Running Samples 7
Installation, Operation, and Maintenance 131
Part 2, Operation
Using the ALS Controller
When the ALS is on a 5890 GC:
• Pressing [Start] on the GC or controller begins the GC method. When the GC
is ready, the ALS controller begins the sequence programmed in the ALS
controller using the Agilent Automated Liquid Sampler Controller for 5890
GC software starting with the first sample vial in the range.
• Pressing [Stop] on the 5890 GC aborts the GC run, but does not stop the
ALS controller sequence. When the GC enters the ready state the ALS
controller continues with the next sample in its sequence. To stop the ALS
controller sequence you must press the [Stop] button on the front of the
controller.
• Pressing [Stop] on the ALS controller stops the sequence programmed into
the controller. This action does not stop the GC run. Pressing [Start] on
either the GC or ALS controller restarts the ALS controller vial sequence
from the first sample.
When the ALS controller is on a 6890A GC:
• [Start] on the G2912A ALS controller is disabled.
• Pressing [Start] on the 6890A GC starts the sequence.
• Pressing [Stop] on the G2912A ALS controller stops the ALS controller
sequence, and if the GC is waiting for a signal from the controller to start a
run, an error message is displayed on the GC. To resume the sequence, see
the following section on “Restarting an interrupted sequence" on page 132.
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