Dahua HFW4231EPS, Quick Start Manual

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3. Operation and Daily Maintenance

Please do not touch the heat dissipation component of the device directly in order to avoid scald.

Please do not dismantle the device; there is no component which can be fixed by users themselves
in the machine. It may cause water leakage or bad image for the device due to unprofessional
dismantling. Please contact after-sale service to replace desiccant if it becomes green.

It is recommended to use the device with thunder proof device in order to improve thunder proof
effect.

The grounding holes of the product are recommended to be grounded to further enhance the
reliability of the camera.

Do not touch the CCD (CMOS) optic component directly. You can use the blower to clean the dust
or dirt on the lens surface. Please use a dry cloth wetted by alcohol to wipe away the dust gently if
it is necessary to clean.

Always use the dry soft cloth to clean the device. If there is too much dust, please use the water to
dilute the mild detergent first and then use it to clean the device. Finally use the dry cloth to clean
the device. Don
’t use volatile solvent like alcohol, benzene, thinner and etc or strong detergent with
abrasiveness, otherwise it will damage the surface coating or reduce the working performance of
the device.

Dome cover is an optical device, please
don’t touch or wipe cover surface directly during
installation and use, please refer to the following methods to deal with once dirt is found:

Stained with dirt

Use oil-free soft brush or hair dries to remove it gently.

Stained with grease or fingerprint

Use soft cloth to wipe the water drop or oil gently to make it dry, then use oil-free cotton cloth or
paper soaked with alcohol or detergent to wipe from the lens center to outward. It is ok to change
the cloth and wipe several times if it is not clean enough.
Warning

Please modify the default password after login in order to avoid being stolen.

Please use the standard accessories provided by manufacturer and make sure the device is
installed and fixed by professional engineers.

Please prevent the device surface from the radiation of laser beam when using laser beam device.

Please do not provide two or more power supply modes for the device, otherwise it may cause
damage to the device.
Statement

Please refer to the actual product for more details; the manual is just for reference.

The manual will be regularly upgraded according to the product update; the upgraded content will
be added in the manual without prior announcement.

Please contact the supplier or customer service if there is any problem occurred when using the
device.