Ametek 241CE II Operator's Manual page 161

Primary Error
Code Code
2 2
4 3
Alarm
Type Condition / Description / Suggested Corrective Action
Warning w Hold TimeOut [Purging/Hold-Stage-Time-Out]
The analyzer has encountered a problem during the Purging/
Hold Stage of the measuring cycle, such as the mirror
temperature at the end of the Purging/Hold Stage is less than
the MTHi setting.
The most common cause of this alarm is the surrounding
ambient temperature being lower than the MTHi setting.
This alarm is also caused by purging times that are too short,
causing the Purging/Hold Stage to end before the mirror
temperature can reach its MTHi setting.
Corrective Action:
• Check the MTHi setting (ApplicCFG menu) and the
surrounding ambient temperature. If the MTHi setting is
higher than the surrounding ambient temperature, change
it to a value lower than the ambient temperature.
• Ensure that the enclosure/shelter housing the analyzer is
adequately heated. The surrounding ambient temperature
should be at least
expected HCDP temperature.
Warning w Cool TimeOut [Cooling-Stage-Time-Out]
The analyzer has encountered a problem during the Cooling
Stage of the measuring cycle, such as when the lowest
temperature that could be reached during the Cooling Stage
was higher than both the Low setpoint temperature for the
mirror (MTLo) and the HCDP temperature.
The condition can be aggravated by high surrounding ambient
temperatures, high gas pressures, continuously high air
humidity (e.g., causing ice to build up on the Thermoelectric
Cooler – or TEC).
Corrective Action:
• Check the MTLo setting (ApplicCFG menu) and check
the surrounding ambient temperature and ensure that the
difference is not greater than 20 °C (68 °F). Adjust the
MTLo setting, if necessary.
• Check the MTLo setting to see if it is lower than -40 °C
(40 °F). If it is, increase it to at least -40 °C (-40 °F) or
greater.
• Check the HCDP temperature (RUN menu) to see if it is
particularly high (e.g., greater than 20 °C/68 °F).
• Ensure there is free circulation of air past the fins of the
Heatsink and that the enclosure/shelter housing the
analyzer is adequately ventilated.
(Continued next page)
15 °C (27 °F) above the highest
Maintenance and Troubleshooting
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