Axioskop 2
plus
CARE, MAINTENANCE, TROUBLESHOOTING AND SERVICE
Axioskop 2
mot plus
Troubleshooting
Carl
Zeiss
B 40-075 e 10/03
4-5
Problem Cause
Remedy
Low resolving power and poor
image contrast.
Aperture diaphragm opening not
set correctly.
Set aperture diaphragm opening in
accordance with the 2/3 rule or
depending on the specimen
features, see p. 3-24 ff.
Condenser not focused correctly
and condenser lens 0.9 not
switched correctly.
Focus condenser and switch
condenser lens 0.9 on or off
correctly, see p. 3-24 ff.
Wrong cover slip thickness for
transmitted-light objectives with
cover slip thickness 0.17 mm.
Use standardized cover slips with
thickness 0.17 mm.
Use of no or unspecified
immersion oil with immersion
objectives.
Use immersion oil 518 N from Carl
Zeiss, see p. 4-8.
Air bubbles in the immersion oil.
Apply new oil to remove the
bubbles.
Immersion oil at the front lens of a
dry objective.
Clean the front lens of the dry
objective, see p. 4-2.
Corr. ring is not set to the correct
cover slip thickness.
Set the corr. ring to the correct
thickness, see p. 1-12.
Dirt or dust on the optical surfaces
of objectives, eyepieces,
condensers or filters.
Clean the appropriate optical
components, see p. 4-2.
Asymmetrically blurred images,
e.g. one side in focus, one side
Condenser not set correctly.
Set condenser correctly,
see p. 3-24 ff.
not in focus.
Nosepiece not in click-stop
position.
Correctly click-stop nosepiece.
Specimen is not clamped in
position on the mechanical stage.
Correctly insert specimen in
specimen holder and clamp it.