Bedienungsanleitung Dahua VTH Series (Seite 5 von 59) (Englisch)

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The unit displays a marked change in performance.

The unit does not operate in the expected manner when the user correctly follows the

proper operating procedures.

 Ensure a service technician uses replacement parts specified by the manufacturer, or that

have the same characteristics as the original parts. Unauthorized parts may cause fire,

electrical shock, or other hazards. Dahua is not liable for any damage or harm caused by

unauthorized modifications or repairs.

 Perform safety checks after completion of service or repairs to the unit.

 Use attachments and accessories only specified by the manufacturer. Any change or

modification of the equipment, not expressly approved by Dahua, could void the warranty.

 Incorporate a readily accessible disconnect device in the building installation wiring for

quick power disconnect to the camera.

 Dahua assumes no liability or responsibility for any fire or electrical shock caused by

improper handling or installation.

Application Environment Requirements

 Please use the device within the allowed humidity (<95%RH) and altitude (<3000m).

 Transport, use, and store the unit within the specified temperature and humidity range.

 Do not place the unit in a wet, dusty, extremely hot or an extremely cold environment; and

avoid environments with strong electromagnetic radiation or unstable lighting.

 Do not use the device in the corrosive environment such as high salt fog area (sea, beach

and coastal area), acid gas environment and chemical plants.

 Do not use the device in applications with strong vibrations such as in boats and vehicles.

 Never push objects of any kind into this unit through openings as they may touch

dangerous voltage points or cause a short circuit that may result in fire or electrical shock.

Take care to not spill any liquid on the unit.

 If your installation environment is subjected to one of the conditions above, contact our

sales staff to purchase cameras intended for the particular environment.

 Please don’t install the device near the place with heat source, such as radiator, heater,

stove or other heating equipment, which is to avoid fire.

 Do not aim the lens at an intense radiation source (such as the sun, a laser, and molten

steel for example) to avoid damage to the thermal detector.

 Use the factory default package or material with equal quality to pack the device when

transporting.

Operation and Maintenance Requirements

 Do not touch the heat dissipation component of the unit. This part of the unit is hot and

may cause a burn.

 Do not open or dismantle the device; there are no components that a user can fix or

replace. Opening the unit may cause water leakage or expose components to direct light.

Contact the manufacturer or a qualified service representative to service the camera or to

replace a component, including the desiccant.

 Dahua recommends the use of a thunder-proof device in concert with the unit.

 Do not touch the CCD or the CMOS optic sensor. Use a blower to clean dust or dirt on the

lens surface. Use a dry cloth dampened with alcohol and gently wipe away any dust on

the lens.

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Dahua VTH Series Seite 5

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