OPTO-EDU A13.0905, Instruction Manual

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The performance of the microscope can’t be made fully because of unfamiliar using, this table
will give some advices.
Trouble Cause Remedy
1. Optical parts
⑴
bulb works, but
the light is not
enough
Field diaphragm is not enough large Turn it larger
The knob for brightness is too low Adjust to suitable
The polarizer and analyzer is pulled
inside
Take them off
⑵
the edge of field
dark or not equal
Nosepiece is not fixed Fix the nosepiece
Dirt on lens or eyepiece or objective Clean them
Filter, polarizer or analyzer are not at
right position
Pull the slides in or pull in
the light path selection pole
⑶
dirt inside of
field
Dirt on specimen Clean specimen
Dirt on lenses Clean lenses
⑷
image blur
Slide cover on sample Take the cover away
Sample is not upright to objective Adjust the sample
Nosepiece is not fixed Fix the nosepiece
Aperture diaphragm opened too large Adjust it
Dirt on lens of eyepiece Clean it
⑸
image blur
somewhere or
image moving
during focusing
Sample is not settled correctly Set it again
Nosepiece is not fixed Fix the nosepiece
⑹
eye tired easily
or double image
Interpupillary is not correct Adjust interpupillary
Diopter is not correct Adjust diopter
Not the same magnification for both
eyepiece
Use same eyepiece
A13.0905