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Part 2. The 7683 ALS The Automatic Liquid Sampler
Configuring the injector
Configuring the injector
Tower position
Injector cables are connected to either the INJ1 or INJ2 port on the
controller. This setpoint indicates which tower is on which inlet. With only one
injector, you do not have to move cables when you move the tower, merely
reconfigure the tower position.
Waste bottle position
The turret waste bottle positions are controlled by entering a value of:
• 0 for the A position only
• 1 for the B position only
• 2 to alternate between the two waste bottles
Nanoliter adapter enable
On the 6890 Plus, you can use this option to vary the injection volumes available
with your automatic liquid sampler. When On, injection volumes range from 2%
through 40% of syringe volume. When Off, the volume range is 10% through 50%.
Use B2 wash
On the 6890 Plus, 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.
• Use the same solvent in position B and in position B2. (This option does not
enable you to use a third solvent.)
• Use the three sample vial position turret.
• Because your solvent capacity is now 6 mL (2 mL each for solvent vials A,
B, and B2), you must use two waste vials. See Waste bottle position above.
• 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.
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