5. Assembling the microscope – condenser
Assembling light rings
• Switch the microscope off.
• Remove the condenser door (Fig. 36.1). The light ring is in-
serted into one of the large receptacles of the condenser
disk featuring guide grooves.
• Using the adjusting key, turn the right centering screw
of the condenser disk (Fig. 37.2) all the way back. In or-
der to prevent the condenser disk from rotating, insert
the adjusting key (Fig. 37.2) into the left centering screw
of the disk. This may protrude
a maximum of 1 mm
into the opening.
Insert the light rings for phase contrast (marked with the
identification numbers 0, 1, 2 and 3) and the S focal intercept
of the corresponding condenser head) and DF diaphragm
(marked with D for dark field and the S focal intercept of
the corresponding condenser head) into the receptacle drill
holes of the turret disk as follows:
• Select an opening and check to ensure that both fasten-
ing screws are loose enough so that they are no longer
protruding into the opening. Move the desired light ring
opening into the beam path opening to adjust the screws.
Now, you can turn the screws using both adjusting keys.
• Now, pick up the special condenser clamp (Fig. 37.1).
• If possible, install light rings 0 to 3 in ascending order.
You will find numbering for the openings on the edge of
the gear rim (4 large openings: 1-4; 3 small openings: 5-7).
Fig. 36: Condenser
1
Condenser door
2
Centering hole
1
2
Fig. 37: Opened condenser
1
Condenser clamp
2
Adjusting key
1
1
2
25
Summary of Contents for DMi8 A
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