Olympus BHTU Manual de instruções - Página 21

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Phenomenon
Cause
Remedy
3, Coarse and Fine Adjustments
I
aj
Coarse adjustment knob is
Tension
adjustment
ring
is
Loosen ring properly.
too tight.
tightened too much.
Users is trying to raise stage
Unlock pre-focusing lever.
above the focusing limit with
pre-focusing
lever
engaged.
bl Stage
drops
or
specimen
Tension
adjustment ring
is
Tighten ring properly.
goes out of focus during
too loose.
observation due to slipping
fine adjustment knobs.
c) Stage cannot be raised to
Pre-focusing lever is engaged
Unlock lever.
the upper limit.
in
lower than focusing posi-
tion.
dl
Stage cannot be lowered
Condenser mount is lowered
Raise condenser.
to the lower limit.
too much.
e)
Objective front lens hits
Specimen
is placed on
stage
Reverse specimen.
specimen before coming
upside down ..
into focus.
4, Observation Tubes
al
Incomplete binocular vi-
Interpupillary distance is not
Correct the interpupillary dis-
sian.
correctly adjusted.
tance.
Diopter adjustment is incom-
Complete
the diopter adjust-
plete,
ment.
Right and left
eyepieces are
Use
a
pair of matched eye-
not matched.
pieces.
User is unaccustomed to bi-
Prior to looking into the bi-
nocular vision.
nocular observation tube, look
at a far away object.
5,
Stage
a)
Image easily goes out of
Stage is not correctly locked.
Clamp stage securely.
focus when you touch the
stage.
Adjust specimen pOSitioj
bl
Specimen
stops midway
Specimen is not correctly po-
on the east-west traverse.
sitioned.
20