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3. Safety Warnings
Before using the device, please read the instructions carefully.
Placement
• Do not place the device on surfaces that are unstable, easy to tilt or which can fall.
• Do not place the device in places with direct sunlight, or near sources of heat, such as electric heaters
or bright light sources.
• Do not use the device next to appliances that generate magnetic fields.
• Do not place the device in damp places or places where it might be exposed to moisture or liquids.
• Do not insert any items inside of the device.
• Do not place heavy objects on the device.
Power Supply
• Please verify compatibility between the voltage rating on back shell nameplate and the main power
supply voltage rating.
• In case of thunderstorm and lightning weather, please unplug power cord and antenna plug.
• When no one is indoors or the device will not be in use for an extended period of time, please unplug
the power cord.
• Please protect the power cord from physical or mechanical damage.
• Please use the original power cord, and do not modify or extend the power cord.
• Please check and make sure the AC power ground wire is connected.
Screen
• When writing on screen, please do not use hard or sharp objects.
• When the screen requires cleaning, please unplug the power cord first.
• Please use a soft, dust-free, dry cloth to wipe the screen.
• Do not use water or a spray cleaner to clean the device.
• Please contact the service center for internal cleaning of the device.
• Do not display image with high brightness on the screen for a long time.
• Please turn off the device after usage, it is not made for 24/7 use. Recommended screen time 16/7.
Range of Visibility
• The ideal distance between the eyes of viewer and the screen is 2 to 7 times of the screen diagonal.
• The best viewing angle between the eyes of viewer and screen is within 178 degrees up and down, left
and right.
Temperature
• Do not place the device near an electric radiator or heating unit.
• When moving the device from a low temperature area to a high temperature area, before connecting
the device to power, please leave the device idle in the new environment for some time to allow for
temperature adjustment, to sufficiently diffuse internal condensation prior to powering on.
• The device
’
s normal working temperature is 0~40°C, storage temperature is -10~60°C.
Humidity
• Do not expose the device to rain, moisture, or places near water.
• Please make sure the indoor environment is cool and dry, the device’s normal working humidity is
20 - 80% RH, storage humidity is 10~60% RH.
