Leica Biosystems RM2125 RTS - Manual (Page 12)

12 Instructions for Use, V2.1 – 10/2012
3. Instrument Components and Specifications
3.2 Instrument specifications
The Leica RM2125 RTS is a manually operated rotary microtome.
• The specimen feed system and stroke mechanism are equipped with
slack-free and maintenance-free cross roller bearings. They are
housed in a polymer housing and protected against dust just like the
coarse feed system.
• The handwheel can be locked into place in the upper position via the
handwheel handle. In addition, it is possible to lock the handwheel in
any position via the clamping lever on the baseplate.
• Sectioning is done manually by rotating the easy-to-move handwheel,
which is accurately balanced by means of a counterweight.
• The coarse feed is actuated via the coarse feed wheel on the left side
of the instrument. The user can select the coarse feed wheel direction
of rotation depending on the requirements (clockwise or counterclock-
wise).
• The section thickness is set via a rotary knob and can be read accu-
rately in the viewing window.
Section thickness setting of 0.5 to 60µm.
• The instrument has a slot cover that prevents section waste from
ingressing into the interior of the instrument.
• The instrument has a mechanical trimming function that is activated by
a key lever. Steps are possible from 10µm and 50µm.
• Another additional function is the specimen retraction, which protects
the knife and specimen. The user can switch the retraction function
ON or OFF.
When retracted, the specimen is drawn back 40 µm into the upper
end position after the sectioning stroke during the return movement.
Before the feed motion of the new section thickness, first it advances
by the retraction value.