Detcon PI-700 - Manual (Page 3)

Model PI-700
Model PI-700 iii
Table of Contents
1. Introduction ..................................................................................................................................................1
1.1 Description.......................................................................................................................................... 1
1.2 Sensor Electronics Design .................................................................................................................. 1
1.3 Modular Mechanical Design............................................................................................................... 2
1.4 Intelligent Plug-in PID Gas Sensor..................................................................................................... 3
2. Installation ....................................................................................................................................................4
2.1 ATEX Operational Guidelines for Safe Use....................................................................................... 4
2.2 Sensor Placement ................................................................................................................................ 5
2.3 Sensor Contaminants and Interference ............................................................................................... 6
2.4 Mounting Installation.......................................................................................................................... 6
2.5 Electrical Installation .......................................................................................................................... 7
2.6 Field Wiring ........................................................................................................................................ 8
2.7 Initial Start Up................................................................................................................................... 10
3. Operation ....................................................................................................................................................12
3.1 Programming Magnet Operating Instructions................................................................................... 12
3.2 Operator Interface ............................................................................................................................. 13
3.3 Normal Operation ............................................................................................................................. 14
3.4 Calibration Mode .............................................................................................................................. 15
3.4.1 AutoZero....................................................................................................................................... 15
3.4.2 AutoSpan ...................................................................................................................................... 15
3.5 Program Mode .................................................................................................................................. 18
3.5.1 View Sensor Status....................................................................................................................... 18
3.5.2 Set AutoSpan Level ...................................................................................................................... 20
3.5.3 Set Serial ID ................................................................................................................................. 21
3.5.4 Set Range...................................................................................................................................... 21
3.5.5 Set Gas Factor............................................................................................................................... 22
3.5.6 Set Zero Offset.............................................................................................................................. 22
3.5.7 Signal Output Check..................................................................................................................... 23
3.5.8 Restore Factory Defaults .............................................................................................................. 23
3.6 Program Features .............................................................................................................................. 24
3.6.1 Operational Features..................................................................................................................... 24
3.6.2 Fault Diagnostic/Failsafe Features ............................................................................................... 25
4. RS-485 Modbus™ Protocol .......................................................................................................................27
Content Description.............................................................................................................................................27
5.
Service and Maintenance............................................................................................................................29
5.1 PID Plug-In Sensor Maintenance...................................................................................................... 29
5.2 Replacement of Intelligent Plug-in Sensor ....................................................................................... 36
5.3 Replacement of ITM ......................................................................................................................... 37
5.4 Replacement of PI-700 Sensor Assembly......................................................................................... 38
6. Troubleshooting Guide ...............................................................................................................................39
7. Customer Support and Service Policy ........................................................................................................42
8. PI-700 Sensor Warranty .............................................................................................................................43
9. Appendix ....................................................................................................................................................44
9.1 Specifications.................................................................................................................................... 44
9.2 Gas Reference Table ......................................................................................................................... 46
9.3 Spare Parts, Sensor Accessories, Calibration Equipment ................................................................. 53
9.4 Model PI-700 Engineering Drawings ............................................................................................... 54
9.1 Revision History ............................................................................................................................... 54