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5. Troubleshooting
MT-40 Series
As the performance of microscope can’t play fully due to unfamiliar operations, the table below
can provide some solutions.
Problem
Cause
Solution
1. Optical Part
Field diaphragm is not large enough.
Enlarge the field diaphragm.
(1) The LED light
is bright, but it’s
dark in the field of
view.
Condenser is too low.
Adjust the condenser.
The nosepiece is not in the right
position.
Turn the nosepiece into the
right position.
(2) The side of the
field of view is
dark or not even.
Stain or dust has accumulated on the
condenser, objective, eyepieces, and
base lens.
Clean the lens.
Stains have accumulated on the
specimen.
Clean the specimen.
(3) Stain or dust is
observed in the
field of view.
Stains have accumulated on the lens.
Clean the lens.
No cover glass on the specimen slide.
Add the cover glass.
The cover glass is not standard.
Use a standard cover glass
with thickness 0.17mm.
The cover glass faces down.
Put the cover glass to face
up.
The immersion oil has accumulated on
the dry objective.
Clean thoroughly.
The immersion oil is not used for oil
objective 100XR.
Use immersion oil.
Air bubble in the immersion.
Get rid of the air bubble.
Use wrong immersion oil.
Use a correct one.
The aperture is not opened correctly.
Adjust the iris diaphragm.
Stain or dust has accumulated on the
lens in the inlet of the head.
Clean the lens.
(4) Unclear image
The condenser is not in the right
position.
Adjust the condenser.
The specimen slide is not fixed.
Fix with clips.
The nosepiece is not in the right
position.
Turn the nosepiece into the
right position.
(5) One side of the
field of view is
dark or the image
moves while
focusing.
Condenser centered incorrectly.
Center the condenser.
