Part No. 1114822
11
Tilt/Recline Seating Systems®
GENERAL GUIDELINES
SECTION 1
WARNING (CONTINUED)
Powered Wheelchair 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 unin-
tentionally bring high levels of EM energy very close to the powered
wheelchair's control system while using these devices. This can affect
powered wheelchair movement and braking. Therefore, the warnings
listed are recommended to prevent possible interference with the control
system of the powered wheelchair.
Electromagnetic interference (EMI) from sources such as radio and TV
stations, amateur radio (HAM) transmitters, two-way radios, and cellular
phones can affect powered wheelchairs and motorized scooters.
WARNING (CONTINUED)
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 as cellular phones, while the powered wheelchair 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
wheelchair OFF as soon as it is safe.
4) Be aware that adding accessories or components, or modifying the
powered wheelchair, may make it more susceptible to EMI (Note:
There is no easy way to evaluate their effect on the overall immunity
of the powered wheelchair); and
5) Report all incidents of unintended movement or brake release to the
powered wheelchair 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 (as of May 1994) (the higher the level, the greater
the protection);
2) The immunity level of this product is not known.
Modification of any kind to the electronics of this wheelchair as manufa-
tured by Invacare may adversely affect the RFI immunity levels.
GENERAL
GUIDELINES
