Controlling the Sampler 4
Installation, Operation, and Maintenance 91
Part 2, Operation
For a 6890A or 6890 Plus, these settings are controlled by entering a setpoint
value of:
• 0 to disable the solvent saving feature resulting in a wash volume equal
to 80% of syringe volume.
• 1 for 50% of syringe volume wash
• 2 for 37% of syringe volume wash
• 3 for 25% of syringe volume wash
Nanoliter adapter—6890 GC only Use this option to vary the injection
volumes available with your automatic liquid sampler. When On, injection
volumes range from 2% through 50% of syringe volume. When Off, the volume
range is 10% through 50%.
Use B2 wash—G2613A This is only displayed if you have the 3-vial turret
installed in the G2613A injector. You can enable this option to use two 4 mL
vials of solvent B, increasing the number of runs you can make before refilling
solvent vials. Press the [On] button to enable B2 wash.
• Use the same solvent in position B and in position B2. (This option does
not enable you to use a third solvent.)
• When using solvent A and solvent B, both waste bottles are required.
• Your maximum solvent capacity is 6 mL (2 mL each for solvent vials A, B,
and B2).
• Configure each injector separately.
Note that the number of solvent B washes for each injection does not change.
The injector simply alternates use between the two solvent B vials.
This mode allows the number of solvent B washes to be twice that of the
solvent A washes.
Tower fan—Use the [On] or [Off] key to select fan usage.
In general, leave the fan On.
Setting sample tray setpoints on a 6890 GC
The sample tray delivers sample vials to the front and rear injectors according
to the defined sequence parameters. There are a separate set of sequence
parameters for each injector. The sample tray delivers vials to the front
injector before the rear injector. Stored sequences and bar code configurations
can be used to tell the sample tray where to deliver and retrieve sample vials.
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