Leica Biosystems RM2255 - Manual (Page 31)

29 Leica RM2255
5. Operation
Mode selection
• For selecting the mode, press the CUT MODE button on the control panel
until the green LED of the desired operating mode is displayed.
Manual sectioning mode
• Select ROCK operating mode.
• Turn the handwheel a short distance forwards and backwards for sec-
tioning (rocking mode).
Each change in the sense of rotation will be electronically detected and
automatically converted into an advance or retraction movement of the
specimen.
Sectioning modes
The microtome can be used both in manual and
motorized operation.
You can choose between four settings:
ROCK in manual mode as well as
CONT, SINGLE and STEP in motorized mode.
and
or
44
45
For safety reasons, when the instrument
is first switched on, none of the operat-
ing modes is active.
Fig. 18
In the manual sectioning mode, it is possible to use either the conventional method of
completing a full handwheel rotation or to work in the rocking mode ("Rock").
Start and stop motorized sectioning
• To start motorized sectioning, press the RUN/STOP and ENABLE buttons
simultaneously after selecting the desired operating mode.
• While the cutting motor is running, the yellow LED in the RUN/STOP key
lights up.
• To stop motorized sectioning, press RUN/STOP or ENABLE.
If both the green and the yellow LEDs in the RUN/STOP button are lit up,
the cutting motor is still running; however it will stop in the next upper end
position of the vertical stroke.