PN 9000-133-VE, Rev U
Alarm Condition / Description / Corrective Action
Comb Calibration Required
Combustibles Calibration is required.
Trigger Conditions:
• Last Calibration failed.
• Unit has never been calibrated.
Corrective Action:
• Restart the Calibration and allow sufficient time for it to complete its cycle.
Comb
Detector Life Nearing Its End
The Combustibles Detector sensitivity is near its end of life. This is based on calibration history.
Trigger Conditions:
• Low Combustibles Detector output.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Replace the ZrO
2
Cell.
Contact AMETEK to verify operation and to order a new Cell.
High Cell Mv
The combustible measurement is no longer valid (set to full-scale) due to lack of O
2
.
Trigger Conditions:
• Hydrocarbon upset.
Corrective Action:
• Check to determine if there has been a Hydrocarbon upset in the plant.
Last CH
4
Calibration Failed
The last methane calibration failed.
Trigger Conditions:
• Tank Empty.
• Bad solenoid.
• Insufficient time allowed for calibration.
• Bad detector.
Corrective Action:
• Check the Calibration tank.
• Check the solenoid for proper operation.
• Restart the Calibration and allow sufficient time for it to complete its cycle.
• Check the Methane Detector for proper operation.
3-38 | Thermox
®
WDG-V / VC / VCM / VM
Summary of Contents for WDG-V
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Page 60: ...PN 9000 133 VE Rev U Figure 2 16 RCU Connections 2 34 Thermox WDG V VC VCM VM...
Page 93: ...PN 9000 133 VE Rev U Figure 3 4 Thermocouple replacement Maintenance and Troubleshooting 3 19...
Page 97: ...PN 9000 133 VE Rev U Figure 3 6 Flow sensor replacement Maintenance and Troubleshooting 3 23...
Page 103: ...PN 9000 133 VE Rev U Figure 3 10 Sensor board removal Maintenance and Troubleshooting 3 29...
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