EXC-350 MICROSCOPE SERIES
ACCU-SCOPE
®
73 Mall Drive,
Commack, NY 11725 • 631-864-1000 • www.accu-scope.com
19
TROUBLESHOOTING
Under certain conditions, performance of this unit may be adversely affected by factors other than defects. If a
problem occurs, please review the following list and take remedial action as needed. If you cannot solve the
problem after checking the entire list, please contact your local dealer for assistance.
OPTICAL
Problem
Cause
Corrective Measure
Darkness at the periphery or
uneven brightness of view field
Revolving nosepiece not in
click stop position
Revolve the nosepiece to click
stop position by swinging the
objective correctly into the
optical path
Dirt or dust on the view field
Dirt or dust on the lens -
eyepiece, condenser, objective,
collector lens or specimen
Clean the lens
Poor image quality
No cover glass attached to the
slide
Cover glass is too thick or thin
Slide maybe upside down
Immersion oil is on a dry
objective (especially the 40xR)
No immersion oil used
with100xR objective
Air bubbles in immersion oil
Condenser aperture is closed
or open too much
Condenser is positioned too
low
Attach a 0.17mm cover glass
Use a cover glass of the
appropriate thickness
(0.17mm)
Turn slide over so the cover
glass faces up
Check the objectives, clean if
necessary
Use immersion oil
Remove bubbles
Open or close properly
Position the condenser slightly
lower than the upper limit
Summary of Contents for EXC-350 Series
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