www.microscopenet.com
- 7 -
1) Turn the condenser focus knob (20) to raise or lower the condenser (22).
2) Raise the condenser (22) when using high power objectives and lower it when using
low power objectives.
Note:
The centering of the condenser and the light axes of the objective are factory
adjusted. Do not attempt re-adjustment.
The highest position of the condenser has been factory adjusted. Do not attempt
re-adjustment.
3.7 Adjusting Kohler illumination
1) Connect the power cord and turn on the main switch.
2) Have the specimen in focus.
3) Close the field diaphragm (24) so that the edges of the field diaphragm show in the
field of view.
4) Turn the condenser focus knob (20) to make the image of field diaphragm edges
clear
5) Adjust the centering screws (23) to make the image of field diaphragm edges in the
view center.
6) Open the field diaphragm (24) so that its edges are just out of the view field.
7) Adjust the aperture iris diaphragm lever (19) to get proper contrast of the specimen.
8) Adjust the intensity dial (17) to get proper light intensity.
3.8 Adjusting focus tension
The tension has been pre-set at the factory. If the mechanical stage drops by itself,
rotate the tension adjustment collar (13) located inside the focus knob (14) on the
power switch side until the tension is in maintained.
