Olympus CHA-P Instrukcja obsługi - Strona 18
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Troubles
( c )
The light flickers and the
intensity is unstable.
-
-
Causes
I
The voltage selector switch is not
Match the switch t o the mains
matched to the mains voltage.
voltage.
Remedies
- .
The mains voltage is unstable.
The filament o f the bulb is likely
to burn out.
(d) Fuse burns
out toooften.
(el
Reduced bulb life
Use a variable voltage transformer.
Replace the bulb.
I
I
Loose electrical connection.
Secure the connection.
The fuse is not
a
standard fuse.
1
Mains voltage i s too high.
1
Use variable voltage transformer.
Use a standard fuse.
-
The
voltage
selector switch is not
matched to the mains voltage.
i3.
Focusing
I
1
Match the selector switch to the'
mains voltage.
The bulb is not a standard bulb.
I
Use
a standard bulb.
I
The user
i s
trying t o raise the stage
I
,
over
the
upper
focusing
limit
imposed by the engaged pre-focus-
ing lever.
1
{a) C o a r ~ adjustment is too
1
Tension adjustment ring is tighten-
Loosen the tension adjustment ring
I
tight.
ed too much.
Unlock
the
pre-focusing lever.
I
properly.
(b)
The stage drops and the
specimen goes o u t of
focus.
Tighten the ring properly.
I
The tension
adjustmer~t
ring i s
too
loose.
{c) The stage cannot be raised
to
the upper limit.
Raise the condenser mount
( ( d l The stage cannot
be low-
I
ered t o the lower limit
of
the working range.
Pre-focusing lever is engaged in
lower than focusing position.
The
condenser
mount is
lowered
too much.
4. Observation Tube
I
I
Unlock the pre-focusing lever.
{e) The objective front
lens
hits against the specimen.
(a1 Incomplete binocular vi-
lnterpupillary distance is not cor-
Correct the interpupillary distance.
sion.
rectly adjusted.
- -
I -
LA
The specimen is mounted o n the
stage upside
down.
Reverse the specimen.