Alignment Teaching - Agilent Technologies 1220 Infinity II LC User Manual

9
Test Functions and Calibration
Autosampler
Table 33
Step
Needle into Sample
Draw
Needle Up
Vial to Tray
Needle into Seat
Valve Mainpass
Reset

Alignment Teaching

ALS Alignment Teaching Description
The Alignment Teaching tool is required to compensate for small deviations in
positioning of the autosampler gripper that may occur after the module has
been disassembled for repair. It requires that a 100-vial tray be inserted into
the autosampler.
The alignment procedure uses two tray positions as reference points; because
the tray is rectangular, a two-point alignment is sufficient to correct all other
156
Injector step commands
Action
Lowers the needle into the sample.
Metering device draws the defined
injection volume.
Lifts the needle out of the vial.
Returns the selected vial to the tray
position.
Lowers the needle arm into the seat.
Switches the injection valve to the
mainpass position.
Resets the injector.
Comments
Command also positions the
vial at the seat, and lifts the
needle to the upper position.
Command also positions the
vial at the seat, lifts the
needle, and lowers the needle
into vial. Command can be
done more than once
(maximum draw volume of
100 µL cannot be exceeded).
Use Plunger Home to reset
the metering device.
Command also switches the
valve to bypass if it is not
already in that position.
Command also lifts the
needle to the upper position.
Command also returns the
vial to the tray position.
1220 Infinity II LC System User Manual