Troubleshooting - Zeiss Primo Star Mode D'emploi

Carl Zeiss
4.2

Troubleshooting

Problem
The field of view is not
completely visible.
Low resolving power, poor
image contrast
Greater focus differences after
changing the objective
The halogen lamp or
6V 30W
the LED source does not light
up although the microscope
has been switched on.
The halogen lamp is
6V 30W
flickering, its light intensity
unstable, the illumination
inhomogeneous
Stage comes down by itself,
image focus is unstable
26
Care and Troubleshooting
Cause
Nosepiece with objective has not been
switched into click-stop position.
Condenser has not been set correctly.
The aperture diaphragm has not been
adjusted correctly.
The luminous-field diaphragm has not
been adjusted correctly.
The filter has not been inserted
correctly in the filter mount.
The aperture diaphragm has not been
opened to the correct size.
Condenser not focused correctly.
Wrong cover slip thickness selected
for use of transmitted-light objectives
corrected for 0.17mm cover slips.
Use of no or non-specified immersion
oil with immersion objective
Air bubbles in immersion oil
Immersion oil on the front lens of a
dry objective.
Dirt or dust on the optical surfaces of
objectives, eyepieces, condenser, or
filters
The focusing eyepieces have not been
set correctly.
Power plug has not been plugged into
power outlet.
halogen lamp or LED source is
6V 30W
defective.
End of average service life of 6
halogen lamp has been reached.
Power cable Incorrectly installed or
broken power cable
The pins of the 6V 30W halogen lamp
have not been inserted correctly in the
lamp holder.
The pins of the 6V 30W halogen lamp
have not been inserted symmetrically
in the lamp holder.
Adjusted torque of coarse focusing
drive is too low.
Remedy
Switch nosepiece with objective into
click-stop position.
Set condenser correctly.
Adjust aperture diaphragm correctly.
Adjust luminous-field diaphragm
correctly.
Insert filter correctly into filter mount.
Set opening of aperture diaphragm to
correct size.
Focus the condenser.
Use standard 0.17 mm cover slips.
Use the supplied immersion oil.
Remove the bubbles by applying new oil
or moving the objective to and fro.
Clean the front lens of the dry objective.
Clean the respective optical
components.
Set the focusing eyepieces to the
corresponding defective vision.
Connect power plug to power outlet.
Replace the defective
lamp or the LED module
Replace the 6V 30W halogen lamp.
V 30W
Connect the power cable correctly or
replace it.
Insert the pins of the 6V 30W halogen
lamp correctly in the lamp holder.
Insert the pins of the 6V 30W halogen
lamp symmetrically in the lamp holder.
Increase the torque of the coarse
focusing drive to make motion stiffer.
Primo Star
halogen
6V 30W
B 46-0071 v 03/06