Chapter 8 Troubleshooting; Optical - Nikon ECLIPSE E200 MV Series Instruction Manual

8
Troubleshooting
Misuse of this product may adversely affect performance, even if this product is properly
functional. If any of the following problems occurs, be sure to check the following table for
possible causes before requesting service.
If you detect problems that are not listed below or the problem still persists after measures are
taken, turn off the device and contact your nearest Nikon representative.

Optical

1
The specimen is dirty if dirt or dust
moves when specimen is moved on
stage.
The tip of the condenser lens is dirty if
dirt or dust goes in and out of view
when the condenser is moved up and
down while using low magnification
objective.
Objective is dirty if dirt or dust
disappears when the objective is
switched.
The field lens unit is dirty if dirt or dust
moves when field lens unit is moved
slightly.
The eyepiece is dirty if dirt or dust does
not move when the stage, condenser,
objective or field lens unit is moved.
Condenser position is not correct.
Aperture diaphragm is closed too far.
Dirt or dust in the viewfield.
Causes
36
Corrective Measures
Clean the specimen.
Clean the condenser. (P.44)
Clean the objective. (P.44)
Clean the field lens unit. (P.44)
Clean the eyepiece. (P.44)
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.
Open properly. (P.15)