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9. SAFETY INFORMATION ON ELECTRONIC INTERFERENCE (EMI)
CAUTION:
• It is very important that you read this information regarding the possible effects
of Electromagnetic Interference on your motorized scooter.
Powered wheelchairs and motorized scooters may be susceptible to electromagnetic
interference (EMI), which is interfering electromagnetic energy (EM) emitted from sources
such a radio stations, TV stations, amateur radio (HAM) transmitters, two-way radios, and
cellular phones. The interference (from radio wave sources) can cause the motorized
scooter to release its brakes, move by itself, or move in unintended directions. It can also
permanently damage the motorized scooter control system. The intensity of the interfering
EM energy can be measured in volts per meter (V/m). Each motorized scooter can resist EMI
up to certain intensity. This is called its “immunity level.” The higher the immunity level, the
greater the protection. 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. This immunity level of this motorized scooter model 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.
TILLER ANGLE ADJUSTMENT
• 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.
CAUTION:
• Some cellular telephones and similar devices transmit signals while they are ON,
even when not being used.
