45
TROUBLESHOOTING GUIDE
Reflected Light Observation Modes
Problem
Cause
Remedy
Page
11
a) Bulb operates, but field of view re-
mains dark.
Reflected light lamp is not on.
Turn lamp on.
Aperture and field iris diaphragms are not
opened wide enough.
Enlarge them to proper sizes.
Mirror unit is not mounted.
Mount mirror unit.
Mirror unit is not correctly engaged in
light path.
Engage mirror unit correctly in light
path.
Optimum mirror unit for observation is
not engaged in light path.
Set turret so that optimum mirror unit
for observation is engaged in light path.
b) Field of view is obscured or not
evenly illuminated.
Field iris diaphragm has not been cen-
tered.
Center field iris diaphragm/
Field iris diaphragm is stopped down too
far.
Enlarge field iris diaphragm until it cir-
cumscribes field of view.
Mercury burner is not centered correctly.
Center mercury burner.
Frost filter is not engaged in light path.
Engage frost filter in light path.
Filter is not in click position.
Push filter until it clicks properly.
c) Image glares.
Aperture iris diaphragm is stopped down
too far.
Open aperture iris diaphragm.
d) Visibility is poor.
· Image is not sharp.
· Contrast is poor.
· Details are indistinct.
A non-UIS2/UIS objective is used.
Use only UIS2/UIS series objectives
with this microscope.
Front lens of objective is dirty.
Clean objective.
Immersion oil is not being used with an
oil immersion objective.
Use immersion oil.
Recommended immersion oil is not
used.
Use provided immersion oil.
Light shield tube is not attached.
Attach light shield tube.
e) One side of image is blurred.
Specimen is tilted.
Place specimen properly on stage and
fix with specimen holders.
Revolving nosepiece is not correctly
mounted.
Attach revolving nosepiece correctly.
Objective is not correctly engaged in light
path.
Engage objective correctly in light
path.
38
31
39/40
39/40
37
38
14
39
39
38
43
3
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Содержание BX-RFA
Страница 2: ......
Страница 11: ...7 Make a photocopy of the observation procedure pages and post it near your microscope...