Applied Biosystems 7900HT User Manual page 275

Applied Biosystems 7900HT Fast Real-Time PCR System and SDS Enterprise Database User Guide
5. Using the Rotary Adjustment arrows, adjust the rotational position of the
gripper so that it is centered over the input stack and will not contact the sides
when lowered.
• To move the Plate Handler arm clockwise, click the up arrow.
• To move the Plate Handler arm counter-clockwise, click the down arrow.
6. Using the Vertical Positioning commands, carefully lower the Plate Handler
arm into the stack. Adjust the Rotary Adjustment value as needed to center the
gripper inside the stack.
7. After the gripper is centered inside the stack, click
The Plate Handler arm lowers upon the plate.
Confirm the following:
• the plate is in the middle of the gripper span
• the plate sensor switch is contacting the plate
• the gripper and plate do not contact the side of the stack
8. Click
The gripper grips the plate between its fingers.
9. Select
The Plate Handler raises the arm to its highest position. If the plate contacts the
sides of the stack, re-adjust the rotary position of the Plate Handler arm until the
plate moves freely in the stack.
Contact between the plate and the stack or all stacks may be unavoidable.
Note:
However, try to minimize the contact as much as possible.
10. Using the Vertical Positioning commands, raise and lower the Plate Handler arm
several times to check the alignment.
11. Lower the Plate Handler arm to the bottom of the plate stack, click
and click .
The software records the rotary position for the Zymark position 4
(input stack 1).
12. Click
The gripper releases the plate.
Up arrow (moves the arm clockwise)
Down arrow (moves the arm counter-clockwise)
.
.
.
September 1, 2004 11:39 am, CH_Maintenance.fm
Aligning the Plate Handler
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DRAFT
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