MINOS POWER Manual De Uso Y Mantenimiento página 26

exposure is unavoidable. However, we believe that the following warnings can minimise the risk of
EMC effects.
The sources of EMC radiation can be roughly classified into 3 types:
1. Portable transceivers (transmitters-receivers with the aerial assembled directly on the transmis
sion unit). Examples include: 27 MC band, "walkie-talkie", security, fire brigade and police trans
ceivers, cell phones and other personal communication equipment.
NOTE: Some cell phones and similar equipment transmit signals when they are on, even if they are
not in use.
2. Medium-range mobile transceivers, such as those used in police patrol cars, fire engines, ambu
lances sand taxis. These usually have an aerial mounted on the outside of the vehicle.
3. Long-range transmitters en transceivers, such as commercial transmitters (radio and TV masts)
and amateur radio transmitters.
NOTE: As far as we know, other types of equipment, such as laptop computers, AM/FM radios, TV
sets, c.d. players, cassette recorders, and small devices such as electrical shavers and hairdryers en do
not cause any EMC problems for your electronic wheelchair.
Electromagnetic Interference with electronic wheelchairs (EMC)
EM energy rapidly becomes stronger the closer one is to the transmission aerial; hence the EM fields
of portable radio sound wave sources (transceivers) are of particular concern. It is possible that you
unintentionally bring high levels of EM energy in the vicinity of the control system of your electro-
nic wheelchair while using this equipment. This can affect the movement and brakes of the elec-
tronic wheelchair. Therefore, we give the following warnings to prevent possible interference with
the control system of the electronic wheelchair.
Electromagnetic interference (EMC) from sources such as radio and TV stations, amateur radio trans-
mitters, walkie-talkies, and cell phones can affect electrical wheelchairs. If you follow the warnings
below, you will reduce the chance of unintentional braking or movement and thereby reduce the
chance of physical injury.
1. Do not operate portable transceivers (transmitters, receivers) such as a 27 MC band transmitter
and do not switch on personal communication equipment, such as a cell phone, while the elec
tronic wheelchair is on.
2. Pay attention when you are in the vicinity of strong transmitters, such as radio or TV stations.
Try to avoid these locations whenever possible.
3. If unintentional movement or disengaging of the motor brake does occur, then turn the power
on the electronic wheelchair OFF as soon as it is safe to do so.
4. Caution! Installing accessories or components that are not approved, or making changes to the
electronic wheelchair, can make it more sensitive to EMC
NOTE: there is no easy way to evaluate the effect on the general immunity of the electronic wheel-
chair.
5. Report all incidents of unintentional wheelchair movement or brakes disengaging to the manu
facturer and make a note whether there was an EMC source in the vicinity.
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