Assembly of field diaphragm *
To enable Koehler illumination when using con-
densers 0.53 S23 and 0.90 S1, a field diaphragm
has to be assembled. Insert the field diaphragm
module (50.1) into the mount (Fig. 50) from below.
The diaphragm adjustment (50.2) should point in
the direction of the tube. Secure with clamp
screw (50.3).
Assembly of filters and filter holder
The Leica DM IRM is equipped with a holder with
spaces for 3 filters with 40 mm diameter.
The filters are already fitted into the holder at the
factory. If you are retrofitting filters yourself,
assemble as follows:
– Slacken the clamp screws (Fig. 51.1) and re-
move the filter holder.
– Put the filters into the holder (Fig. 52).
– Mount the filter holder onto the transmitted
light illumination column and secure in position
with the clamp screws.
Connect the TL illumination to the integrated
power supply via the socket (3.2). Then connect
the microscope to the appliance cable (3.4) and
connect to the mains.
34
Fig. 49
Assembly of 0.53 S23 condenser
1
Dovetail guide of the condenser,
2
Slide changer of conden-
ser,
3
Aperture diaphragm adjustment,
4
Condenser top 0.53
S23,
5
Condenser clamp screw
1
2
5
3
4
