Maintenance and Troubleshooting | 6-43
Primary Error Alarm
Code Code Type Condition / Description / Suggested Corrective Action
4 3 Warning w No HC DP [Hydrocarbon-Dewpoint-Temperature-Not-Found]
The hydrocarbon dewpoint temperature was not determined
during the last measuring cycle. LED 4 will be On.
Corrective Action:
• Review the current XSCode (Stat\History menu) to
determine if there has been a “w Cool TimeOut” alarm.
If not, decrease the mirror low setpoint temperature
(ApplicCFG : MTLo) and check the HCDP temperature
(RUN menu) to see if it is particularly high (e.g., greater
than 20 °C/68 °F).
8 4 Warning w Check XSCode [Advice: Review-Extended-Status-Code]
XSCode alarm conditions may be present.
Corrective Action:
• Review and interpret current XSCode (Stat\History
menu) for additional alarms. Attempt to correct any alarm
conditions.
16 5 Warning w Dirty Cell [Possible-Cell-Contamination]
The Measuring Cell is contaminated with excessive
condensates or other particulate.
Corrective Action:
• Review the ^HCMir and ^WMir history buers (Stat\
History menu) to see if either of these parameters has
changed recently or if one has a brightness level of over
400 at the end of the Purging/Hold Stage. Review the End-
of-Run type parameter (ApplicCFG : RunType) and make
sure it is set to HCDP.
• From the RUN menu check the HCDP temperature to see
if it is particularly high. If so, view the ApplicCFG menu
and increase the MTHi setting and the Purge time, and
recheck the HCDP temperature.
• Ensure that the enclosure/shelter housing the analyzer is
adequately heated. The surrounding ambient temperature
should be at least 15 °C (27 °F) above the highest
expected HCDP temperature.
• If necessary clean the Measuring Cell and Filterblock
Assemblies and replace all o-rings and Membrane Filters.
Also, inspect the sample lines and clean or replace them.
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