Note:
Other types of hand-held devices, such as
cordless phones, laptop computers, AM/FM radios,
TV sets, CD players, and cassette players, and
small appliances, such as electric shavers and hair
dryers, so far as we know, are not likely to cause
EMI problems to motorized scooters.
Motorized 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 motorized scooter’s control
system while using these devices. This can affect
the scooter’s movement and braking. Therefore,
the warnings listed below are recommended to
prevent possible interference with the control
system of your Mantis.
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 powered
wheelchair 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 an cellular
phones, while your Mantis 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 your Mantis power switch OFF
as soon as it is safe to do so;
4) Be aware that adding accessories or
components, or modifying your Mantis, may
make it more susceptible to EMI (Note: There
is no easy way to evaluate their effect on the
overall immunity of your Mantis);
5) Report all incidents of unintended movement or
brake release to your Authorized Mantis dealer
or service center, and note whether there is a
source of EMI nearby.
EMI – electromagnetic interference
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