31
3. Dirt or dust is
visible in the field
of view.
Dirt or dust exists on the
eyepiece.
Clean it.
12
Dirt or dust exists on the
condenser.
Dirt or dust exists on the
specimen.
4. One side of image
is blurred.
Nosepiece is not attached
properly.
Push the slide dovetail until it is
stopped.
Nosepiece is not rotated to a
clickstop position.
Rotate the nosepiece to a click
stop position.
Stage is not mounted properly.
Re-attach it.
37
5. Contrast is poor
Objective is not suitable for the
microscope.
Use the specified objective.
Aperture diaphragm is stopped
down too far.
Open to a suitable size.
27
Condenser is lowered too far.
Adjust the condenser height
position.
26
Dirt or dust exists on the
objective lens.
Clean it.
12
Dirt or dust exists on the
condenser.
Dirt or dust exists on the
specimen.
C. Observation Tube
1. Field of view does
not match with
both eyes.
Interpupillary distance is not
correct.
Adjust the interpupillary distance.
24
Eyepiece diopter is not
adjusted.
Adjust the diopter.
24
Different eyepiece is used on
left and right.
Use the same type (magnification,
field number) on both sides.
D. Stage and Focus Adjustment
1. Coarse
adjustment knob
is hard to turn.
Tension adjustment ring is
tightened excessively.
Loosen ring.
21
Focus stopper lever is locked
Unlock focus stopper lever.
22
2. Stage falls down
by itself. (Image is
out-focused
during
observation.)
Tension adjustment ring is too
loose.
Tighten ring.
21
3. Image shifts when
you touch stage.
Stage is not mounted properly.
Clamp Stage.
37
4. Coarse
adjustment will
not go all the way
up.
Focus stopper lever is locked at
a too low height.
Unlock focus stopper lever.
22
5. Coarse
adjustment will
not go all the way
down.
Condenser holder is too low
Raise condenser holder.
26
Summary of Contents for HRM-300
Page 1: ...1 HRM 300 Upright Microscope 표지그림 변경 부탁합니다 ...
Page 17: ...17 ...
