FDA
Requirement
WARNING:
Radio wave sources may affect power wheel chair or scooter
control
.
Radio wave sources, such as radio stations, TV stations, amateur
radio (HAM) transmitters, two-way radios, and cellular phones,
can affect powered wheelchairs. Following the warnings listed
below should reduce the chance of unintended brake release or
powered wheelchair movement, which could result in serious
injury.
o
Do not turn ON hand-held personal communication
devices, such as citizens band (CB) radios and cellular
phones while a powered wheelchair is turned on;
o
Be aware of nearby transmitters, such as radio or TV
stations, and try to avoid coming close to them;
o
If unintended movement or brake release occurs, turn the
powered wheelchair OFF as soon as it is safe;
o
Be aware that adding accessories or components, or
modifying the powered wheelchair, may make it more
susceptible to interference from radio wave sources (Note:
there is no easy way to evaluate their effect on the overall
immunity of the powered wheelchair); and
o
Report all incidents of unintended movement or brake
release to the powered wheelchair manufacturer, and note
whether there is a radio wave source nearby.
o
20 volts per meter (V\m) is generally achievable and useful
immunity level against interference for radio wave sources
(as of May 1994) the higher the level, the greater the
protection);
o
The immunity level of this product is not known.
