Perkin-Elmer STA 6000, Installation And Hardware Manual

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70 . STA 6000 Installation and Hardware GuideSTA 6000 Installation and Hardware Guide
AS 8000 Autosampler Gripper Alignment
The autosampler is aligned at the factory. However, if you install a reference pan into your
DSC instrument or change the sample thermocouple of your TGA instrument, change the
sensor, or if the gripper does not grasp the sample pans correctly, you should perform a
gripper alignment procedure.
1. Start the procedure from the Autosampler Control dialog box which is displayed by
clicking the Autosampler Control button on the control panel of your instrument.
Click
Align
to open the Autosampler Alignment Wizard.
NOTE: When running an autosampler alignment, make sure that the temperature is 22 °C
(ambient temperature). If the temperature is too high the grippers will not align.
2. The first screen informs you that the upper furnace lid should be in place on top of the
furnace access hole for either parent instrument. The lower furnace lid for the DSC
4000 or 6000 should be in its place on the ring. It is not necessary to have sample pans
in positions 12 and 33. If you wish to use the previous calibration's values as a start for
this calibration, click on the radio button. (The calibration values are stored in the
firmware on the AS 8000 controller board.) Otherwise, the default values will be used to
start. Click
Next
to continue.
3. The gripper moves from the home position to location 12. The buttons in the next
wizard are used to move the gripper with respect to the dimple of location 12 so that
the fingers are even around the dimple. You also have to adjust the height of the
fingers above the tray surface. There should be only 0.1 mm between the tray and the
finger. Use the buttons on the wizard to move the gripper up and down and left and
right. When satisfied with the positioning, click
Next
. The gripper swings around to
position 33.
4. Do the same thing for position 33 as you did for 12. Click
Next
.
5. The last wizard screen is displayed. Click
Finish
to exit from the Autosampler Alignment
Wizard and return to the Autosampler Control dialog box.
NOTE: After you complete the alignment procedure, check your purge gas. If the purge gas
was turned off during the alignment procedure, turn the purge gas back on.