TROUBLESHOOTING GUIDE
13
25
Observation
Cause
Remedy
1.
Uneven brightness in observation
The objective is not engaged in the
Engage the objective into position
field
light path
until the nose turret clicks
The condenser is too low
Raise up to achieve more light
The objective, eyepiece, condenser
Clean them thoroughly as previously
and/or window lens are dirty
prescribed in “Optical Cleaning”
2. Dust or stains are visible in
The eyepiece, condenser, window lens Clean glass parts thoroughly with
observation field
and/or specimen glass is dirty
lens tissue and cleaning solution
prescribed in“Optical Cleaning”
3. Glare visible in field of View
The condenser is too low
Raise condenser light
The condenser iris diaphragm ring is
Adjust the aperture according to the
closed
objective magnification
4. Observation image is hazy
The objective is not engaged in the
Engage the objective into position
or unclear
light path
until it clicks
The objective, eyepiece, condenser
Clean glass parts thoroughly with
and/or specimen glass is dirty
lens tissue and cleaning cloth
Immersion oil is not used with an
Use immersion oil as suggested
immersion objective.
Bubbles are present in immersion oil
Remove the bubbles by agitation
The specified immersion oil is not used Use the immersion oil supplied by
LABOMED
5. Part of image is defocused
The objective is not properly engaged Engage the objective into position
in the light path
until the nose turret clicks
The specimen is not set properly on
Set the specimen correctly on the
the stage
stage and secure using the specimen
holder
6. Coarse focus adjustment cannot
The condenser is too low
Raise the condenser
lower the stage low enough
7. Fields of view through both
The interpupillary distance is not
Adjust IPD to the appropriate setting
eyepieces is inconsistent adjusted properly
Dioptric compensation for the two eyes Adjust diopter settings
is not set
The left and right eyepieces are of
Ensure that both eyepieces are of
different magnification
are of same magnification. LABOMED
does not recommend using third party
eyepieces in conjunction with
LABOMED eyepieces.
Under certain conditions, performance of the unit may be adversely affected by factors other than defects. If problems occur,
please review the following list and take corrective action as needed. If problem persists, please contact LABOMED or your
local LABOMED dealer.
