Emi/Rfi - Pride Mobility Maxima SC900 Owner's Manual

I I I . E M I / R F I
EMI/RFI WARNINGS
Laboratory tests performed by the Food and Drug Administration (FDA) have shown that radio waves can
cause unintended motion of electric scooters. Radio waves are a form of electromagnetic energy (EM). When
electromagnetic energy adversely affects the operation of an electrical device, that adverse effect is called
Electromagnetic Interference (EMI) or Radio Frequency Interference (RFI).
EMI/RFI FREQUENTLY ASKED QUESTIONS (FAQS)
The following FAQs summarize what you should know about EMI/RFI. Use this information to minimize the
risk that EMI/RFI will adversely affect your scooter.
Where do radio waves come from?
Radio waves are emitted from the antennas of cellular phones, mobile two-way radios (such as walkie-talkies
and CBs), radio stations, TV stations, amateur radio (HAM) transmitters, wireless computer links, microwave
sources, and paging transmitters. Radio waves are a form of EM. Because EM is more intense closer to
transmitting antennas (sources of emission), the EM fields from two-way radios are of special concern to
electric scooter users.
If EMI/RFI affects my scooter, what kind of motion should I expect?
This is difficult to predict. The answer would depend on a number of factors:
n The strength of the radio waves.
n The construction of your particular scooter.
n The location of your scooter (whether it is on level ground or on an incline).
n Whether or not your scooter is in motion.
The motion of any electric scooter affected by EMI/RFI can be erratic. The scooter may come to a sudden stop
or move in an uncontrolled manner. Also, it is possible for EMI/RFI to release the brakes of an electric scooter.
Some intense EMI/RFI can even damage the control system components of an electric scooter.
Is there any way to know for certain whether or not radio waves are the cause of any unintended motion
of my scooter?
Unfortunately, EMI/RFI may be difficult to recognize, since the signals from radio sources are invisible and
may be intermittent. However, the FDA recommends that you report all incidents of unintended motion or
unintended brake release of your electric scooter to the scooter’s manufacturer and, if possible, determine
whether or not there was a radio wave source nearby at the time of the incident.
One precaution you can take against inadvertent motion of your scooter is to make certain that you or someone
else is not the cause of the unintended motion.
n Turn off your scooter by removing the key from the key switch when you are getting on or off of your scooter.
n Never leave the key in the key switch of an unattended scooter.
By following these steps, you greatly reduce the risk of you or anyone else inadvertently bumping the throttle
control levers and causing the scooter to move unintentionally.
Maxima 15