Zeiss Axioskop 2 plus Operating Manual page 126

Carl Zeiss
Problem
Great focus differences after
objective change.
Left and right fields of view
cannot be combined into an
image.
Eye-fatiguing microscopy.
Dirt or dust in the field of view. Condenser not focused correctly
4-6
CARE, MAINTENANCE, TROUBLESHOOTING AND SERVICE
Troubleshooting
Cause
Focusing eyepieces are not set
correctly.
Objective not screwed in until
stop.
Tube lens either not integrated or
integrated superfluously.
Interpupillary distance of the
binocular tube is not set correctly.
Focusing eyepieces are not set
correctly.
Interpupillary distance of the
binocular tube is not set correctly.
Focusing eyepieces are not set
correctly.
Image brightness not acceptable.
Binocular tube optically /
mechanically out of alignment.
and condenser lens 0.9 not
switched correctly.
Aperture diaphragm opening too
small.
Dirt or dust on the optical surfaces
of objectives, eyepieces,
condensers, filters or specimens.
Axioskop 2 plus
Axioskop 2 mot plus
Remedy
Set focusing eyepieces to the
appropriate ametropia, s. p. 2-5.
Screw in objective until stop.
Integrate tube lens or remove
superfluous tube lens.
Set interpupillary distance
correctly, see p. 2-6.
Set focusing eyepieces to the
appropriate ametropia, s. p. 2-5.
Set interpupillary distance
correctly, see p. 2-6.
Set focusing eyepieces to the
appropriate ametropia, s. p. 2-5.
Adjust lamp voltage or insert
conversion filter.
Check / repair by microscopy
service.
Focus condenser and switch
condenser lens 0.9 on or off
correctly, see p. 3-24 ff.
Set aperture diaphragm opening in
accordance with the 2/3 rule or
depending on the specimen
features, see p. 3-24 ff.
Clean the optical surfaces of the
appropriate components,
see p. 4-2.
B 40-075 e 10/03