AmScope B/T660A Podręcznik użytkownika - Strona 18
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Common Issues
Symptom
Cause
The nosepiece if misaligned
One side of the field
of view is darker
Stains or dust has accumulated on the condenser,
objective, eyepieces, or base lens
Stains, dust, or dirt has accumulated on the speci-
Obstructions are
observed in the field
men
of view
Stains, dust, or dirt have accumulated on the lens
There is no cover slip on the slide
Unclear Image
The cover slip is not standard sized
The immersion oil has accumulated on the dry
objective
No immersion oil is used with the 100x objective
Air bubble in the immersion oil
Used wrong oil
The aperture is no open to an appropriate diam-
eter
Stain or dust has accumulated on the lens in the
inlet of the head
The condenser is not in the right position
One side of the field
The specimen slide is not fixed
of view is dark or the
The nosepiece is not in the right position
image moves while
focusing
The iris diaphragm is not big enough
The field of view is not
bright enough
The condenser is not in the right position
Stains, dust, or dirt has accumulated on the con-
denser, objective, eyepieces, or base lens
Remedy
OPTICAL ISSUES
Turn the nosepiece until it clicks into place
Clean all lenses with lens cleaner or a lint free non-
abrasive cloth
Clean the slide or use a new specimen if sample is
destroyed
Clean the lens
Add a cover slip. The objectives are designed for use
with a 0.17mm cover slip, so it is a requirement to
use one for proper images.
Replace the cover slip with the appropriate 0.17mm
thickness slip
Thoroughly clean the objective lens with lens clean-
er or a lint free nonabrasive cloth
Use immersion oil for better clarity and resolution
Pop the air bubble
Use standard Type A or Type B cedarwood oil
Adjust the aperture to have the light just larger than
the size of the condenser
Clean the lens with lens cleaner or a nonabrasive
lint free cloth, as well as spray with compressed air
Adjust condenser height to the top of the travel
range, then adjust down to focus image
Secure the slide to the stage with clips
Turn the nosepiece until it clicks into place
Adjust the iris diaphragm to allow the light to be
just larger than the condenser. There is one on the
base lens with the illuminator and one on the con-
denser.
Adjust condenser height to the top of the travel
range, then adjust down to focus image
Thoroughly clean tall lenses with lens cleaner or a
lint free nonabrasive cloth
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