-20-
5. Troubleshooting
MT-50
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
(1) The LED light
is bright, but it’s
dark in the field of
view.
Field diaphragm is not large enough.
Enlarge the field diaphragm.
Condenser is too low.
Adjust the condenser.
Condenser centered incorrectly.
Center the condenser.
(2) The side of the
field of view is
dark or not even.
The nosepiece is not in the right
position.
Turn the nosepiece into the
right position.
Stain or dust has accumulated on the
condenser, objective, eyepieces, and
base lens.
Clean the lens.
(3) Stain or dust is
observed in the
field of view.
Stains have accumulated on the
specimen.
Clean the specimen.
Stains have accumulated on the lens.
Clean the lens.
(4) Unclear image
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.
The condenser is not in the right
position.
Adjust the condenser.
(5) One side of the
field of view is
dark or the image
moves while
focusing.
The specimen slide is not fixed.
Fix with clips.
The nosepiece is not in the right
position.
Turn the nosepiece into the
right position.
Condenser centered incorrectly.
Center the condenser.
