Leica Biosystems CM1950 - Manual (Page 31)

31 Leica CM1950 – Cryostat
Reasons:
1. To prevent section waste from falling into the
opening.
2. To prevent cold from escaping from the chamber.
3. To prevent moisture from penetrating the
chamber.
6. Installation
6.5.7 Inserting/changing the bacteria filter
6.5.8 Assembling the filter bag
Fig. 28
• Set the mark (A) of the extraction opening to
open (1) and pull it out. Plug the filter (3) into
the extraction hose connecting piece (3a) until
there is an audible click.
Now push the connected parts back into the
opening in the cryostat chamber (filter first) and
set it to the "closed" mark (2, Fig. 28 ).
1
3
3a
2
• To change the bacteria filter, follow the op-
posite procedure: press the filter to the right,
then pull it to the left and out of the tube.
• The filter must be changed approx. every
3 months (we recommend writing the date on
the filter using a marker).
Fig. 27
Fig. 29
A
E
L
The holder for the bacteria filter (optional) is vis-
ible in the front of the instrument.
• To insert the filter, hold it with one hand, press
on the right of the socket, then guide the filter
into the tube from the left.
The filter must be disposed of according
to valid laboratory specifications.
If completely defrosted, bacteria filters
and filter bags MUST be removed, as
melted coverslip mountant clogs the
extraction line. The bacteria filter ab-
sorbs the moisture during defrosting and
becomes unusable!
When not using the extraction, tightly
close the opening for the extraction
hose using the silicone stopper (E) in-
cluded in the scope of delivery.