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1. This product should be installed and connected
in conformity with local codes by qualified serv-
ice personnel or system installers.
2. Use a class 2 power source supplying 24 V AC.
3. To prevent fire or electric shock hazard, use a UL
listed cable (VW-1, style 1007) to connect the
power supply to the camera.
4. Be sure to use a ceiling board/wall having
enough strength to support this camera.
5. Do not attempt to disassemble the camera.
To prevent electric shock, do not remove screws or
covers.
There are no user-serviceable parts inside.
Ask a qualified service personnel for servicing.
6. Handle the camera with care.
Do not abuse the camera. Avoid striking, shaking,
etc. The camera could be damaged by improper
handling or storage.
7. Do not use strong or abrasive detergents when
cleaning the camera body.
Use a dry cloth to clean the camera when it is dirty.
When the dirt is hard to remove, use a mild deter-
gent and wipe gently. Care should be taken not to
scratch the dome cover when wiping it.
Wipe off any remaining detergent in it with a dry
cloth.
8. Never face the camera towards the sun.
Whether the camera is in use or not, never aim it at
the sun or other extremely bright objects. Otherwise,
blooming or smear may be caused.
9. Never aim the camera at strong light sources for
an extended period of time.
A light source such as a spot light causes burn-in on
the display screen. Failure to observe this may
cause the image to become discoloured due to
deterioration of the colour filter in the CCD.
10.Do not operate the camera beyond the specified
temperature, humidity or power source ratings.
Do not use the camera in an extreme environment
where high temperature or high humidity exists. Do
not place the camera near heat sources such as
radiators, stoves or other units that produce heat.
Use the camera under conditions where tempera-
tures are between –10°C and +50 °C (14°F to
122°F) and humidity is below 90 %.
The input power source is 24 V AC 50 Hz for WV-
NW474SE or 220 V - 240 V AC 50 Hz for WV-NW
470S.
11.Do not install the camera near the air outlet of an
air conditioner.
The lens may become cloudy due to condensation if
the camera is used under the following conditions.
• Rapid temperature fluctuations by switching the
air conditioner on and off.
• Rapid temperature fluctuations due to frequent
opening and closing of a door.
• Use in an environment where eyeglasses
become foggy.
• Use in a room filled with cigarette smoke or dust.
If the lens becomes cloudy due to condensation,
remove the dome cover and wipe all moist surfaces
with a soft cloth.
When installing, be sure to wipe off water drops and
splashes inside the camera. Failure to do so may
cause condensation.
12.Do not aim the camera at the same object for a
long time.
Burn-in of an image may be caused on the fluores-
cent screen of the CRT.
• Matsushita Electric Industrial Co., Ltd. herewith
declares that it will not be liable for any damage,
whether direct or indirect, caused by using the
product for business transactions or security, or
malfunctioning of this product.
PRECAUTIONS