Areas With Flammables And Explosives; Operating Environment - Huawei HG659 Quick Start Manual

Areas with flammables and explosives

Do not use the device where flammables or explosives are stored (in a gas station, oil

depot, or chemical plant, for example). Using your device in these environments
increases the risk of explosion or fire. In addition, follow the instructions indicated in
text or symbols.
Do not store or transport the device in containers with flammable liquids, gases, or

explosives.

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. 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. Then, contact an authorized service center.
Observe local laws and regulations, and respect the privacy and legal rights of others.

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.
The device should be installed and operated with a minimum distance of 20 cm

between the radiator and your body.
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