ZEISS
7 Troubleshooting |
7 Troubleshooting
Symptom
Cause
Measure
The field of view is not
completely visible.
Nosepiece with objective has
not been switched into click-
stop position.
Switch nosepiece with objec-
tive into click-stop position.
Condenser has not been set
correctly.
Set condenser correctly.
The aperture diaphragm has
not been adjusted correctly.
Adjust aperture diaphragm
correctly.
The luminous-field diaphragm
has not been adjusted cor-
rectly.
Adjust luminous-field di-
aphragm correctly.
The filter has not been in-
serted correctly into the filter
mount.
Insert filter correctly into filter
mount.
Low resolving power,
poor image contrast
The aperture diaphragm has
not been opened to correct
size.
Set opening of aperture di-
aphragm to correct size.
Condenser not focused cor-
rectly.
Focus the condenser.
Wrong cover glass thickness
selected for use of transmit-
ted-light objectives corrected
for 0.17 mm cover glass.
Use standard 0.17 mm cover
glass.
Use of no or non-specified im-
mersion oil with immersion
objective
Use the supplied immersion
oil.
Air bubbles in immersion oil
Remove the bubbles by apply-
ing new oil or moving the ob-
jective to and fro.
Immersion oil on the front lens
of a dry objective
Clean the front lens of the dry
objective.
Dirt or dust on the optical sur-
faces of objectives, eyepieces,
condenser, or filters
Clean the respective optical
components.
Greater focus differences
after changing the objec-
tive
The adjustable eyepieces have
not been set correctly.
Set the adjustable eyepieces to
the corresponding defective vi-
sion.
The 6 V/30 W halogen
lamp or the LED source
does not light up al-
though the microscope
has been switched on.
The power plug has not been
plugged into the power outlet.
Connect power plug to power
outlet.
6 V/30 W halogen lamp or LED
source is defective.
Replace the defective 6 V/30
W halogen lamp or the LED
module.
Instruction Manual ZEISS Primostar 3 | en-US | Rev. 1 | 415501-7011-111_en
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