Operation – Leica Biosystems RM2255 User Manual

Page 31

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

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.