Potentially Explosive Atmosphere; Traffic Security; Operating Environment - Huawei ETS8121 User Manual

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Potentially Explosive Atmosphere

Power off your device in any area with a potentially explosive atmosphere, and
comply with all signs and instructions. Areas that may have potentially explosive
atmospheres include the areas where you would normally be advised to turn off
your vehicle engine. Triggering of sparks in such areas could cause an explosion
or a fire, resulting in bodily injuries or even deaths. Do not power on your device at
refueling points such as service stations. Comply with restrictions on the use of
radio equipment in fuel depots, storage, and distribution areas, and chemical
plants. In addition, adhere to restrictions in areas where blasting operations are in
progress. Before using the device, watch out for areas that have potentially
explosive atmospheres that are often, but not always, clearly marked. Such
locations include areas below the deck on boats, chemical transfer or storage
facilities, and areas where the air contains chemicals or particles such as grain,
dust, or metal powders. Ask the manufacturers of vehicles using liquefied
petroleum gas (such as propane or butane) whether this device can be safely used
in their vicinity.

Traffic Security

Observe local laws and regulations while using the device. In addition, if using the
device while driving a vehicle, comply with the following guidelines:
Concentrate on driving. Your first responsibility is to drive safely.
Do not talk on the device while driving. Use hands-free accessories.
When you have to make or answer a call, park the vehicle at the road side
before using your device.
RF signals may affect electronic systems of motor vehicles. For more
information, consult the vehicle manufacturer.
In a motor vehicle, do not place the device over the air bag or in the air bag
deployment area. Otherwise, the device may hurt you owing to the strong force
when the air bag inflates.
Do not use your device while flying in an aircraft. Power off your device before
boarding an aircraft. Using wireless devices in an aircraft may cause danger to
the operation of the aircraft and disrupt the wireless telephone network. It may
also be considered illegal.

Operating Environment

Do not use or charge the device in dusty, damp, and dirty places or places with
magnetic fields. Otherwise, it may result in a malfunction of the circuit.
The device complies with the RF specifications when the device is used near
your ear or at a distance of 1.5 cm from your body. Ensure that the device
accessories such as a device case and a device holster are not composed of
metal components. Keep your device 1.5 cm away from your body to meet the
requirement earlier mentioned.
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