Ametek WDG-V, Руководство пользователя

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PN 9000-133-VE, Rev U
Alarm Condition / Description / Corrective Action
Cell Under Temp
Cell temperature is four degrees or lower below the setpoint.
Trigger Conditions:
• This condition may be triggered upon analyzer power-up while the Cell is warming up to its normal operating
temperature, but will clear after the Cell has properly warmed up to its normal operating temperature.
• Faulty Heater connection.
• Faulty Thermocouple connection.
• Faulty Heater.
• Faulty Thermocouple.
• Failed Temperature Control Circuit.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Check the Heater and Thermocouple cables for proper connections and inspect them for damage (cuts, nicks,
burn marks, etc.).
• Check the Cell Thermocouple for a short or open circuit. Replace the Thermocouple if necessary.
Contact AMETEK to verify operation before removing the Thermocouple.
• Check the Heater for a short or open circuit. Replace the Heater if necessary.
Contact AMETEK to verify opera-
tion before removing the Heater.
Cold Junction Compensator Failure
The PCB temperature sensor has failed.
Trigger Conditions:
• This can be caused by faulty
electronics.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Check the associated cables for proper connections and inspect them for damage (cuts, nicks,
burn marks, etc.).
• Test the PCB temperature sensor for proper operation. Use a multimeter to measure the resistance of the Tem-
perature Sensor and to test for an open circuit.
After this check has been made, cycle the analyzer AC power Off-On; this will reset the analyzer and may clear
any problems with the PCB.
Combustible Detector Open (applicable only to WDG-VC Analyzers)
Combustibles D etector is open or not connected.
Trigger Conditions:
• Bad Combustibles D etector.
• Bad electronics or wiring.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Check the
Combustibles D etector for an open circuit.
• Check the operation of the electronics and check the wiring for damage or improper connections.
• Check the
Combustibles D etector for proper operation. Replace the Detector if necessary.
Contact AMETEK to
verify operation before removing the Detector.
3-34 | Thermox
®
WDG-V / VC / VCM / VM