Olympus CHA Kullanım Kılavuzu - Sayfa 14
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Troubles
Causes
Remedies
c) Light fl ickers and
the in·
Mains voltage is unstable.
Use a voltage stabilizer.
tensity is unstable.
Filament
of the bulb is likely to
Replace the bulb.
burn out.
Loose electrical connection.
Secure the connection.
dl Fuse burns out too often.
Fuse is not a standard fuse.
Use a standard fuse.
Voltage
selector
switch
is not
Set the switch
to match the mains
matched with the mains voltage.
voltage.
e) Bulb does not light.
Bulb is burned out.
Replace the bulb.
Loose electrical connection.
Secure the connection.
f) Reduced bulb life.
Voltage
selector
switch
is not
Set the
selector switch to match
matched with the mains \loltage.
the mains voltage.
Bulb is not a standard one.
Use a standard bulb.
Bulb was over vol
ted
too long.
Reduce bulb voltage.
3.
Focusing
a)
Coarse adjustment is too
Tension adjustment ring is tighten-
Loosen the tension adjustment ring
tight.
ed too much.
slightly.
User is trying to raise the stage, pas-
Unlock the pre-focusing lever.
sing over the upper focusing limit
imposed by the engaged pre-focus-
ing lever.
b)
Stage drops and the speci-
Tension
adjustment
ring
is too
Tighten the ring slightly.
men goes out of focus.
loose.
c)
Stage cannot be raised
to
Pre-focusing lever
is engaged in
Unlock the pre·focusing lever.
the upper limit.
lower than focusing position.
dl Stage cannot be
lowered
Substage is lowered to much.
Raise the substage.
to the lower limit
of the
working range.
el
Objective front lens touch-
Specimen is mounted on the stage
Reverse the specimen.
es the specimen.
upside down.
4.
Binocular Observation Tube
al
Incomplete binocular vi-
I nterpupillary distance
is
not cor-
Correct the interpupillary distance.
sion.
rectlyadjusted.
Diopter adjustment is incomplete.
Complete the diopter adjustment.
Right and left
eyepieces
are not
Use a pair of matched eyepieces.
matched.
User is unaccustomed to binocular
Prior to looking at the image of the
vision.
specimen, try to look at the entire
field of view, or look at a far away
object before resuming microscopic
observation.