OWNER’S MANUAL
31
Compact Scooter
15. EMC (EMI) Warnings
CAUTION:
IT IS VERY IMPORTANT THAT YOU READ THIS INFORMATION REGARDING
THE POSSIBLE EFFECTS OF ELECTRO MAGNETIC CONTAMINATION, (EMC)
ON YOUR MOBILITY SCOOTER. SOMETIMES THIS EFFECT IS ALSO KNOWN
AS ELECTRO MAGNETIC INTERFERENCE (EMI).
EMC (EMI) FROM RADIO-WAVE SOURCES.
Mobility scooters may be susceptible to EMC, which is interference from
electromagnetic energy (EM) emitted from sources such as radio stations, TV
stations, amateur (HAM) radio transmitters, two way radios and mobile
phones. The interference (from radio sources) can cause the mobility scooter
to release its brakes, move by itself, or move in an unintended way. Permanent
damage can also be done to the mobility scooter’s control system.
The intensity of the interfering EM energy can be measured in volts per meter
(V/m.). Each mobility scooter can resist EMC up to a certain intensity. This is
known as the scooter’s “immunity level”. The higher the immunity level, the
greater the protection.
Current technology offers useful protection of at least 20 V/m. which provides
protection from the more common sources of radiated EMC. There are a
number of relatively strong electromagnetic fields present in the everyday
environment. Most of these sources are obvious and easy to avoid, others are
not so obvious and can be unavoidable.
By following the warnings listed, your risk of exposure to EMC will be
minimized.
EMC sources can be broadly classified into three types:
1. Hand-held portable transceivers (transmitter-receivers with on-board
antenna). Examples are Walkie-Talkie, CB Radio, security, emergency services
and mobile phones. Note that some cellular phones can transmit signals while
they are switched on but not being used.
2. Medium range mobile transmitters such as those used on emergency
services vehicles, taxis etc. These usually have antennae mounted on the
outside of the vehicle.
3. Long-range transmitters and transceivers, such as commercial broadcast
transmitters (radio and TV broadcast antenna towers) and amateur (HAM)
radios.
ver 2019.05.30E
