Zeiss AT 030, Product Documentation Set

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Instruction for use 7 Maintenance
AT 030 7.2 Adjusting the swivel-mounted tonometer holder with square mounting
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If the same eyepiece is always to be used for tonometry, the
adjustment is now finished.
If, however, both eyepieces are to be used alternately, the position
of the AT 030 on the base plate must now be changed:
u
Release the knurled screw and remove the tonometer.
u
Set the tonometer with the centering pin into the other
alignment hole of the base plate.
u
Retighten the knurled screw.
u
Check, whether the measuring prism is also correctly aligned in
this eyepiece. If not, repeat the first four steps.
Setting/checking the correct focus position (image focus C)
u
Set the scale on the tonometer to zero.
u
To assess the focus sharpness apply a visible structure to one
side of the front surface of the measuring prism (e.g. finger-
print, dust, graph paper).