Allied International Home Security System manual Scratches, Are not free from contamination

AVT camera cleaning instructions

The cotton or lens tissue should be moist, but not dripping. Please hold the camera away from your body to avoid falling particles like flakes from skin on the sensor. Hold the camera sensor diagonally upwards.

3.Wipe the glass surface with a spiral motion from the centre to the rim. Normally several spiral wipes are recommended. Wipe only on glass avoiding contact to metal surfaces, because microscopic dirt could be released and could cause scratches on the glass.

Figure 6: Sensor cleaning

4.When you've finished cleaning, examine the surface in a strong light. Take an out-of-focus picture of a flat, illuminated surface to see if any dirt or dust remains.

5.If dust spots remain, repeat this procedure using new clean lens tissue (as described above).

Caution	•	Never wipe lenses with dry swabs or tissue - this causes
		scratches.
	•	Do not use any disposable cotton cosmetic swabs; they
		are not free from contamination.

Figure 7: Don’t use compressed air

Hardware Installation Guide V2.0.0

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