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47
6. Assembly
Fig. 55 Booster lens
Fig. 56 Booster lens in stand
1 Booster lens
If a booster lens is included in the scope of de-
livery, insert it into the rear stand opening at the
left or right, depending on the stand model.
The booster slide has several positions:
1. Slide pulled out:
no effect
2. Depending on orientation of slide:
a) symbol visible:
center orientation
The intensity of the fluorescence is
increased by 50% in the center of
the field of view (approx. 30% of the
field).
b) symbol
visible:
The overall intensity is reduced by
25%. The entire field of view is evenly
illuminated, however.
Fig. 57 Hg-mercury burner
1
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