Invacare Xterra GT Operating And Maintenance Manual page 15

GENERAL GUIDELINES
CAUTION: IT IS VERY IMPORTANT THAT YOU READ THIS
INFORMATION REGARDING THE POSSIBLE EFFECTS OF
ELECTROMAGNETIC INTERFERENCE ON YOUR POWERED
WHEELCHAIR.
Electromagnetic Interference (EMI) From Radio Wave sources
Powered wheelchairs and motorized scooters (in this text, both will be
referred to as powered wheelchairs) may be susceptible to
electromagnetic interference (EMI), which is interfering electromagnetic
energy (EM) emitted from sources such as radio stations, TV stations,
amateur radio (HAM) transmitters, two way radios, and cellular phones.
The interference (from radio wave sources) can cause the powered
wheelchair to release its brakes, move by itself, or move in unintended
directions. It can also permanently damage the powered wheelchair's
control system. The intensity of the interfering EM energy can be
measured in volts per meter (V/m). Each powered wheelchair can resist
EMI up to a certain intensity. This is called its "immunity level." The higher
the immunity level, the greater the protection. At this time, current
technology is capable of achieving at least a 20 V/m immunity level, which
would provide useful protection from the more common sources of
radiated EMI. This powered wheelchair model as shipped, with no further
modification, has an unknown immunity level.
Part No. 1106627
WARNING
15
SECTION 1
Xterra™GT™