7
MAINTENANCE AND CARE
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8011325/18IM/2020-07-02|SICK
O P E R A T I N G I N S T R U C T I O N S | ICR880/890
Subject to change without notice
7.1.3
Cleaning the deflector mirror
The external deflector mirror is a front surface mirror. This means that cleaning affects the
optical effective area itself.
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That is why you should not clean the deflector mirror unless it is necessary.
Only touch the reflector surface when this is absolutely necessary, and only partially, if
possible.
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Do not use already-used lens cloths to clean the deflector mirror.
We recommend using the SICK lens cloth (part number 4003353) or a camel-hair brush.
NOTE
Damage to the optical effective area of the deflector mirror
Using the wrong cleaning technique or aggressive cleaning agents can damage the
deflector mirror, thus impairing the reading performance of the camera system.
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That is why you should not clean the deflector mirror unless it is necessary.
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Only touch the reflector surface when this is absolutely necessary (e.g., if it is very
dirty). Never touch the entire reflector surface.
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Do not use oily compressed air from a can.
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Do not wipe the mirror with a towel to prevent irreversible scratches.
Removing dust and loose dirt particles
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Carefully blow away dust and loose dirt particles with clean, oil-free air. Do not use
compressed air from a can since it may contain alkaline-like additives which attack the
mirror surface.
Removing solid particles
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Remove solid parties carefully with a camel-hair brush previously degreased with
acetone. Do not apply any acetone directly to the mirror surface.
The camel-hair brush must have the following properties:
•
Camel-hair brush for photographic purposes
•
Natural hair to prevent static charge
•
Suitability for cleaning optical surfaces, lenses, negatives
Intensively cleaning deflector mirror
1. Fill a clean plastic spray bottle with distilled water.
2. Spray the mirror surface uniformly with distilled water. Hold the mirror at an angle so
the distilled water can drip off.
3. Let the mirror dry.
Do not wipe the mirror dry
!
Recommendation