Operation
Running the samples
69
Running the samples
This section describes starting and stopping a run or sequence and the
movements of the automatic liquid sampler during a run.
Starting a run or sequence
After completing the checklist above, start the run or sequence by pressing the
start button on the injector or entering the appropriate command at your
controlling device.
Stopping or interrupting a run or sequence
The following events interrupt a run:
1. The power to the controller or controlling device fails.
2. You press the stop button or Stop/Abort from a ChemStation.
3. The sampler recognizes a safety or operator fault, such as:
• You open the syringe access door.
• The tray gripper drops a sample vial.
• The syringe needle hits the metal side of the crimp cap.
The sampler responds to these interruptions differently depending on the
controlling device. With standalone control, any of the interruptions causes the
automatic liquid sampler to stop and abort a sequence.
With the 3396 integrator and INET communications, power failures only
interrupt the sequence. The integrator recovers and restarts the sequence with
the last sample run on the automatic liquid sampler. If the interruption is
caused by number 2 or 3, the run is aborted, and the sequence must be
restarted.
If the interruption was caused by a problem that the sampler recognizes, it
provides you with some feedback by a combination of flashing LED indicators
or error messages or a ChemStation message. For more information, see
chapter 5, “Preventive Maintenance and Troubleshooting.”
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