C.T.M. HS-1500 사용자 설명서 - 페이지 5

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HS-1500

ELECTROMAGNETIC INTERFERENCE

AND WARNINGS

CAUTION: It is very important that you read this information regarding the possible

effects of Electromagnetic Interference on your power chair.

Powered wheelchairs and motorized scooters may be susceptible to electromagnetic

interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources

such as radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios,

and cellular phones. The interference (from radio wave sources) can cause the power

chair to release its brakes, move by itself, or move in unintended directions. It can also

permanently damage the power chair control system. The intensity of the interfering

EM energy can be measured in volts per meter (V/m). Each power chair can resist EMI

up to a certain intensity. This is called its "immunity level." The higher the immunity level,

the greater the protection will be. At this time, current technology is capable of achieving

at least a 20 V/m immunity level, which would provide useful protection from the more

common sources of radiated EMI. The immunity level of this product is 20 (V/m).

There are a number of sources of relatively intense electromagnetic fields in the everyday

environment. Some of these sources are obvious and easy to avoid. Others are not

apparent and exposure is unavoidable. However, we believe that by following the warnings

listed below, your risk to EMI will be minimized.

Electromagnetic Interference and Warnings

The sources of radiated EMI can be broadly classified into three types:

1.Hand-held portable transceivers (transmitters-receivers) with the antenna mounted

directly on the transmitting unit. Examples include: citizens band (CB) radios,

"walkie talkie," security, fire, and police transceivers, cellular telephones, and other

personal communication devices.

Some cellular telephones and similar devices transmit signals while

they are ON, even when not being used.

2.Medium-range mobile transceivers, such as those used in police cars, fire trucks,

ambulances, and taxis. These usually have the antenna mounted on the outside of

the vehicle.

User's Manual