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Adjusting the slit lamp
➩Move the slit lamp into middle position using the footswitch.
Assign the functions OCF2 pulse and OCF3 pulse on the
hand switch or foot switch used so that the slit lamp
can be moved to the right (OCF3) or left (OCF2) using
these two keys.
➩Rotate the prism into middle position.
➩Rotate the prism into both end positions and adjust the
magnification so that the slit remains in the image field to the
left and right.
➩Make sure that there is no obvious difference between the
prism end positions for lateral adjustment referring to the slit
image and the edge of the diaphragm.
End position I
middle position
Left-hand and right-hand of the arc there are two lock-
able stoppers (1) which may be adjusted individually by
the doctor. When a stopper is reached, it may be
circumnavigated by pressing the hand switch or foot
switch again.
Prism into
End position II
1
Leica M844 – Leica M820 / Ref. 10 713 294 / Version I
Emergency operation
If the motor of the prism is inoperative, the prism may be moved
by hand.
Dismounting the slit lamp
When dismounting the slit lamp, make sure that both
stoppers are in the bottom position.
Preparation for operation
29
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