PN 9000-280-VE, Rev B
Alarm Condition / Description / Corrective Action
Box Temp High
Box temperature is 4 degrees or higher above the setpoint.
Trigger Conditions:
• Failed Temperature Control Circuit.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Check the associated cables/wiring for proper connections and inspect them for damage (cuts, nicks, burn
marks, etc.).
• Check the associated components for proper operation and replace faulty parts if necessary.
Contact AMETEK
to verify operation before removing and replacing parts.
Box Temp Low
Box temperature is 4 degrees or lower below the setpoint.
Trigger Conditions:
• This condition may be triggered upon analyzer power-up while the analyzer is warming up to its normal oper-
ating temperature, but will clear after the analyzer has properly warmed up to its normal operating tempera-
ture.
• Faulty Heater connection.
• Faulty RTD connection.
• Faulty Heater.
• Faulty RTD.
• Low power.
Corrective Action:
Take appropriate safety precautions, open the Analyzer door, and:
• Check the Box Heater and Box Temperature RTD wiring for proper connections and inspect them for damage
(cuts, nicks, burn marks, etc.).
• Check the Box Temperature RTD for a short or open circuit. Replace the RTD if necessary.
Contact AMETEK to
verify operation before removing the RTD.
• Check the Box Heater for proper operation. Replace the Heater if necessary.
Contact AMETEK to verify opera-
tion before removing the RTD.
• Check the AC mains power to ensure adequate power is being supplied.
3-26 | Thermox
®
WDG-V UOP ATEX-IECEx Analyzer
