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12 Part No. 1118395
®
GENERAL GUIDELINESSECTION 1
GENERAL GUIDELINES
EMI WARNINGS (CONTINUED)
POWERED SCOOTER ELECTROMAGNETIC INTERFERENCE (EMI)
Because EM energy rapidly becomes more intense as one moves 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 powered
scooter's control system while using these devices. This can affect powered
scooter movement and braking. Therefore, the warnings listed are
recommended to prevent possible interference with the control system of
the powered scooter.
Electromagnetic interference (EMI) from sources such as radio and TV
stations, amateur radio (HAM) transmitters, two-way radios, and cellular
phones can affect powered scooters. Following the warnings listed should
reduce the chance of unintended brake release or powered scooter
movement which could result in serious injury.
1) 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 powered scooter is turned
ON;
2) Be aware of nearby transmitters, such as radio or TV stations, and try
to avoid coming close to them;
3) If unintended movement or brake release occurs, turn the powered
scooter OFF as soon as it is safe;
4) Be aware that adding accessories or components, or modifying the
powered scooter, may make it more susceptible to EMI (Note: There
is no easy way to evaluate their effect on the overall immunity of the
powered scooter); and
5) Report all incidents of unintended movement or brake release to the
powered scooter manufacturer, and note whether there is a source of
EMI nearby.
IMPORTANT INFORMATION
1) 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).
2) While this product as shipped has been tested and is immune to signal
levels up to 20V/m, the maximum immunity level of the product is
unknown.