Owner`s manual
10
Attention: Other types of hand-held devices, such as cordless phones, laptop computers, AM/FM
radios, TV sets, CD players, cassette and small appliances such as electric shavers and
hair dryers are not, so far as we know, likely to cause EMI problems to your power
chair .
POWER CHAIR ELECTROMAGNETIC INTERFERENCE (EMI)
Because electromagnetic energy rapidly becomes more intense as one moves closer to the
transmitting antenna (source), the electromagnetic fields from hand-held radio wave sources
(transceivers) are of special concern. It is possible to unintentionally bring high levels of
electromagnetic energy closer to the power control system of power chair while using these devices.
This can affect power chair movement and braking. Therefore, the warnings listed below are
recommended to prevent possible interference with the control system of the power chair .
WARNINGS
Electromagnetic interference (EMI) from sources such as radio and TV stations, amateur radio
(HAM) transmitters, two-way radios, and cellular phones can affect power chair and motorized
power chair. Following the warnings listed below should reduce the chance of unintended brake
release or power chair movement which could result in serious injury.
1. Do not operate hand-held transceivers-receivers, such as citizens band (CB) radios, or turn ON
personal communication devices such as cellular phones, while the powered power chair 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 power chair OFF as soon as it is safe;
4. Be aware that adding accessories or components, or modifying the powered power chair, may
make it more susceptible to EMI (Note: There is no easy way to evaluate their effect on the
overall immunity of the powered power chair ).
5. Report all incidents of unintended movement or brake release to the powered power chair
manufacturer, and note whether there is a source of EMI nearby,
3. EMI