Dahua 42212TNI Skrócona instrukcja obsługi - Strona 4
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If the unit is damaged and requires service, unplug the unit from the main AC power supply and
from the PoE supply and refer to qualified service personnel. Damage may include, but is not
limited to:
• The power supply cord or plug is damaged.
• Liquid has spilled in or on the unit.
• An object has fallen on the unit.
• The unit has been dropped and the housing is damaged.
• 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.
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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.
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Perform safety checks after completion of service or repairs to the unit.
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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.
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Incorporate a readily accessible disconnect device in the building installation wiring for quick
power disconnect to the camera.
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Dahua assumes no liability or responsibility for any fire or electrical shock caused by improper
handling or installation.
Environmental Precautions
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Do not aim the unit at a strong light source or into direct sunlight to focus. A strong light source
may cause overexposure and may affect the longevity of the CCD or the CMOS sensor.
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Transport, use, and store the unit within the specified temperature and humidity range.
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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.
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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.
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Do not use units intended for indoor applications near water, in damp or wet environments, or in
any area classified as a wet location. Do not expose an indoor unit to rain or moisture to reduce
the risk of fire or electric shock.
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Do not block or cover any openings in the unit enclosure. These openings are provided for
ventilation to prevent overheating and to ensure reliable operation. Ensure the unit is placed in
an area with adequate ventilation.
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Do not place the unit near a heat source such as heaters, stoves, radiators or other equipment
that produces heat.
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Pack the unit with standard factory packaging or material of the same quality when transporting
the unit.
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Take care to avoid heavy stress, violent vibration, or water spills to the camera unit during
transportation, storage, and installation.
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