Maintenance and Troubleshooting | 5-29
Condition/Alarm Name Description and Suggested Corrective Action
Manifold pressure
Aspirator pressure These alarm conditions indicate that the pressure within these
components exceeds its full-scale range by more than 10 psia (typical;
set point and pressure unit may vary).
Corrective Action:
• The parameters have exceeded the normal operating range. From
the User Interface Panel, check that the full-scale range is correct for
the current sample. If Manifold or Aspirator pressure alarms persist
during normal operation, contact the factory. A range change and
recalibration may be required.
Internal error This alarm condition indicates that the analyzer has detected a serious
malfunction.
Corrective Action:
Take appropriate safety precautions, open the Electronics Enclosure
door and:
• Check all of the ribbon cables between boards for proper connections
and inspect them for damage (cuts, nicks, burn marks, etc.). For
cable connection locations, refer to the Electronics Enclosure Wiring
Diagram in the Appendix.
• Contact AMETEK for assistance.
Failed communications to the Analog board
This alarm condition indicates that the MCU board cannot establish
reliable communications with the Analog board.
Corrective Action:
Take appropriate safety precautions, open the Electronics Enclosure
door and:
• Check the ribbon cable (Cable 3) between the MCU board (P3) and
Analog board (J101) – both boards mounted on the Electronics
Enclosure door – for proper connections and inspect it for damage
(cuts, nicks, burn marks, etc.). For cable connection locations, refer to
the Electronics Enclosure Wiring Diagram in the Appendix.
• One or both boards may need to be replaced. Contact AMETEK for
assistance.
Failed communications to the Relay board
This alarm condition indicates that the MCU board cannot establish
reliable communications with the Relay board.
Corrective Action:
Take appropriate safety precautions, open the Electronics Enclosure
door and:
• Check the at cable (Cable 3) between the MCU board (P3, on
the Electronics Enclosure door) and Relay board (J101, on the
Electronics Enclosure backpan) for proper connections and inspect
it for damage (cuts, nicks, burn marks, etc.). For cable connection
locations, refer to the Electronics Enclosure Wiring Diagram in the
Appendix.
• One or both boards may need to be replaced. Contact AMETEK for
assistance.
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