7 Troubleshooting
ZEISS
7 Troubleshooting
The following table provides information about solving common problems.
Info
If you cannot solve the problem or if you are unsure about a certain technical difficulty, con-
tact your local ZEISS service representative.
Symptom
Cause
Measure
The field of view is not
completely visible
Nosepiece with objective is
not completely switched into
the click-stop position.
Switch the nosepiece with ob-
jective into the click-stop posi-
tion.
The filter is not placed cor-
rectly on the luminous-field di-
aphragm.
.
Low resolving power and
poor image contrast
The aperture diaphragm is not
correctly adjusted.
Set the aperture diaphragm
according to the 2/3 rule or
the sample features.
The condenser is not correctly
focused.
Focus the condenser.
A wrong cover glass thickness
for transmitted light objectives
is used.
Use standard cover glass with
a thickness of 0.17 mm if ob-
jectives are corrected for
0.17 mm cover glass thick-
ness.
Immersion objectives are used
with no or inappropriate im-
mersion oil.
Use immersion oil 518 N or
518 F from ZEISS.
The immersion oil contains air
bubbles.
Repeat the oiling procedure
with fresh oil.
The front lens of a dry objec-
tive is soiled with immersion
oil.
Clean the front lens of the dry
objective.
Dirt or dust on the optical sur-
faces of objectives, eyepieces,
condensers or filters.
Clean the respective optical
components.
Significant difference in
the focus position after
changing the objective.
The focusing eyepieces re not
set correctly.
Set the focusing eyepieces to
the corresponding defective vi-
sion.
The LED source does not
light when turning the
light intensity knob.
The power plug is not plugged
into the power outlet.
Connect the power plug to the
power outlet [
.
The stage comes down
by itself, the focus is un-
stable.
The adjusted torque of the
coarse focusing drive is too
low.
Contact the ZEISS service rep-
24
Instruction Manual ZEISS Primostar 1 | en-US | Rev. 2 | 415501-7021-111
Содержание Primostar 1
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