Operating Environment; Accessories; Cleaning And Maintenance - Huawei B535-333 Installationsanleitung

Operating environment

• Avoid dusty, damp, or dirty environments. Avoid magnetic fields. Using the device in these environments may result in
circuit malfunctions.
• Before connecting and disconnecting cables, stop using the device and disconnect it from the power supply. Ensure that
your hands are dry during operation.
• Place the device on a stable surface.
• Keep the device away from electronic appliances that generate strong magnetic or electric fields, such as a microwave
oven or refrigerator.
• During thunderstorms, power off your device and remove all cables connected to it to protect against lightning strikes.
• Do not use your device during thunderstorms to protect your device against any danger caused by lightning.
• Ideal operating temperatures are 0 °C to 40 °C. Ideal storage temperatures are -20 °C to +70 °C. Extreme heat or cold
may damage your device or accessories.
• Keep the device and accessories in a well-ventilated and cool area away from direct sunlight. Do not enclose or cover
your device with towels or other objects. Do not place the device in a container with poor heat dissipation, such as a box
or bag.
• To protect your device or accessories from fire or electrical shock hazards, avoid rain and moisture.
• Keep the device away from sources of heat and fire, such as a heater, microwave oven, stove, water heater, radiator, or
candle.
• Do not place any object, such as a candle or a water container, on the device. If any foreign object or liquid enters the
device, immediately stop using it, power it off, and remove all cables connected to it.
• Do not block device openings. Reserve a minimum of 10 cm around the device to dissipate heat.
• Stop using your device or applications for a while if the device is overheated. If skin is exposed to an overheated device
for an extended period, low temperature burn symptoms, such as red spots and darker pigmentation, may occur.
• Do not touch the device's antenna. Otherwise, communication quality may be reduced.
• Do not allow children or pets to bite or suck the device or accessories. Doing so may result in damage or explosion.
• Observe local laws and regulations, and respect the privacy and legal rights of others.
• The device should be installed and operated with a minimum distance of 20 cm between the radiator and your body.
• Keep the device in a place with good reception. The distance between the device and other metal materials (such as
metal brackets or metal doors and windows) should be greater than 25 cm and the distance between the device should be
greater than 30 cm.
• To avoid risking injury, do not touch heated parts.
Child's safety
• Comply with all precautions with regard to child's safety. Letting children play with the device or its accessories may be
dangerous. The device includes detachable parts that may present a choking hazard. Keep away from children.
• The device and its accessories are not intended for use by children. Children should only use the device with adult
supervision.

Accessories

• Using an unapproved or incompatible power adapter, charger or battery may cause fire, explosion or other hazards.
• Choose only accessories approved for use with this model by the device manufacturer. The use of any other types of
accessories may void the warranty, may violate local regulations and laws, and may be dangerous. Please contact your
retailer for information about the availability of approved accessories in your area.
Power adapter safety
• The power plug is intended to serve as a disconnect device.
• For pluggable devices, the socket-outlet shall be installed near the devices and shall be easily accessible.
• Unplug the power adapter from electrical outlets and the device when not in use.
• Do not drop or cause an impact to the power adapter.
• If the power cable is damaged (for example, the cord is exposed or broken), or the plug loosens, stop using it at once.
Continued use may lead to electric shocks, short circuits, or fire.
• Do not touch the power cord with wet hands or pull the power cord to disconnect the power adapter.
• Do not touch the device or the power adapter with wet hands. Doing so may lead to short circuits, malfunctions, or electric
shocks.
• Ensure that the power adaptor meets the requirements of Annex Q of IEC/EN 62368-1 and has been tested and approved
according to national or local standards.

Cleaning and maintenance

• During storage, transportation, and operation of the device, keep it dry and protect it from collision.
• Keep the device and accessories dry. Do not attempt to dry it with an external heat source, such as a microwave oven or
hair dryer.
• Do not expose your device or accessories to extreme heat or cold. These environments may interfere with proper function
and may lead to fire or explosion.
• Avoid collision, which may lead to device malfunctions, overheating, fire, or explosion.
• If the device is not going to be used for an extended period of time, power it off, and remove all cables connected to it.
• If anything unusual occurs (for example, if the device emits smoke or any unusual sound or smell), immediately stop using
it, power it off, and remove all cables connected to it.
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