Olympus BHS-313 Інструкція з експлуатації - Сторінка 21
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Phenomenon
Cause
Remedy
ο)
Lamp goes off and on.
Bulb
filament
is
burn out.
likely
to
Replace bulb.
Loose
electric
connections.
Check all connections.
d
Bulb burns out frequently.
Line voltage selector switch is
not matched with local mains
voltage.
Match
selector
switch
to
mains voltage.
Bulb is not standard one.
Use standard bulb.
Coarse and Fine Adjustments
a)
Coarse adjustment knob is
too tight.
Tension
adjustment
ring
is
tightened too much.
Loosen ring properly,
User
is trying
to
raise
stage
above the focusing limit im-
posed
by
the
engaged
pre-
focusing lever.
Unlock lever.
b
Stage
drops
or
specimen
goes out
of focus during
observation due to slipping
fine adjustment knobs.
Tension
adjustment
ring
is
too loose.
Tighten ring properly.
ο]
Stage cannot
be raised
to
the upper limit.
Pre-focusing
lever
is engaged
in lower than
focusing posi-
tion.
Unlock lever.
d
Stage cannot be lowered
to the lower limit.
Stage is mounted too low.
Raise stage mount with Allen
wrench.
el
Objective
front
lens
hits
specimen
before
coming
into focus.
Specimen
is placed
on stage
upside down.
Reverse specimen.
. Observation Tubes
al
Incomplete
binocular
vi-
sion.
Interpupillary
distance
is not
correctly adjusted,
Correct the interpupillary dis-
tance,
Diopter adjustment is incom-
plete.
Complete
the diopter adjust-
ment.
Right
and
left eyepieces are
not matched.
Use
a pair of matched
eye-
Pieces.
User is unaccustomed
to bi-
nocular vision,
Prior to looking into the bi-
nocular observation tube, look
at a far away object.
Stage
Image easily goes out of
focus when
you touch the
stage.
Stage is not correctly locked,
Clamp stage securely.
bi
Specimen
stops
midway
on the east-west traverse.
Specimen
is not correctly po-
sitioned.
Adjust specimen position.
19