Primovert
Start-Up and Operation
ZEISS
12/2014
415510-7244-001
47
3.12
Troubleshooting on the Microcope
Problem
Cause
Remedy
Field of view is not completely
visible.
Nosepiece with objective has not been
switched into click-stop position.
Switch nosepiece with objective into
click-stop position.
Condenser has not been set correctly. Set condenser correctly.
Filter slider has not been inserted
correctly into the filter mount.
Push filter slider to click-stop position.
Slider for phase contrast has not been
adjusted correctly.
Centering the phase stop for phase
contrast, push the slider to click-stop
position.
Low resolving power, poor
image contrast.
Aperture diaphragm has not been
opened to correct size.
Open the aperture diaphragm to 2/3 for
brightfield, or completely for phase
contrast.
Use of wrong cover glass thickness for
transmitted light objectives corrected
for 1 mm or 0.17 mm cover glass.
Use standard 1 mm or 0.17 mm cover
glass.
Dirt or dust on the optical surfaces of
objectives, eyepieces, condensers, or
filters.
Clean the respective optical
components.
Major focus differences after
changing the objective.
Diopter setting of the eyepieces has
not been correctly adjusted.
Adjust the diopter setting of the
eyepieces, so it matches your visual
acuity, or set it to zero when using
glasses or contact lenses.
Objectives has not been correctly
screwed in.
Screw in objectives correctly.
The 6 V 30 W halogen bulb or
the LED source does not light
up although the microscope
has been switched on.
Power plug has not been inserted into
power outlet, plug-in power unit has
not been connected with stand.
Insert power plug into power outlet,
connect plug-in power unit with stand.
6 V 30 W halogen bulb or LED source
is defective.
Replace the defective 6 V 30 W halogen
bulb or the LED module.
Pins of the 6 V 30 W halogen bulb
have not been inserted properly into
lamp holder.
Insert the pins of the 6 V 30 W halogen
bulb properly into the lamp holder.
Transmitted-light illuminator has not
been properly screwed in.
Tighten fastening screws of the
transmitted-light illuminator.
The 6 V 30 W halogen bulb is
flickering, its light intensity is
unstable, the illumination is
inhomogeneous.
End of average service life of 6 V /
30 W halogen lamp has been
reached.
Replace the 6 V 30 W halogen bulb.
Power cable has not been installed
correctly or broken.
Connect the power cable correctly or
replace it.
Pins of 6 V 30 W halogen bulb has
not been inserted correctly into lamp
holder.
Insert the pins of the 6 V 30 W halogen
bulb correctly into the lamp holder.
Pins of 6 V 30 W halogen bulb not
inserted symmetrically into lamp
holder.
Insert the pins of the 6 V 30 W halogen
bulb symmetrically into the lamp holder.
