Olympus BHS-651P Instruction Manual - Page 21
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Troubles
( f ) Field of view
is partially out
of focus.
of focuseccentri-
cally.
I
Causes
I
Remedies
i
Nosepiece i s not correctly attached.
Insert sliding dovetail mount into
stand all the way, then lock.
Objective is not correctly position-
ed in light path.
Slightly rotate nosepiece until it
clicks into position.
Specimen is not correctly position-
ed on stage.
Place specimen on stage and secure
it
with specimen clips.
Nosepiece is not correctly attached.
Insert sliding dovetail mount all the
way, until
it
stops, then lock.
Objective is not correctly position-
ed in light path.
Slightly rotate nosepiece until it
clicks into position.
Condenser is out of center.
Center condenser.
(h) Light intensity
does not increase
although voltage
is raised.
( i ) No conoscopic
image can be
seen.
Condenser is not correctly centered.
Condenser is lowered excessively.
( j ) Crossed filter
position is not
attained.
Center condenser.
Raise condenser.
Condenser top lens is not in light
path.
2. Electric System
(b) Output voltage
for illuminator
cannot be regu-
lated.
I
Swing i t in.
Analyzer is out of light path.
(a) Illuminator i s
too bright (or
too dark).
Mains voltage is too high (or too
low).
Push i t in.
Adjust mains voltage with a variable
voltage transformer.
Line voltage selector switch i s not
matched to the mains voltage.
Voltage selector
switch
is not
matched to mains voltage.
Match selector switch with mains
voltage.
Adjust mains voltage selector switch
to mains voltage.
Mains voltage is too low or too
high.
Adjust mains voltage with a variable
voltage transformer.
(c) Lamp flickers
and intensity is
unstable.
(d) Reduced bulb
life.
Mains voltage i s unstable.
-
Loose electrical connection.
Use a variable voltage transformer.
Secure connection.
Bulb is not a standard bulb.
Use a standard bulb.