Leica Biosystems VT1000 P - Manual (Page 24)

24 Operating Manual V 1.0 – 01/2010
5. Operation
The operating elements (continued)
This switch and its three switch positions (upper, center, lower) con-
trol the movement direction of the cutting head.
• Push the switch upwards to start the sectioning cycle. The sec-
tioning blade will advance forward at maximum speed when the
switch is held at its top position.
• As soon as the switch is released, it returns to the center position.
• The blade continues the feed movement with the default values for
SPEED and AMPLITUDE.
• At the end of the sectioning window, the movement direction of
the blade is reversed and the cutting head moves back. Reversing
stops when the rearmost "ready" position is reached.
• During the feed movement, the movement direction can be
reversed at any time by moving the switch to the lower position.
• Likewise, during the retraction movement, you can switch to infeed
by pushing the switch upwards.
DIRECTION switch
Switch position:
Upwards --> forwards
Downwards --> backwards
Rotary knob
SPEED
Using this rotary knob, you can change the relative speed of the cut-
ting head (feed movement) if the DIRECTION switch is in the FWD/
AUTO REV position.
• In the zero position (‘0‘), the blade does not move; in the ‘10‘ posi-
tion, it is moved at maximum speed (2 mm/s).
• For the positions in between, the speed is changed proportionally.
Fig. 30
Fig. 31
Only the feed rate can be changed; this is also possible during
the sectioning process.
The retraction speed is always the same.