Leica OH4, Service Manual, Page: 185 / 264

Use
43 Leica M525 OH4 / Ref. 10 714 367 / Version -
Setting the focus manually
Warning 11
Danger of serious damage to tissue due to incorrect
manual adjustment of the working distance!
➩
Do not adjust the rotary button for manual setting of
the working distance while using the laser.
In case of failure of the focus motor, the focus can be adjusted
manually using rotary button (2).
➩
Turn rotary button (2) and set the focus as required.
Locking/releasing the focus
It is necessary to lock the focus when working at a
fixed distance or when using the laser.
➩
Press key (3).
The yellow LED (4) comes on and the focus is locked.
➩
Press key (3) again.
The yellow LED (4) goes out and the focus is released.
2
3 4
Setting the working distance (focus)
Warning 9
Danger of serious damage to tissue due to incorrect
working distance!
➩
When using lasers, always set the working distance of
the microscope to laser distance and lock the
microscope in position.
You can set the working distance with the footswitch/hand-
switch or with the "WD" adjustment bar in the "Main" menu of
the control unit.
Clicking the "+" or "-" key changes the working distance
in increments of one. Holding down the mouse button
with your finger changes the value in increments of
five.
You can adjust the focus motor speed in the "Speed"
menu.
Using the Reset WD button, the focus motor can be set
to the working distance which has been saved for the
current user (see page 46).
You can save the currently set working distance on the
"Main" screen of the control unit or read it off the
display (1) on the M525 optical carrier.
Warning 10
Danger to patient due to failure of the zoom motor!
➩
In case of failure of the zoom motor, the zoom can be
adjusted manually.
1