MAINTENANCE
6.3.2 Cleaning the Deflection Mirror
WARNING: Shut down the camera system before performing this
maintenance task. Do not stare into the camera’s window at the LED light.
Avoid direct eye exposure. The LED light level does not constitute a health
hazard, however staring at the LED light for prolonged periods could result
in eye damage.
CAUTION: Use care when cleaning the deflection mirror to assure that the
alignment with the camera is not altered. Never apply cleaning solution
directly to the mirror. Always apply the solution to a cloth, and then the cloth
to the mirror. It is a good habit to pre-mark the mirror position, so if it does
move it can be returned to the original position.
This procedure is recommended only if it is noticed that the environment is dirty enough that
HEAVY deposits are appearing on the deflection mirrors. The cleaning procedure should be
performed without removing the mirror from the mounting structure.
1. Switch off the conveyor.
2. Switch off the camera system.
3. Review the exterior cleaning procedure before cleaning the deflection mirror.
4. Check the deflection mirror for any dust, dirt, or smudges. If the deflection mirror needs to
be cleaned, proceed to Step 5.
5. Use a dry, soft, lint-free cloth to remove accumulated dust.
6. If the deflection mirror is particularly dirty or smudged, make a solution of seven parts
denatured alcohol and three parts water. (Many over-the-counter solutions will leave
deposits/smudges that can affect performance.)
7. Apply the cleaning solution to a lint-free cloth.
8. Apply the cloth with the cleaning solution to the mirror.
9. Remove any streaks or remaining moisture from the mirror with a dry, soft, lint-free cloth
or lens paper.
10. Verify camera operation.
Figure 145: Deflection Mirror
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