Ametek 241CE II User Manual page 141

Primary Error
Alarm
Code Code Type
16 5 Warning
32 6 Warning
64 7 Fault
128 8 Fault
PN 903-8797, Rev A
Condition / Description / Suggested Corrective Action
w Cross Talk [Excessive-Mirror-Cross-Talk]
The water content within the Measuring Cell has exceeded the full-scale range of the
3
analyzer, which is 1000 mg/m (62.43 lb/MMcf ).
Corrective Action:
• Check the current internal Water Content readings by changing the Water Measure-
ment Option (MonitorCFG menu) to "H2O DP:INT (with water content settings adjust-
ed 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.
w High DP [Hydrocarbon-Dewpoint-Temperature-Too-High]
The Hydrocarbon Dewpoint temperature is within 5 °C (9 °F) of the measuring cycle start
temperature.
Corrective Action:
• Review the current XSCode (Stat\History menu) to check for "w Hold TimeOut" and
"w Warm TimeOut" alarms. If they are absent, increase the mirror upper setpoint tem-
perature value (ApplicCFG : MTHi) to
• Check the MTHi setting (ApplicCFG menu) and the surrounding ambient tempera-
ture. 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.
• Check the current HCDP temperature Off-Spec Alarm, if enabled (ApplicCFG menu).
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/minute (4 SCFH), decrease the sample gas flow rate.
• This condition can be a symptom of Measuring Cell contamination. If all other sug-
gested corrective action fails to resolve the problem, clean the Measuring Cell. See
"Measuring Cell Maintenance" in this chapter.
f High Temp [Mirror-RTD-Temperature-Is-Too-High]
f Low Temp [Mirror RTD-Temperature is-Too-Low]
These alarms indicate problems with the RTD (inside the Cooler Housing).
Corrective Action:
• The RTD may have failed and may need to be replaced.
If necessary, contact AMETEK Service for assistance.
15 °C (27 °F) above the dewpoint.
15 °C (27 °F)
Maintenance and Troubleshooting | 4-53
above the highest