Nokia C20 User Guide
VEHICLES
Radio signals may affect improperly installed or inadequately shielded electronic systems in
vehicles. For more information, check with the manufacturer of your vehicle or its equipment.
Only authorised personnel should install the device in a vehicle. Faulty installation may be
dangerous and invalidate your warranty. Check regularly that all wireless device equipment in
your vehicle is mounted and operating properly. Do not store or carry flammable or explosive
materials in the same compartment as the device, its parts, or accessories. Do not place your
device or accessories in the air bag deployment area.
POTENTIALLY EXPLOSIVE ENVIRONMENTS
Switch your device off in potentially explosive environments, such as near petrol pumps.
Sparks may cause an explosion or fire resulting in injury or death. Note restrictions in areas
with fuel, chemical plants, or where blasting operations are in progress. Areas with a potentially
explosive environment may not be clearly marked. These are usually areas where you are
advised to switch your engine off, below deck on boats, chemical transfer or storage facilities,
and where the air contains chemicals or particles. Check with the manufacturers of vehicles
using liquefied petroleum gas (such as propane or butane) if this device can be safely used in
their vicinity.
CERTIFICATION INFORMATION
This mobile device meets guidelines for exposure to radio waves.
Your mobile device is a radio transmitter and receiver. It is designed not to exceed the limits
for exposure to radio waves (radio frequency electromagnetic fields), recommended by
international guidelines from the independent scientific organisation ICNIRP. These guidelines
incorporate substantial safety margins that are intended to assure the protection of all
persons regardless of age and health. The exposure guidelines are based on the Specific
Absorption Rate (SAR), which is an expression of the amount of radio frequency (RF) power
deposited in the head or body when the device is transmitting. The ICNIRP SAR limit for mobile
devices is 2.0 W/kg averaged over 10 grams of tissue.
SAR tests are carried out with the device in standard operating positions, transmitting at its
highest certified power level, in all its frequency bands.
This device meets RF exposure guidelines when used against the head or when positioned at
least ⅝ inches (1.5 centimetres) away from the body. When the device is kept in a carry case,
belt clip, or other form of device holder during use, the holder should not contain metal and
should provide at least the above-stated separation distance from the body.
To send data or messages, a good connection to the network is needed. Sending may be
delayed until such a connection is available. Follow the separation distance instructions until
sending is finished.
During general use, the SAR values are usually well below the values stated above. This is
because, for purposes of system efficiency and to minimise interference on the network,
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