Ametek Thermox Series 2000 WDG-IV User Manual page 6

Thermocouple Failure ................................................................................ 6-4
Zero Gas Range Error ................................................................................. 6-4
Diagnostics Checks ............................................................................................ 6-5
Wiring Checks .............................................................................................. 6-6
Interconnecting Wiring Problem .............................................................. 6-6
Thermocouple Checks ................................................................................ 6-6
Shorted/Failed Thermocouple ................................................................... 6-6
Reversed Thermocouple Wires ................................................................. 6-6
Thermocouple Compensation .................................................................. 6-6
Circuit Check ................................................................................................ 6-6
Calibration/Aspirator Setup Checks ......................................................... 6-8
AC Power Checks ........................................................................................ 6-9
Furnace Checks ............................................................................................ 6-9
Process Pressure Checks ........................................................................... 6-10
Cell Checks ................................................................................................. 6-10
General Troubleshooting ................................................................................ 6-11
Leak Check ................................................................................................. 6-11
Plugged Plumbing Check ........................................................................ 6-12
Aspirator Air Not Pulling Sample from Process ................................... 6-12
Series 2000 LEDs ............................................................................................... 6-13
Auto Calibration Card LEDs .................................................................... 6-13
Combustibles Card LEDs ......................................................................... 6-13
Combustibles and Methane Card LEDs ................................................ 6-14
Sensor Board (80471SE) LEDs ................................................................. 6-14
Chapter 7 Service and Parts
Cell Replacement/Cleaning .............................................................................. 7-4
Thermocouple Replacement ............................................................................ 7-6
Furnace Replacement ........................................................................................ 7-8
Combustibles Detector Replacement ............................................................ 7-10
Hot-Wire Combustibles Detector Replacement .................................... 7-10
Box Heater Diagram .................................................................................. 7-13
Replacement Parts List .................................................................................... 7-14
Appendix A Serial Communications
Communication Protocols ..........................................................................A-1
General Serial Communication Commands ...........................................A-3
Development Serial Communication Commands .................................A-4
Responses .....................................................................................................A-6
Variable Table ......................................................................................................A-7
Sample Program ...............................................................................................A-24
Starting/Monitoring a Calibration: An Example .........................................A-25
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