Emerson Rosemount 370XA System Reference Manual page 190

370XA Gas Chromatograph
APRIL 2014
Alarm
Analog Input 1 High Signal
Analog Input 1 Low Signal
Analog Output 1 High Signal
Analog Output 1 Low Signal
Analog Output 2 High Signal
Analog Output 2 Low Signal
Stream 1 Validation Failure
Stream 2 Validation Failure
Stream 3 Validation Failure
Stream 4 Validation Failure
Stream 5 Validation Failure
Stream 1 RF Deviation
Stream 2 RF Deviation
Stream 3 RF Deviation
Stream 4 RF Deviation
Analyzer Board Comm Failure
LOI Comm Failure
Description and Suggested Actions
The value of the variable assigned to the analog output is
outside the range of the analog output. If the value is
valid, re-range the Analog Output and the associated
device that is receiving the signal so that the value of the
variable is within the range.
The analysis of the validation gas for the associated
stream is outside the allowable percent deviation, as
defined in the Validation Data table. Confirm that the
Validation Gas concentration is entered correctly in the
validation data table. If the concentrations are entered
correctly, check the validation run analysis results and
chromatogram for analysis errors.
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.
The response factor for one or more components have
changed during a calibration run by a percentage greater
than set in the Component Data Table. Check that the
calibration gas concentration has been entered into the
component data table correctly, and confirm that the
calibration gas bottle is not empty or isolated. If the
concentrations are correct, the isolation valves are open,
and there is sufficient calibration gas pressure (higher
than 20 PSI or 1.4 Bar), check the calibration analysis and
chromatograms for analytical errors.
The communication link between the CPU board and the
analyzer board has failed. Remove power and confirm the
analyzer board is seated correctly on the back plane. If
the analyzer board is seated correctly, replace the
analyzer board. If replacing the analyzer board does not
rectify the issue, replace the back plane board.
The communication link between the CPU Board and the
Local Operator Interface (LOI) has failed. Remove power
and confirm the connectors from the LOI are seated
correctly in the back plane. If the connectors are seated
correctly, replace the LOI. If replacing the LOI does not
rectify the issue, replace the back plane board.
System Reference Manual
7P00370-H01
7 - 3