay & digital Modbus output

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6.5 How to Return Equipment

A Material Return Authorization number is required in order to return equipment. Please contact Net Safety Monitoring at (403) 219-0688, before returning equipment or consult our Service Department to possibly avoid returning equipment.

If you are required to return equipment, include the following information:

1. A Material Return Authorization number (provided over the phone to you by Net Safety).

2. A detailed description of the problem. The more specific you are regarding the problem, the quicker our

Service Department can determine and correct the problem.

3. A company name, contact name and telephone number.

4. A purchase order, from your company, authorizing repairs or request for quote.

5. Ship all equipment, prepaid to: Net Safety Monitoring Inc.,

2721 Hopewell Place NE, Calgary, Alberta, Canada, T1Y 7J7

6. Mark all packages: RETURN for REPAIR.

7. Waybills, for shipment outside Canada, must state: Equipment being returned for repair

All charges to be billed to the sender

Ensure a duplicate copy of the packing slip is enclosed inside the box indicating item 1 – 4 along with the courier and account number for returning the goods.

Pack items to protect them from damage and use anti-static bags or Aluminum-backed cardboard as protection from electro-static discharge.

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



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Appendix

Appendix A: ELECTROSTATIC SENSITIVE DEVICE (ESD)

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—ESD! If the charge is sufficient and occurs near electronic components, it can damage or destroy those components.

In some cases, damage is instantaneous and an immediate malfunction occurs. However, symptoms are not always immediate—performance may be marginal or seemingly normal for an indefinite period of time, followed by a sudden failure.

To eliminate potential ESD damage, review the following guidelines:

• Handle boards by metal shields—taking care not to touch electronic components

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

• Prior to handling boards, dispel any charge in your body or equipment

• Ensure components are transported and stored in static safe packaging

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

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

In general, exercise accepted and proven precautions normally observed when handling electrostatic sensitive devices. A warning label is placed on the packaging, identifying product using electrostatic sensitive semiconductor devices.

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Appendix B: Resistance Table1

Distance

(Feet)

100 1.02 0.64 0.40 0.25 200 2.03 1.28 0.80 0.51 300 3.05 1.92 1.20 0.76 400 4.06 2.55 1.61 1.01 500 5.08 3.20 2.01 1.26 600 6.09 3.83 2.41 1.52 700 7.11 4.47 2.81 1.77 800 8.12 5.11 3.21 2.02

900 9.14 5.75 3.61 2.27 1000 10.20 6.39 4.02 2.53 1250 12.70 7.99 5.03 3.16 1500 15.20 9.58 6.02 3.79 1750 17.80 11.20 7.03 4.42 2000 20.30 12.80 8.03 5.05

AWG #20

0.5mm2

AWG #18

0.8mm2

AWG #16

1.0mm2

AWG #14

2.0mm2

2250 22.80 14.40 9.03 5.68 2500 25.40 16.00 10.00 6.31 3000 30.50 19.20 12.00 7.58 3500 35.50 22.40 14.10 8.84 4000 40.60 25.50 16.10 10.00 4500 45.70 28.70 18.10 11.40 5000 50.10 32.00 20.10 12.60 5500 55.80 35.10 22.10 13.91 6000 61.00 38.30 24.10 15.20 6500 66.00 41.50 26.10 16.40 7000 71.10 44.70 28.10 17.70 7500 76.10 47.90 30.10 19.00 8000 81.20 51.10 23.10 20.20 9000 91.40 57.50 36.10 22.70

10000 102.00 63.90 40.20 25.30

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



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Appendix C: MILLENNIUM II Transmitter Specifications

Transmitter model Analog-Relay Analog Analog/HART Digital

Electrical

Power Consumption

(with sensor attached)

Voltage Range 10.5 – 32 Vdc 10.5 – 32 Vdc 18 – 32 Vdc 10.5 – 32 Vdc

RFI, EMC, Immunity

Display OLED and Status LED’s (Separate status for Normal, Fault & Alarm)

Temperature

RH 0 – 99% RH non-condensing

RFI: 150 to 170 MHz and 450 to 470 MHz, 5W FM radio at 1 meter away; EMC: IEC 61000-1-4 and IEC

Solid State( H2S or Ammonia): 100mA @24Vdc

Environmental

(Note: See sensor manuals for sensor certified temperatures).

