9
C. Loosen the locking screw and move the location screw forward or
backward to make the image of filament be in the center of paper;
D. If the image of filament not clear, you should adjust the condenser
adjusting handle to make the image clear;
E. If the image of filament offset the center of stage too far, you
should adjust the screw 3 and push it to side a little;
F. Install the 10X objective and put a piece of specimen on the stage
again;
G. Adjust the coarse/fine focusing knob to make the image of
specimen clear;
H. If brightness of field not equality, you can adjust the screw 3 or
move the lamp 2 slightly to make the brightness of field equality;
I. Turn the field diaphragm to minimum, adjust the field diaphragm
adjusting screw to make the center of field diaphragm and field be
superposition, then turn the field diaphragm until you can not see the
image of field diaphragm in the field;(Fig.2)
J. When use other magnification objective, you can adjust the aperture
diaphragm and the brightness of illumination to obtain satisfactory
contrast;
K. In order to obtain an image of good quality, you can use a piece of
brush glass or filters according to your need.
Luminous
hole
Filament
image
Fig.6
1
2
3
4
5
