Heartway Medical Products PF2 User Manual page 5

permanently damage the powered scooter's control system. The intensity of the EM
energy can be measured in volts per meter(V/m).Each powered scooter can resist EMI
up to a certain intensity. This is called "immunity level". The higher the immunity
level, the greater the protection. At this time, current technology is capable of
providing at least 20 V/m of immunity level, which would provide useful protection
against common sources of radiated EMI.
Following the warnings listed below should reduce the chance of unintended brake
release or powered scooter movement that could result in serious injury:
1,Do not turn on hand-held personal communication devices such as citizens band(CB)
radios and 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 interference from radio wave sources
(Note: It is difficult to evaluate the effect on the overall immunity of the powered
scooter).
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.Report all incidents of unintended movement or brake release to the powered
scooter manufacturer, and note whether there is a radio wave source nearby.
TURN OFF YOUR POWERED SCOOTER AS SOON AS POSSIBLE WHEN
EXPERIENCING THE FOLLOWING:
Unintentional scooter movements
Unintended or uncontrollable direction.
Unexpected brake release
The FDA has written to the manufacturers of power scooters asking them to test new
products to be sure they provide a reasonable degree of immunity against EMI. The
FDA requires that a powered wheelchair should have an immunity level at least 20
V/m, which provides a reasonable degree of protection against more common sources
of EMI. The higher the immunity level, the greater the protection. Your powered
scooter has an immunity level of 20 V/m which should protect against common
sources of EMI.
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