Agilent Technologies 6850 Series II User Information page 82

Method mismatch—The active method has parameters that do not match the
present GC configuration.
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Warning—A problem exists but the instrument will execute the run. The GC
emits one beep and a scrolling message appears in the top line of the display.
The GC can start the run and the warning disappears when a run starts.
Warnings are not logged.
Sequence warning—This set of warnings is listed alphabetically since they
are not numbered.
Service warning—These messages inform you when certain consumables,
such as the septum, have exhausted their useful life.
Shutdown—There is a hardware problem that could compromise the safety of
the user or damage the instrument. Before shutdown occurs, the GC emits a
series of warning beeps (pneumatics shutdowns only). After a time specific for
the component elapses, the component with the problem shuts down, the GC
emits one beep, and a warning message appears. The GC is Not Ready. The
error is not recorded in the run log.
Fault—Hardware problems exist that require user intervention. Depending on
the type of error, the GC emits no beep or a single beep. The Not Ready LED
lights and an error message appears. The error is recorded in the run log.
Two particular faults can shut down the entire GC: a pneumatics problem for a
component configured for hydrogen gas and a thermal runaway condition for
the GC oven. In these cases, the GC beeps continuously until you press the
Stop key.
Memory reset—All GC methods, the Run Log, and the Log Book are stored in
battery-backed GC memory. If the battery fails and power is turned off, this
data is lost and the warning appears when the GC is turned on. If you update
the GC firmware, this data is erased during the update and the warning appears
after restart.
Released: March 2004
If the mismatched parameter is set by the user, the method overwrites the
present value. For example, if the gas type presently configured differs
from the one in the method, the present gas type is overwritten with that
of the method.
If the mismatched parameter is hardware dependent, that part of the
method is ignored and the present setpoints remain. For example, if the
method is for a TCD detector but you have replaced it with an FID, the
method TCD information is ignored and the present FID parameters
remain.
6850 Series II GC User Information
Messages
Message types
page 82 of 256