Nikon SMZ25 User Manual

Chapter 9 Troubleshooting
132
1
Image Viewing
Problem Cause Measure
Part of the field of view is
missing.
The field of view is
invisible.
The brightness of the field
of view is not uniform.
Images are dark.
Devices are not attached correctly. Attach the devices correctly.
The optical path switching lever of the tube is
positioned partway.
Position the lever correctly.
The nosepiece is not turned to the click
position or is placed in vertical view status.
Firmly turn the nosepiece to the click position for
stereoscopic view to bring the objective into the
optical path.
The objective and/or sample is contaminated
with dirt or dust.
Clean as needed.
An aperture diaphragm is stopped down too far. Open it to the proper size.
The light intensity of illumination is too low. Adjust the light intensity to an appropriate level.
Dirty or dusty field of view
The objective is contaminated with dirt or dust. Clean as needed.
The sample is contaminated with dirt or dust. Clean as needed.
One side of the images is
blurred or images are
distorted.
The stage is not attached horizontally. Attach the stage correctly.
A sample is tilted relative to the stage surface. Correctly reposition the sample on the stage.
2
Operation
Problem Cause Measure
Even when looking with
both eyes, an image does
not appear as a single
image.
The interpupillary distance has not been
adjusted.
Adjust the interpupillary distance.
The diopter has not been adjusted. Adjust the diopter distance.
Eyes become fatigued.
The interpupillary distance has not been
adjusted.
Adjust the interpupillary distance.
The diopter has not been adjusted. Adjust the diopter distance.
Brightness is inadequate. Adjust the brightness of illumination.
Changing magnification
results in large focal
deviation.
The diopter has not been adjusted. Adjust the diopter distance.
The focal deviation is large
when switching objectives.
The diopter has not been adjusted. Adjust the diopter distance.
The torque of the coarse
focus knob is heavy.
The torque adjustment ring has been
tightened too much.
Loosen the torque adjustment ring to some extent.
The focus becomes less
sharp over time. The
vertical position of the
zooming body may slide
due to various loads (such
as its own weight or the
load of the counterbalance
spring inside the focus
unit).
The torque adjustment ring is loosened too
much.
Tighten the torque adjustment ring to adjust the
torque to an appropriate level.

Nikon SMZ25 Specifications

General

Brand	Nikon
Model	SMZ25
Category	Microscope
Language	English