IR: <150 mA @ 24 Vdc

61000-4-3 Severity Level 2

Display

Certified : -55°C to +85°C

Enclosure

Metallurgy Copper Free Aluminum (AL6061) or Stainless Steel (SS316)

IP/NEMA IP67 / NEMA 4X

Mounting

Mounting Surface Mount, Pipe Mount & other mounting options available.

Outputs

(4) Mechanical Relays

5A Form C contacts

Outputs

30Vdc/250Vac OR

(4) Solid State Relays

2.5A Form A contacts 60Vdc/Vac

4 – 20 mA - into a

maximum loop

impedance of 800 Ohms

@ 32Vdc or 150 Ohms @ 10.5Vdc. Isolated or

non-isolated loop supply

4 – 20 mA with HART

communication protocol

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RS 485 Modbus RTU

Electronics Module

316SS Enclosure

Approvals

Class I, Div 2 Grps ABCD; Class I, Zone 2 AEx/Ex nA nC IIC, T5.

FM07ATEX0014X: 0575 II 3G. Ex nAnC IIC, T5, Certified -55°C to +85°C.

Certified to FM 6320, CSA-C22.2 No. 152, ANSI/ISA-92.0.01, ANSI/ISA -92.03.01 FM6340,

EN61779-1, EN61779-4.

FM07ATEX0013X: 0575 II 2G, Ex d IIB+H2, T5, IP67, Certified -55°C to +85°C.

TX-M2a-b, Millennium II Transmitter Electronic Module Only (w/o enclosure) Specific Conditions of Use:

1. If the Millennium II Transmitter is installed as Category3 equipment, then it shall be installed in an

Enclosure which maintains an ingress protection rating of IP54 and meets the enclosure requirements of EN 50014 or EN 60079-0.

2. In order to maintain the performance of the system, the sensor to which the instrument is connected

to shall also comply with requirements of EN 61779-1 and EN 61779-4

Class I, Div I Grps BCD; Class I, Zone 1 AEx/Ex d IIB+H2, T5, IP67, Type 4X,

Certified -55°C to +85°C. Certified to FM 6320, CSA-C22.2 No. 152, ANSI/ISA-92.0.01, ANSI/ISA-92.03.01 FM6340,

M2a-b-c, Millennium II Transmitter with enclosure Specific Conditions of Use:

1. In order to maintain the performance of the system to which this instrument is connected to

shall also comply with the requirements of EN 61779-1 and EN 61779-4

Class I, Div I Grps BCD; Class I, Zone 1 AEx/Ex d IIB+H2, T5, IP67, Type 4X,

Certified -55°C to +85°C. Certified to FM 6320, CSA-C22.2 No. 152, ANSI/ISA-92.0.01, ANSI/ISA-92.03.01 FM6340,

EN61779-1, EN61779-4.

Aluminum Enclosure

Weight

(without sensor)

DNV-2005-OSL-ATEX-0324: 0575 II 2G, Ex d IIB+H2, T5, IP66, Certified -40°C to +85°C.

M2a-b-c, Millennium II Transmitter with enclosure Specific Conditions of Use:

1. In order to maintain the performance of the system to which this instrument is connected to

Aluminum(AL6061) enclosure: 2.4 kg (5.3 lbs), Stainless Steel(SS316) enclosure: 2.6 kg (5.5 lbs)

MAN-0076 Rev 4 Millennium II August 25, 2010 Net Safety Monitoring Inc

shall also comply with the requirements of EN 61779-1 and EN 61779-4

NetSafetyMonitoringInc. 2721HopewellPlaceNE,Calgary,ABCanadaT1Y7J7 1‐866‐FIREGAS(347‐3427)|ph.(403)219‐0688|fx.(403)219‐0694

http://www.net‐safety.com

|Email:nsmsales@net‐safety.com

PRODUCTSERVICESCONTACTINFORMATION Telephone[8am‐5pmMDT]:(403)769‐6074|(403)717‐8219 Fax:(403)219‐0694Email:productservices@net‐safety.com

http://www.net‐safety.com/service/product_services.html

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

47 MAN-0076 Rev 4 Millennium II August 25, 2010 Net Safety Monitoring Inc

Net Safety MILLENNIUM II User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual