Rotary Microtome HM 355 S
MICROM International GmbH
Robert-Bosch-Str. 49
D- 69190 Walldorf
2-6-3 SETTING CUTTING SPEED
The desired cutting speed is set continuously on the
control knob (fig. 4.4) and shown in the middle of
the third line on the display (fig. 5.7) with values
from 0 - 99. To save time, the return travel speed is
enhanced in relation to the cutting speed, especially
for slow cutting speeds.
In addition, the maximum range of the cutting
speed can be chosen smaller for fine sectioning
than for trim sectioning. Switching over from trim
sectioning to fine sectioning via knob (fig. 4.3)
results in a reduction of the motorized cutting speed
according to the corresponding preselection.
To preselect the speed reduction, press the buttons
(fig. 5.3 and 5.8). The symbols for the speed >>>>
are then shown in the third line on the display.
>>>>>>>> = max. speed
> = min. speed
To select the desired speed, press the scroll button
(fig. 5.2).
To store the selected speed, press button (fig. 5.3).
CAUTION! Switching over from fine to trim
sectioning results in the corresponding speed
increase.
2-6-4 PUSH-IN HANDWHEEL
HANDLE
For safer working with the motorized cutting drive,
the handwheel handle can be pushed in.
To lock the handwheel handle, first take the handle
on its outer bush and push it inside.
To unlock the handle, turn off the motorized cutting
drive and press the interior locking knob of the
handwheel handle. The manual cutting drive can be
used now.
2-6-5 START AND STOP OF
CUTTING DRIVE
The cutting drive can be turned on and off by
means of the button (fig. 5.12) or the foot pedal.
For this, the functions <handwheel brake> and
<emergency stop> must not be activated. To stop
the cutting drive, the foot pedal can also be used.
The course function of the cutting drive results
from the selected cutting window, the selected
operating mode and the set cutting speed.
CAUTION! For your personal safety, push in the
handwheel handle before starting the motorized
cutting drive.
2-6-6 HANDWHEEL BRAKE
The microtome is equipped with a handwheel
brake. This way, unintended movements of the
specimen holder and knife carrier are avoided. This
reduces the danger of being injured while adjusting
specimen clamp and knife carrier.
CAUTION! When the instrument is turned off,
the handwheel brake cannot be activated.
First press button (fig. 5.12) to stop the motorized
cutting movement. Then activate the function
<handwheel brake> by means of the button (fig.
5.10). The red LED in the button (fig. 5.10) lights
up. Now, the motorized cutting drive cannot be
started by mistake! To release the handwheel
brake, press button (fig. 5.10) once more.
CAUTION! For your personal safety, the
<handwheel brake> should be turned on when
working on the specimen holder or knife carrier.
For this press button (fig. 5.10).
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