Grundig GD-CI-BP4637E, Быстрое руководство, Страница: 6 / 42

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If the product supports IR, you need to take some precautions to
prevent IR reflection. Do not install the product close to reflective
surfaces of objects as this may cause reflection. If the product has a
dome cover, please remove the protection film only after installation
to prevent dust or grease on the camera which can cause reflection.
The foam ring around the lens must be seated flush against the inner
surface of the bubble to isolate the lens from the IR LEDS. Fasten the
dome cover to the camera body so that the foam ring and the dome
cover are attached seamlessly.
For cleaning, use a clean cloth with a bit of ethanol and wipe it care
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fully and gently. In any case, do not use alkaline detergents.
If a glove is provided in the package, please use it to open the product
cover. Never touch the product cover directly with fingers, because
the acidic sweat of the fingers may damage the surface coating of the
product cover.