Maintenance
— 58
SPECTRO ARCOS FHX3X — 08.02.2022
7.9.3
Cleaning the lens
Notice! Instrument damage/measurement error!
The lens is scratch- and moisture-sensitive.
If you touch the lens surface with your fingers, residues (e.g., grease) will
stick to the lens surface. These residues are hard to remove.
Check the lens for contamination.
When cleaning the lens, proceed as follows (if necessary):
1. Use the OPI tool (2) to loosen
the retaining collar (1) at the
rear.
Fig. 28
2. Insert a clean ‘peek’ sample
needle or similar type of object
(1) through the sampler opening
from the opposite side.
3. Carefully push the lens (2) out
and onto a piece of lens
cleaning paper.
Fig. 29
4. Clean the contaminated lens using lens cleaning paper or a lint-free soft cloth.
Cleaning of the lens is now complete.
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