Activeforever Image EC Mid Wheel Drive Reclining Power Wheelchair - Manual (Page 9)

8
3. EMI
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 likely to cause EMI problems with your power operated vehicle.
■
POWER OPERATED VEHICLE 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 control system of a power
operated vehicle 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 your power operated vehicle.
Following the warnings listed below should reduce the chance of unintended brake release or power
operated vehicle 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 power operated vehicle 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 operated vehicle OFF as soon as it
is safe;
4. Be aware that adding accessories or components, or modifying the power operated vehicle may
make it more susceptible to EMI (Note: There is no easy way to evaluate their effect on the overall
immunity of the power operated vehicle.
5. Report all incidents of unintended movement or brake release to the power operated vehicle’s
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
( the higher the level, the greater the protection);
2. This product has an immunity level of 20 V/m without any accessories and connected to it.