Olympus CHA-P Gebruiksaanwijzing - Pagina 16
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Vil. TROUBLESHOOTING
Troubles
Causes
Remedies
1. Optical System
(a) With
the
illuminator
switched
on,
the
field
of view cannot be seen.
The
condenser
is lowerd
exces-
sively.
Raise the condenser to the upper
limit.
Analyzer
and
polarizer are in the
"crossed
filter" position
("0:0").
Set them at the position "0:90" or
"90:0".
(b)
The
field of view is cut | The nosepiece is not click stopped. | Slightly
rotate the nosepiece until
off or illuminated irreg-
it clicks into position.
ularly.
The
condenser
is
not
correctly | Re-insert the condenser all the way.
mounted on the ring mount.
The
sensitive tint plate is stopped | Push the plate all the way until it
midway.
clicks.
In case of orthoscopic observation, | Swing
it out of the light path.
the condenser top lens stays in the
light path or stops midway.
(ο)
Dust or dirt is visible in | Dust or dirt on the glass surface at
the field of view.
the light exit on the base,
Dust on condenser top lens.
Clean off the dust or dirt.
Dirty specimens.
Dust on eyepiece.
(d) Excessive image contrast. | The
condenser
is lowered
exces- | Raise the condenser.
sively.
The aperture iris diaphragm is stop- | Open the diaphragm.
ped down excessively.
(e)
Resolution problems:
The objective is not correctly posi- | Slightly
rotate the nosepiece until
О
Image is not sharp.
tioned in the light path.
it clicks into position.
©
Insufficient contrast.
O
Image details lack defini-
tion.
Dirt on objective front lens.
Clean the objective.
The
immersion
objective
is used
without immersion oil.
Apply
immersion
oil.
Bubbles in the immersion oil.
Remove bubbles.
The Olympus designated oil is not
used.
Use the designated oil.
13