Agilent Technologies 6850 Series II User Information page 52

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Auto injector with a sequence
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Sometimes you will want to change the number of samples in the sequence.
For example, the sequence is set up to run 10 samples but you only have 8 to
do. To change the Last Vial parameter in the sequence from the GC panel:
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3.
Sample valve with a sequence
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Sample valve with a run table
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Released: March 2004
Press Start. When the GC is ready, the injector begins its cycle, makes
1 injection from the vial in position 1, and issues an internal Start
command at the moment of injection.
Load the samples into sample vials. Place the vials in successive positions
of the injector turret. The Not Ready light can be on at this time. The
"Ready for sequence" message appears when the GC is ready, but it is not
necessary to wait for it.
Set up the injector sequence. See the Control Module or ChemStation/
Cerity Chemical documentation for details.
Press Start. When the GC is ready, the injector performs the analyses as
directed by the sequence.
Press Load. The Last Vial number is displayed.
Use the scroll keys (▲ and ▼) to change the number.
Press Load.
Set up the injector sequence. See the Control Module or ChemStation/
Cerity Chemical documentation for details.
The sample valve is in the Load state between runs. The Not Ready light
may be on during this period. Either connect a sample stream to the valve
for continuous flushing or use a gas syringe to flush the loop.
When the "Ready for sequence" message is displayed, press Start. The
valve changes to the Inject state and, after Inject min elapses, returns
to the Load state.
Create a Run Table entry to turn the valve ON shortly (0.01 min) after the
start of a run. Add a second entry to turn the valve OFF after enough time
has elapsed to sweep the sample on to the column.
Either connect a sample stream to the valve for continuous flushing or use
a gas syringe to flush the loop.
Press Start.
6850 Series II GC User Information
Daily Operation
To make a run
page 52 of 256