Motorized Scooter Electromagnetic Interference:
Because EM energy rapidly becomes more intense as one move closer to the transmitting
antenna (source), the EM fields from hand-held radio wave sources (transceivers) are of special
concern. It is possible to unintentionally bring high levels of EM energy very close to the motorized
scooter control system while using these devices. This can affect motorized scooter movement
and braking. Therefore, the warnings listed below are recommended to prevent possible
interference with the control system of the motorized scooter.
Warnings:
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio
(HAM) transmitters, two-way radios, and cellular phones can affect motorized scooters. Following
the warnings listed below should reduce the chance of unintended brake release or motorized
scooter movement which could result in serious injury.
• Do not operate hand-held transceivers (transmitters-receivers), such as citizens band (CB)
radios, or turn ON personal communication devices, such as cellular phones, while the
motorized scooter is turned ON;
• Be aware of nearby transmitters, such as radio or TV stations, and try to avoid coming close to
them;
• If unintended movement or brake release occurs, turn the motorized scooter OFF as soon as it
is safe;
• Be aware that adding accessories or components, or modifying the motorized scooter, may
make it more susceptible to EMI; and
CAUTION: There is no easy way to evaluate their effect on the overall immunity of the
motorized scooter.
• Report all incidents of unintended movement or brake release to the distributor listed on the
inside front cover of this manual. Note whether there is a source of EMI nearby.
Important Information:
• 20 volts per meter (V/m) is a generally achievable and useful immunity level against EMI (as of
May 1994). The higher the level, the greater the protection.
• The immunity level of this product is 20 V/m.
Instruction Booklet: Safety Infomation on Electronic Interference (EMI)
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