Gcm Processing Error Alarm; Bad Bead Alarm; No Pilot Valve Change Detected Alarm - ABB NGC8206 User Manual

4) Perform the
chapter. If the procedure fails to locate the problem, contact Totalflow technical
support following the procedure in the Introduction section of this manual.

6.3.17 GCM Processing Error Alarm

If the GCM Chrom Process alarm is in warning status, the following procedure will
step the user through the troubleshooting process. On occasion, these instructions
may detour the user to other procedures, and, when complete, they should return
to these procedures to continue.
6.3.17.1
This alarm is indicative of an error that stops the GCM application from signaling
the chrom application to process a chrom. The following internal errors could
instigate this alarm: communication response error, polling error, sequence error
and data error.
6.3.17.2
1) In the alarm log, check the frequency of the error. If multiple errors exist, place
the unit in hold and then launch a cycle.
2) If the alarms continue to register, perform a warm start.
3) When the unit completes the start-up diagnostics without error, place the unit in
run.
4) Following 2-3 cycles, verify that no new alarms are registering.

6.3.18 Bad Bead Alarm

If the Bad Bead alarm is in fault status, the following procedure will step the user
through the troubleshooting process. On occasion, these instructions may detour
the user to other procedures, and when complete, they should return to these
procedures to continue.
6.3.18.1
These alarms are indicative of problem with the GC module.
6.3.18.2
1) Following the
GC module.

6.3.19 No Pilot Valve Change Detected Alarm

If the No Pilot Valve Change Detected alarm is in warning status, the following
procedure will step the user through the troubleshooting process. On occasion,
these instructions may detour the user to other procedures, and, when complete,
they should return to these procedures to continue.
6.3.19.1
These alarms are indicative of a pressure regulator problem on the manifold.
During backflush, a valve is changed, but no disturbance is registered.
6.3.19.2
1) Verify the carrier gas bottle pressure is above 90 PSIG. If the pressure is below
90 PSIG, replace the carrier gas bottle. Otherwise, continue to the next step.
2) Verify the carrier gas bottle pressure regulator set point is 90 PSIG. If not, correct
the set point to 90 PSIG. Otherwise, continue to the next step.
3) Following the Manifold Replacement instructions in Chapter 4, Maintenance,
replace the manifold.
2101510 Rev. AG
Abnormal Calibration Gas Depletion
Description
Instructions
If alarms continue to register, call Totalflow technical support.
Description
Instructions
Replacing GC Module
Description
Instructions
procedure, found in this
instructions in Maintenance, replace the
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