Agilent Technologies 6890 Series

21 of 22
Jun 2001
Error Codes and Internal Diagnostics
Agilent 6890 Gas Chromatograph Service Manual
Faults 850
Fault 279—Pneumatics aux: invalid constants from factory
Fault 279—Pneumatics aux: invalid constants from factory
Status message: P aux bad fact cal
The aux pneumatics module’s calibration is invalid.
Fault 280—F inlet read/write failure. Module is unusable.
Fault 281—B inlet read/write failure. Module is unusable.
Status message: F inlet i/o failure or B inlet i/o failure
The EPC module is malfunctioning. Replace the module.
Fault 282—F det read/write failure. Module is unusable.
Fault 283—B det read/write failure. Module is unusable.
Status message: F det i/o failure or B det i/o failure
The EPC module is malfunctioning. Replace the module.
Fault 284—Pneu aux read/write failure. Module is unusable.
Status message: Pneu aux i/o failure
The EPC module is malfunctioning. Replace the module.
Fault 285—Front detector offset adjustment failed
Fault 286—Back detector offset adjustment failed
Status message: F det adjust failure or B det adjust failure
An ECD or NPD detector has failed to successfully achieve the target offset
setpoint within the adjustment range. The instrument will not be ready until
“Adjust Offset” is turned Off or On.
Fault 287—F OIM not installed
Fault 288—B OIM not installed
The OIM module is required by the method but is not present.