Huawei Technologies Co. Ltd C6050 User Manual

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14 
9 Warnings and Precautions 
This section contains important information pertaining to the operating 
instructions of your device. It also contains information about how to use the 
device safely. Read this information carefully before using your device. 
Electronic Device 
Power off your device if using the device is prohibited. Do not use the device 
when using the device causes danger or interference with electronic devices. 
Medical Device 
 
Follow rules and regulations set forth by hospitals and health care 
facilities. Do not use your device when using the device is prohibited. 
 
Pacemaker manufacturers recommend that a minimum distance of 15 
cm be maintained between a device and a pacemaker to prevent 
potential interference with the pacemaker. If you are using a pacemaker, 
use the device on the opposite side of the pacemaker and do not carry 
the device in your front pocket. 
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.