Messages
Fault messages
Released: March 2004 6850 Series II GC User Information page 93 of 256
FAULT 208 0-1mV signal path fail
FAULT 210 Analog out path fail
Possible cause: Defective main board
Fault 208. The 0-1 mV out signal sent to a strip-chart recording device is
not within the acceptable range. The GC will not be ready.
Fault 210. The 1 V out signal sent to an integrator is not within the
acceptable range. The GC will not be ready.
Turn the instrument off and then on at least one time. If the error still occurs,
the main board is defective.
FAULT 212 Det electrometer
Possible causes: Poor cable connection between detector and detector board
Defective electrometer
Defective detector board
The electrometer, inside the detector, measures and amplifies the signal from
the detector. The signal is sent to the detector board, which converts it to
digital form. If the electrometer is out of specification, the detector will never
reach a ready state.
FAULT 214 Detector flame out
Possible causes: Hydrogen and/or air flow turned off
Hydrogen and/or air flow rates too low
Leak near the detector column fitting
Incorrect jet for the installed column
Change the Lit Offset to 2.0 (the default value)
The FID or FPD is not able to ignite or the flame is out (during a run). The
detector will try to ignite the flame several times. If it fails, the hydrogen, air,
and ignitor shut off, and the Fault message appears. The detector will be in a
not ready state.
FAULT 216 TCD filament open
Possible causes: Wires from detector not connected properly to detector board
Damaged ∆ PRT
Defective TCD cell
The TCD filament bridge voltage indicates that the filament resistance is too
high. The filament may be broken or worn thin from use, or the wires from the
TCD are not connected on the detector board, or the ∆ PRT is shorted. The
detector will not be ready until the condition is corrected.
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