Olympus CHA-P Gebrauchsanweisung - Seite 18
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Troubles
Causes
_
Remedies
(c)
The light flickers and the
intensity is unstable.
The mains voltage is unstable.
Use a variable voltage transformer.
|
The filament of the bulb is likely |
to burn out.
Replace the bulb.
Loose electrical connection.
(d)
Fuse burns out too often.
The fuse is not a standard fuse.
|
|
|
]
Secure the connection.
|
|
Use a standard fuse.
|
The
voltage selector switch is not
matched
to the mains voltage.
Match
the
switch
to
the
mains
voltage.
(e)
Reduced bulb life.
The
voltage selector switch is not | Match
the
selector
switch to the
matched
to the mains voltage.
mains voltage.
The bulb is not a standard bulb.
Use a standard bulb.
Mains voltage is too high.
Use variable voltage transformer.
3. Focusing
(a)
Coarse adjustment is too
tight.
Tension adjustment ring is tighten-
ed too much.
Loosen the tension adjustment ring
properly.
The user is trying to raise the stage
over
the
upper
focusing
limit
imposed by the engaged pre-focus-
ing lever.
Unlock the pre-focusing lever.
(b) The stage drops and the
specimen
goes
out
of
The tension adjustment ring is too
loose.
Tighten the ring properly.
focus.
(c)
The stage cannot
be raised | Pre-focusing
lever
is engaged
in | Unlock the pre-focusing lever.
to the upper limit.
lower than focusing position.
(d)
The stage cannot be low- | The
condenser
mount
is lowered | Raise the condenser mount.
ered
to the lower limit | too much.
of
the
working
range.
(e)
The
objective front lens | The
specimen
is mounted
on the | Reverse the specimen.
hits against the specimen.
stage upside down.
4. Observation Tube
(a)
Incomplete binocular vi-
sion.
Interpupillary distance is not cor-
rectly adjusted.
Correct the interpupillary distance.
15