CARE, MAINTENANCE, TROUBLESHOOTING AND SERVICE
Axio Imager
Troubleshooting
Carl Zeiss
M70-2-0020 e 06/2009
430000-7344-001
183
5.3
Troubleshooting
Problem Cause
Remedy
Shadows or inhomogeneous
image brightness in the field of
view; the field is not entirely
visible.
The vis/doc push-pull rod on the
phototube is not in the correct
position (intermediate position).
Move the vis/doc push-pull rod to
the correct position (end
position).
The nosepiece with objective has
not clicked into place.
Turn on the nosepiece with the
objective until it clicks into place.
The condenser has not been set
correctly.
Set the condenser correctly
(adjustment, centering);
see p. 145 ff.
The aperture diaphragm has not
been set correctly.
Set the aperture diaphragm
correctly (centering, aperture);
see p. 145 ff.
The luminous-field diaphragm has
not been set correctly.
Set the luminous field-diaphragm
correctly (centering, opening);
see p. 145 ff.
The filter has not been inserted
correctly in the filter mount.
Insert the filter correctly in the
filter mount.
No DIC effect
The polarizing elements are not in
the light path.
Move the polarizing elements into
the light path and set them to
crossed position.
Double images in bright-field
examinations
DIC slider in the light path.
DIC slider in the light path.
Low resolving power and poor
image contrast.
The aperture diaphragm has not
been opened to the correct size.
Set the aperture diaphragm as per
the 2/3 rule or the specimen
features; see p. 146 ff.
The condenser has not been
focused correctly and front lens
0.9 not swiveled in / out correctly.
Focus the condenser and swivel
front lens 0.9 correctly in or out;
see p. 146 ff.
Wrong cover slip thickness for
transmitted-light objectives
corrected for 0.17 mm cover slip
thickness.
Use standardized 0.17 mm cover
slips.
Specimen slide placed upside
down.
Turn over the specimen slide; the
specimen side should be on top.
Use of no or non-specified
immersion oil with immersion
objectives.
Use immersion oil 518 F
®
from
Air bubbles in the immersion oil.
Remove the bubbles by applying
new oil.
