
Operation
8.5 Switching from main to spare
illumination
WARNING
Failure of the illumination can be dangerous for
the patient!
X
If the main illuminator fails, switch to the auxiliary
illuminator immediately.
If a lamp is defective, the warning symbol for a defective lamp
flashes on the "Main" menu of the control panel.
• Replace the defective illumination at the next
opportunity.
• Never begin an operation with only one functioning
illumination unit.
• The slide button for the quick-change lamp mount must
be slid fully against its stop, otherwise the lamp will not
light.
X
Move the slide button for the quick-change lamp mount (4) to
the other side.
The auxiliary lamp will light up.
4
8.6 Setting the illumination type and
working distance
2
1
X
Set the approximate working distance by raising or lowering
the microscope with the handles (2).
X
Turn the rotary knob (1) clockwise.
Ambient lighting/6° illumination is no longer displayed.
Red reflex illumination/0° red reflex illumination is retained.
The 6° illumination can be adjusted with the rotary button (1) to
optimize red reflex and contrast. The 0° light will remain
permanently.
Leica M620 F20 / Ref. 10 714 371 / Version 01
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