Flinn Basic Microscope Manual
continued
4
Troubleshooting
Symptom
Cause
Solution
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.
Lenses are dirty.
Clean the lens.
Stain or dust is observed in
the field of view.
Stains have accumulated on the specimen slide.
Clean the specimen.
Stains have accumulated on the lens.
Clean the lens.
Unclear image.
No cover slip on the specimen slide.
Add the cover slip.
The cover slip is not standard thickness.
Use a cover slip with 0.17mm thickness.
The specimen is facedown.
Turn it over.
The specimen slide is not fixed.
Fix with clips.
The image moves while
focusing.
The aperture is not large enough.
Rotate the disk diaphragm to allow more
light in.
The specimen is outside the cover slip.
Reset the cover slip.
The field of view is not
bright enough.
Stain or dust has accumulated on the con-
denser, objective, eyepieces, base lens.
Clean lens.
The objective touches the
cover slip while turn the
nosepiece.
The cover slip is facedown.
Turn the cover slip over.
The cover slip is not standard.
Use a cover slip with thickness of 0.17mm.
The light does not work.
No power to the light.
Check the connection of the power cable or
replace the batteries. Check the rating on the
power supply.
The bulb is not inserted correctly.
Reinsert the bulb.
The bulb burned out.
Replace it.
The bulb burned out too
soon.
The voltage is too high.
Use a 4.6 V power supply.
Use of the wrong bulb.
Replace with a correct one.
Limited 5-year warranty
Flinn Scientific warrants the microscope against manufacturers defect for five years from the date of purchase. Please contact
Flinn Scientific at [email protected] or 1-800-452-1261.
© 2016 Flinn Scientific, Inc. All Rights Reserved.
