28
Problem
Cause
Remedy
Reference
page
6. The eyes feel tired
easily. The right
field of view
doesn’t overlay
with the left.
Interpupillary distance is wrong
Adjust the interpupillary distance
12
Diopter adjustment is wrong
Adjust the diopter
12
Eye not accustomed to
binocular observation
Do not goggle at the specimen
when observing. Observe the
entire view-field or look
something else before observing.
—
Mechanics
1. Coarse focusing
knob is too tight
Coarse tension adjust ring is too
tight
Loosen a little
10
2. the image is not in
the focal plane
when observing
Coarse tension adjust ring is too
loose
Tighten a little
10
Electrics
1. The bulb does not
work
No power supply
Check the connection of the
power cable
7
The bulb is not inserted correctly
Insert it correctly
4
The bulb burnt out
Replace it
4
2. The bulb burnt out
usually
Not use the specific bulb
Use the specific bulb
4
3. The field of view
is not bright
enough
Not use the specific bulb
Use the specific bulb
4
The use of light adjustment knob
is wrong
Adjust correctly
10
4. The bulb flickers
or the brightness
is not stable
The bulb is burn out soon
Replace it with a new one
4
The wire doesn’t connect all
right
Connect correctly
7
Photomicrography
1. The image is not
focus
Set shutter with 1/2s of OM
camera
Weak the brightness, and slow
down the shutter speed
21
2. Shoot the windows
or the lamp in the
camera lens
Stray light into the eyepieces or
the viewfinder of the camera
Cover the eyepieces and the
viewfinder of the camera
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