Emerson Rosemount 370XA, System Reference Manual

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370XA Gas Chromatograph System Reference Manual
APRIL 2014 7P00370-H01
7 - 5
7.2 Flowcharts
If you do not find help here contact your local Rosemount Analytical
service representative for help.
Stream 1 RF Out Of Order Streams 1 to 3 should only be set to Analysis or Not Used.
This alarm may occur If the streams are incorrectly
configured for calibration. To resolve this error, start
MON2020 and select
Streams on the Application menu.
Set the stream’s Usage to Analysis or Unused .
Stream 2 RF Out Of Order
Stream 3 RF Out Of Order
Stream 4 RF Out Of Order The response factors for one or more components is not
in the order of thermal conductivity configured for natural
gas applications.
Calibration Energy Value Check Fail The energy value calculated from the analysis value of
the calibration during a calibration cycle is not within the
limits of the energy value entered from the calibration
certificate.
Stored Data Integrity Failure Data associated with the GC’s measurement results and
logs are stored in the GC along with a 16-bit cyclic
redundancy check (CRC) code. When the data is
retrieved, its integrity is verified by recomputing the CRC
code and comparing it with the CRC code stored along
with the data. If there is a mismatch, then this alarm is
generated, and you should save the current configuration
and replace the CPU board.
n-Pentane RT Drift The retention time for the n-Pentane peak has drifted too
close to valve 3’s timing. This is typically due to
contamination in the valves and indicates the module
should be exchanged and overhauled soon.
Ethane RT Drift The retention time for the ethane peak has drifted too
close to the end of the analysis cycle. This is typically due
to contamination in the valves and indicates the module
should be exchanged and overhauled soon.
Alarm Description and Suggested Actions