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Model CX-IR
Table of Contents
1.
Introduction ..................................................................................................................................................1
1.1
Description .......................................................................................................................................... 1
1.2
Modular Design .................................................................................................................................. 2
2.
Installation ....................................................................................................................................................4
2.1
Sensor Placement ................................................................................................................................ 4
2.2
Sensor Mounting ................................................................................................................................. 6
2.3
Electrical Installation .......................................................................................................................... 7
2.4
Field Wiring ........................................................................................................................................ 7
2.4.1
Terminal Connections 3-Wire 4-20mA .......................................................................................... 8
2.4.2
Terminal Connections 4-20mA and RS-485 .................................................................................. 8
2.5
Initial Start Up..................................................................................................................................... 9
3.
Operation ....................................................................................................................................................11
3.1
Operator Interface ............................................................................................................................. 12
3.2
Normal Operation ............................................................................................................................. 13
3.3
Calibration Mode .............................................................................................................................. 13
3.3.1
AutoZero ....................................................................................................................................... 14
3.3.2
AutoSpan ...................................................................................................................................... 15
3.4
Program Mode .................................................................................................................................. 16
3.4.1
View Sensor Status ....................................................................................................................... 17
3.4.2
Set Gas Type ................................................................................................................................. 17
3.4.3
Set AutoSpan Level ...................................................................................................................... 18
3.4.4
Set Gas Factor ............................................................................................................................... 18
3.4.5
Bump Test .................................................................................................................................... 19
3.4.6
Restore Defaults ........................................................................................................................... 20
3.4.7
Set Modbus™ ID .......................................................................................................................... 20
3.5
Fault Diagnostic/Failsafe Feature ..................................................................................................... 21
4.
Modbus™ Communications .......................................................................................................................22
4.1
General Modbus™ Description ........................................................................................................ 22
4.2
Modbus™ Register Map & Description ........................................................................................... 22
4.2.1
Sensor Faults – Register 40005 .................................................................................................... 23
5.
Service and Maintenance ............................................................................................................................25
5.1
Replacement of Plug-in Sensor ......................................................................................................... 25
5.2
Replacement of ITM – Aluminum J-Box ......................................................................................... 26
5.3
Replacement of ITM – Stainless Steel Mini Condulet...................................................................... 26
6.
Troubleshooting Guide ...............................................................................................................................28
6.1
Under-Range problems ..................................................................................................................... 28
6.2
Stability problems ............................................................................................................................. 28
6.3
Clearing problem .............................................................................................................................. 28
6.4
Poor Calibration Repeatability .......................................................................................................... 29
6.5
Unstable Output/ sudden spiking ...................................................................................................... 29
6.6
Nuisance Alarms ............................................................................................................................... 29
6.7
Intelligent Transmitter Module (ITM) not responding ..................................................................... 29
7.
Customer Support and Service Policy ........................................................................................................30
7.1
Warranty Notice ................................................................................................................................ 30
7.2
CX-IR Sensor Warranty .................................................................................................................... 31
8.
Appendix ....................................................................................................................................................32
8.1
Specifications .................................................................................................................................... 32
8.2
Spare Parts, Sensor Accessories, Calibration Equipment ................................................................. 33
8.3
Revision Log ..................................................................................................................................... 34
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