Varian 450-GC, User Manual

Page: 69 / 205

AutoSamplers
Varian, Inc. User Manual 450-GC Page: 113
Vial calibration
The Vial Calibration procedure will allow the AutoSampler/AutoInjector to learn
the tower and carrousel/tray positions so that the syringe is positioned directly
over the middle of the first vial in the sample-carrousel (Vial 0) or the middle of
the first 2 mL vial of the AutoInjector sample tray (Vial 1).
The CP-8400 may use a number of different sample vial form factors; however,
you should use all of the same vials for each session.
Mixing different vials is strongly discouraged. If you calibrate using one vial type
and then begin using another vial type with a different height, it is strongly
recommended that you recalibrate the Vial 0 Position to avoid bent needles and
other minor problems.
In order to accurately calibrate Vial positions use the calibration
tool (P/N: CP740889). The calibration tool simulates a standard
vial. The tool is used for both the CP-8400 and CP-8410
AutoSamplers.
The calibration tool can be placed (depending of the
carrousel/tray-material) in 2 different ways in the tray.
To assure consistent operation, always approach the final Tower
and Carrousel calibration po sition with CW (clockwi se) movements.
To help facilitate this rule, the carrousel will backup 10 steps when a
CCW (counterclockwise) action is selected but will move 1 step per
move action when a CW (clockwise) carrousel rotation i s s elected.
One O-ring visible
Two O-rings visible
CP-8410 (polymer tray)
calibration tool in Vial position 1 CP-8400 (metal carrousel)
calibration tool in Vial position 0