Nikon DIAPHOT 300 - Page 50

9. Mounting the condenser
• Mounting the system
condenser turret unit
First you assemble the system condenser
turret unit, as follows:
• ELWD condenser
Leave the hollow module (with mark
"A") in the turret as is. Set the modules
PhL to Ph3 (annular diaphragm
modules marked in red), into the
remaining module ports so that when
looked from above, their numbers
increase with clockwise rotation of the
turret. Fix each module with two
hexagonal socket head screws.
Screw the ELWD condenser lens
(marked in red) into the turret unit.
• LWD condenser
Set the supplementary lens into the
pocket of the diascopic illumination
unit, (page 24)
Remove the hollow module (with mark
“A") from the turret by loosening the
two hexagonal socket head screws.
(The removed module A is used for
bright-field microscopy.)
Set the modules PhL to Ph4 (annular
diaphragm modules marked in black),
into the module ports so that their
numbers increase with clockwise
rotation of the turret. Fix each module
with two hexagonal socket head
screws.
Screw the LWD condenser lens
(marked in white) into the turret unit.
Now you install the system condenser
turret unit to the microscope, as follows:
Using the hexagonal screwdriver, loosen
the condenser clamp screw (hexagonal
socket head screw) located deep in the
right-hand hole of the condenser holder.
(If the clamp screw is hidden and the
screwdriver cannot be inserted, loosen
the mount rotation clamp screw on the
left of the condenser holder, rotate the
mount center by hand until the pin at the
top of the mount aligns with the groove in
the mount center, and tighten the mount
rotation clamp screw to secure.)
Mount the system condenser turret unit
so that the mark on the module on the
optical path face the front side, and tighten
the clamp screw with the hexagonal
screwdriver to secure the turret unit.
• Mounting the ELWD condenser
Mounting procedures are the same as
above system condenser turret unit.
Using the hexagonal screwdriver, loosen
the condenser clamp screw (hexagonal
socket head screw) located deep in the
right-hand hole of the condenser holder.
(If the clamp screw is hidden and the
screwdriver cannot be inserted, loosen
the mount rotation clamp screw on the
left of the condenser holder, rotate the
mount center by hand until the pin at the
top of the mount aligns with the groove in
the mount center, and tighten the mount
rotation clamp screw to secure. See
above figure.)
Mount the condenser so that the marks
on the turret face to the front side, and
tighten the clamp screw with the
hexagonal screwdriver to secure the
condenser. (See above figure.)