Olympus BHS-312 Manuel d'instruction - Page 19
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Vil. TROUBLESHOOTING
If you are unable to obtain full performance from your microscope, please consult with the
table below as pointers for troubleshooting.
Phenomenon
Cause
Remedy
1. Optical System
a) With illuminator switched
on,
the field of view
is
dark.
Field
iris
diaphragm
is not
opened sufficiently.
Open
diaphragm
to
proper
diameter.
Condenser
is
much,
lowered
too
Adjust condenser height.
Light
path
selector
lever
is
pulled out to C position.
Push in lever up to CV or V
Position.
b) Field of view is cut off or
illuminated irregularly.
Light
path
selector
lever
is
stopped midway.
Click it into proper position
according
to
your
purpose.
Nosepiece is not clicked into
place.
Slightly rotate nosepiece until
it clicks into place.
Nosepiece
mounted,
is
not
correctly
Insert nosepiece dovetail into
microscope frame all the way,
then lock.
The power of objective used
exceeds
the illumination
ca-
pacity of condenser.
Choose
a condenser to meet
your purpose.
Condenser
is not
centered.
Center condenser.
Field iris diaphragm is stopped
down excessively.
Open
diaphragm
diameter.
to proper
c) Dust or dirt is visible in
the field of view.
Dust,
etc. on
light exit lens.
Dust
on
condenser
top
lens.
Dirty specimen.
Dust on eyepiece.
Remove dust, etc.
Clean front lenses,
d)
Excessive image contrast.
Condenser
is
lowered
too | Adjust condenser height.
much.
Aperture
iris
diaphragm
is | Open
diaphragm
to
proper
stopped down excessively.
diameter.