Chapter 8 Troubleshooting
1 Optical
37
8
Poor image quality (low resolution, contrast too low or too high)
Causes
Corrective
Measures
No cover glass is attached to the slide.
Attach a cover glass 0.17 mm thick.
Cover glass is too thick or too thin.
Use a cover glass of the specified
thickness (0.17 mm).
Slide is upside down.
Turn over the slide so that the cover
glass faces up.
Lenses or specimen are dirty or dusty.
Move either “stage, condenser, objective
or field lens unit” following the causes
described in “Dirt or dust in the
viewfield.” and check which parts are
dirty, then clean them as appropriate.
Aperture diaphragm and field diaphragm
is opened or closed too far.
Close or open properly. (P.15, 18)
Condenser position is not correct.
If the microscope is equipped with a
field diaphragm, correct positioning so
that the field diaphragm image is
focused on the specimen surface. (P.14)
If the microscope is not equipped with a
field diaphragm, position the condenser
slightly lower than the upper limit.
No immersion oil is applied to the tip of
the oil-immersion objective.
Apply Nikon immersion oil to the
objective. (P.22)
Nikon immersion oil is not used for
oil-immersion observation.
Use Nikon immersion oil. (P.22)
Air bubbles in immersion oil.
Remove bubbles. (P.22)
Immersion oil adhering to the tip of the
dry type objective (especially 40x
objective).
Clean the objective. (P.23)
Correction ring of objective is not in
right position (when using objectives
with correction rings).
Adjust the position suitable for the cover
glass.
No-cover-glass-objective is used for the
specimen with the cover glass.
Use the standard objective for cover
glassed specimen.
Summary of Contents for ECLIPSE E200 MV Series
Page 1: ...Microscope ECLIPSE E200 MV Series E200LED MV Series Instructions M588E 11 10 NC 1 1 2 ...
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