Messages Part 1. Not Ready messages
Detector not ready
242
• If the temperature setpoint is high enough but the detector is unable to reach
it, the heater may have failed or the sensor or mainboard may be bad. Contact
your Agilent service representative.
Front det igniting
Back det igniting
The GC is not ready while the FID or FPD is going through the flame ignition
sequence. The messages clear if the detector is turned off.
If the FID or FPD is unable to ignite, the detector may eventually shutdown. See
the FID or FPD section of the Detectors volume.
Front det adjusting
Back det adjusting
The GC is not ready because the NPD or ECD is adjusting its baseline to reach
the offset (FID) or output (ECD) setpoint. The ECD adjustment is usually
complete in 30 seconds. The NPD may require an hour to adjust.
The NPD may be unable to reach the setpoint if there is contamination in the
system (for example, if the gas is not pure enough or the bead is damp) or if the
bead is worn out. If it cannot reach the setpoint, you will not receive an error
message; the GC simply does not become ready.
Turning the detector off clears the message.
Front det equib time
Back det equib time
The NPD has completed adjusting the offset and is waiting for the value to remain
at the setpoint for the equilibration time.
The NPD may not be able to equilibrate if the system is contaminated or the
bead is worn out. In addition, changes in the room temperature could prevent
equilibration. The GC becomes ready if the detector is turned off.
You can change the equilibration time from the Detector control menu.
Front det shutdown
Back det shutdown
The FID, FPD, NPD, or TCD shut down if they experience a pneumatics failure
or if the TCD experiences a filament failure.
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