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6.
Troubleshooting
Depending on how you use, the performance of this microscope may not be exhibited, though they are not failure. If
problems occur, please review the following list and take remedial action as needed.
If you cannot improve the phenomena after checking the entire list, please contact us for assistance.
6.1 Optical systems
Phenomena
Even though the lamp lights, the
field of view is dark.
Though the brightness control
knob or the light volume
adjustment dial is rotated, the
illumination does not become
brighter.
The peripheral area of the field of
view becomes dark. Or, the
brightness of the field of view is
not even.
Dust or dirt is visible in the field of
view.
The observation image glares.
The observation image is viewed in
white haziness or not visible
clearly.
6. Troubleshooting
Cause
The aperture diaphragm and the
field diaphragm are not opened
sufficiently.
The analyzer or the polarizer is in
the light path.
Light path selection lever of the
trinocular tube is at the
position.
The observation method selector
knob or lever or the turret is at the
halfway position.
The shutter is engaged in the light
path.
The halogen bulb or the mercury
burner is burned out.
The light path selection lever of the
trinocular tube is not stopped at
the correct position.
The observation method selector
knob or lever or the turret is at the
halfway position.
The objective is not correctly
engaged in the light path.
The nosepiece is not attached
correctly.
The filter is not engaged in the
light path correctly.
The analyzer and the polarizer are
not inserted correctly.
The eyepiece, the tip of the
objective or the sample is dirty.
The aperture diaphragm is
narrowed down too much.
The objective for UIS2(UIS) series is
not used.
The dummy slider is not inserted in
the nosepiece.
Remedy
Open the aperture diaphragm
sufficiently, and open the field
diaphragm until the field
diaphragm circumscribes the field
of view.
Remove the analyzer or the
polarizer from the light path.
Set the light path selection lever of
the trinocular tube to the
or the
position.
Select the observation method
selector knob or lever or the turret
surely.
Remove the shutter from the light
path.
Replace the halogen bulb or the
mercury burner.
Stop the light path selection lever
of the trinocular tube at the
position where the clicking sound
is heard.
Select the observation method
selector knob or lever or the turret
surely.
Turn the nosepiece until the
clicking sound is heard and engage
the objective in the light path.
Push in the nosepiece along the
mounting dovetail until it touches
the end, and secure it.
Stop the filter at the position
where the clicking sound is heard.
Engage the analyzer and the
polarizer in the light path correctly.
Clean them sufficiently.
Adjust the aperture diaphragm
according to the numerical
aperture of the objective to use.
Replace with the objective for UIS2
(UIS) series.
Insert the dummy slider in the
nosepiece.
Reference
page
28
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6.1 Optical systems
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