Ametek 241CE II Operator's Manual page 162

Primary Error
Code Code
8
16
6-48 | Model 241CE II Hydrocarbon Dewpoint Analyzer
Alarm
Type
4 Warning
5 Warning
Condition / Description / Suggested Corrective Action
Corrective Action (Continued):
• If high humidity is causing problems with ice build-up on
the TEC, purge the Cooler Housing with N
gas supply such as air, with a water dewpoint temperature
less than -40 °C (-40 °F) and a flow rate less than
15 L/day (0.53 CFD). The purge gas pressure upstream
of the Flame Arrestor Fitting cannot exceed atmospheric
pressure by more than 1 PSIG (70 mBAR). See Figure
6-5 for location of Purge Flame Arrestor Fitting (Purge Air
Connection) on Cooler Housing.
• Determine if the pressure of the process stream is higher
than usual, or if there has been a significant change in the
composition of the gas stream. If the Measuring Cell purge
flow rate is > 2 L/min (4 SCFH), decrease the sample gas
flow rate.
• Review the current SCode (Stat\History menu) to see if
the "f Cool Cct" fault alarm condition is present and follow
corrective action procedures listed
(SCode), Alarm Conditions, and Corrective Actions."
w Warn Time Out [Warning-Stage-Time-Out]
The analyzer has encountered a problem during the Warming
stage of the measuring cycle, such as the mirror temperature
(MTemp) being unable to warm up to the HCDP temperature
determined in the previous Cooling Stage within a 2-minute
period.
This warning alarm occurs when the HCDP temperature is very
high and the surrounding ambient temperature drops below the
highest HCDP temperature during the Cooling Stage.
Corrective Action:
• Check the HCDP temperature reading (RUN menu) and
the surrounding ambient temperature and determine if the
ambient temperature has dropped below the last reported
HCDP temperature. Increase the ambient temperature if
necessary. The surrounding ambient temperature should
be at least 15 °C (27 °F)
HCDP temperature.
w Cross Talk [Excessive-Mirror-Cross-Talk]
The water content within the Measuring Cell has exceeded the
full-scale range of the analyzer, which is 1000 mg/m
MMcf).
Corrective Action:
• Check the current internal Water Content readings by
changing the Water Measurement Option (MonitorCFG
menu) to "H2O DP:INT (with water content settings
adjusted accordingly) and then viewing the WCt value
from the RUN menu. If the internal Water Content is very
high, this Problem may reduce the HCDP temperature
accuracy.
or another dry
2
under "Status Code
above the highest expected
3 (62.43 lb/