Operation
Manual
Raytek
CM
18
9.4 Cleaning the Lens
Care should be taken to keep the lens clean. Any foreign matter on the lens will affect the accuracy of the
measurements. Be sure to take care when cleaning the lens. Please observe the following:
1.
Blow off loose particles with clean air.
2.
Gently brush off remaining particles with a soft camel hair brush.
3. To remove any severe contamination, use a clean, soft cloth dampened with distilled water. In any
case, do not scratch the lens surface!
For fingerprints or other grease, use any of the following:
z
Denatured
alcohol
z
Ethanol
z
Kodak
lens
cleaner
Apply any of the above to the lens. Wipe gently with a clean, soft cloth until you see colors on the lens surface, then
allow to air dry. Never wipe the surface dry - this may scratch the surface. If the lens is contaminated with silicones
(e.g. from hand creams), clean it carefully using Hexane. Allow the lens to air dry.
Do not use any ammonia or any cleaners containing ammonia to clean the lens. This may result
in permanent damage to the lens’ surface.
9.5 Replacing a Protective Window
The sensors contain a thread for ease in replacing the protective window..
The window material is placed in a metal ring with a thread with an inner rubber gasket. This rubber gasket
hermetically seals the sensor against atmospheric contaminants.
Replace the protective window using the special tool supplied with the spare window. Put the tool into the slot on the
window’s mounting ring. Now gently unscrew the protective window from its mount by turning to the left. Take care to
screw on the new protective window as tight as possible, but do not over tighten.
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