Dahua TPC-BF2221-T Quick Start Manual page 6

Please don't block the ventilation opening near the device, which is to avoid heat

accumulation for the device.
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.
Please don't aim the lens at intense radiation source directly (such as sun, laser and

molten steel etc.), which is to avoid causing damage to the thermal detector.
Please don't let any liquid enter the device, which is to avoid causing damage to the

internal components; please stop using the device immediately and cut off the power, plug
out all the cables which are connected to the device if there is liquid entering the device,
and contact the local customer service center.
Please don't stuff any foreign matter into the device in case that it may cause device short

circuit, which may cause damage to the device or human injury.
Please use the factory default package or material with equal quality to pack the device

when transporting the device.
Please don't press, vibrate or soak the device during transportation, storage and

installation.
Operation and Maintenance Requirements
Please don't touch the heat dissipation component of the device in case you may get burnt.

Please don't dismantle the device; there is no part which can be repaired by users

themselves. It may cause water leakage or bad image for the device if it is dismantled
unprofessionally.
It is recommended to use the device together with a lightning arrester, which is to improve

the effect of lightning protection, it needs to conform to the lightning protection regulation
for outdoor application.
Do not touch the photosensitive device with your hands. To clean the dust and filth on the

lens, an air blower can be used. For further cleaning, please pour a little alcohol into a
piece of dry cloth with which you can softly wipe the dirt away.
Clean device body with a piece of soft dry cloth. For any dirt hard to remove, pick up a

piece of clean and soft cloth, dip it with a little neutral detergent and gently wipe the dust
away with it -- after that, wipe all the liquids on the device away with another dry cloth.
Never use any volatile solvent such as alcohol, benzene and thinner, or any cleaner that is
strong and abrasive. Otherwise, the device's surface coating will be hurt and its working
performance will be encumbered.
WARNING
Please modify the default password after login, in case it is stolen.

Please use the accessories regulated by the manufacturer, and the device should be

installed and maintained by professionals.
Internal and external ground connection should be stable.

Please don't provide two or more power supply modes to the device, otherwise, it may

cause damage to the device.
Important Safeguards and Warnings V