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Primary
Error
Code
Code
32
6
64
7
128
8
Alarm
Type
Condition / Description / Suggested Corrective Action
Warning
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
temperature value (ApplicCFG : MTHi) to
above the dewpoint.
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.
•
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/min
(4 SCFH), decrease the sample gas flow rate.
•
This condition can be a symptom of Measuring Cell
contamination. If all other suggested corrective action fails
to resolve the problem, clean the Measuring Cell. See
"Cleaning the Measuring Cell and Replacing its O-Ring" in
this chapter.
Fault
f High Temp [Mirror-RTD-Temperature-Is-Too-High]
Fault
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 the nearest AMETEK Service
Centre or Distributor, or the AMETEK Canada factory for
assistance.
15 °C (27 °F)
above the highest
Maintenance and Troubleshooting
15 °C (27 °F)
|
6-49
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Table of Contents
Troubleshooting
