Messages
Not Ready messages
Released: March 2004 6850 Series II GC User Information page 83 of 256
Undefined errors—Some error conditions that require service assistance do
not have individual messages. They produce the Undefined error message.
This usually indicates either a defective main board or GC firmware that is
obsolete for your present configuration. Check your instrument to determine
the present status of the heated zones, inlet, gases, and detector.
Not Ready messages
Table 22. Not Ready Messages
Temperature messages Comments
Aux, Detector, Inlet, or Oven
temperature
Zone has not equilibrated at setpoint or oven is OFF, Turn
oven ON and wait
Detector temp low Temp or temp setpoint below minimum required to avoid
damage, check setpoint. If setpoint OK, wait.
Detector messages
Detector H
2
, air, or makeup gas flow Flow is not at setpoint, check gas supply. If OK, wait.
Detector igniting Wait until ignition is done
Detector shutdown Pneumatics failure or TCD filament failure
Inlet messages
Inlet flow or pressure Not at setpoint, check gas supply. If OK, wait.
Inlet purging Press Prep Run to go ready
Inlet pulse inactive Press Prep Run to go ready
Gas saver active Press Prep Run to go ready
Valve messages
Multiposition valve Valve has not reached specified position, check BCD cable
Sampling valve Valve is ON but Inject Time has not elapsed and not in run, or
valve is OFF but Load Time has not ended
Auxiliary EPC messages
Aux N pressure Channel N not at setpoint, check gas supply. If OK, wait.
Miscellaneous messages
Diagnostics mode GC is not operating normally because of testing
Test in progress Wait for test to end or terminate test
Host system Host such as ChemStation or Cerity Chemical is not ready
External device Device on REMOTE cable is not ready
Power on in progress Wait
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