15
8.3 Guidance and manufacturer's declaration - electromagnetic immunity
The 4-Wheel Folding Scooter is intended for use in the electromagnetic environment specified below.The
customer or the user of the 4-Wheel Folding Scooter should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance
level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-
4-6
Radiated RF
IEC
61000-4-3
3Vrms
150 kHz to80MHz
6Vrms in ISM
bands
3
V/m
80 MHz to 2.7GHz
385MHz-
5785MHz Test
specifications
For ENCLOSURE
PORT
IMMUNITY to
RF
wireless
communicatio
n
equipment
(Refer to table 9
of EN 60601-
1-2:2015)
3Vrms
150 kHz to
80MHz
6Vrms in ISM
bands
3V/m
80 MHz to 2.7GHz
385MHz-
5785MHz Test
specifications
for ENCLOSURE
PORT
IMMUNITY to
RF
wireless
communication
equipment
(Refer to table 9
of EN 60601-
1-2:2015)
Portable and mobile RF communications equipment
should be used no closer to any part of the 4-Wheel
Folding
Scooter,
including
cables,
than
the
recommended separation distance calculated from the
equation applicable to the frequency of the
transmitter. Recommended separation distance
d=[3,5/V1]
x
P
1
12
d= 1.2x P
1
i
2
80 MHz to 800MHz
d= 2.3xP
1
i
2
800 MHz to 2.5GHz
Where P is the maximum output power rating of the
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
Distance in meters (m). Field strengths from fixed RF
transmitters, as determined by an electromagnetic site
survey,
a should
be less than the compliance level in
each frequency range.
b
Interference may occur in the vicinity of
Equipment marked with the following symbol:
NOTE 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reflection from structures, objects and people.
Field strengths from fixed transmitters,such as base stations for radio(cellular/cordless)telephones and land
mobile radios,amateur radio,AMandFMradiobroadcastandTVbroadcastcannotbepredicted theoretically with
accuracy.ToassesstheelectromagneticenvironmentduetofixedRFtransmitters,an electromagnetic site survey
should be considered.
If
the measured field strength in the location in which the 4-Wheel Folding Scooter is
used exceeds the applicable RF compliance level above, the 4-Wheel Folding Scooter should be observed to
verify normal operation.
If
abnormal performance is observed, additional measures maybe necessary,such as
re-orienting or relocating the4-WheelFoldingScooter.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 10V/m.
