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Guidance and manufacturer's declaration - electromagnetic immunity
The device is intended for use in the electromagnetic environment specified below. The
user of the device should make sure that it is used in such an environment.
Immunity
IEC 60601
Test
Test Level
3 V
0.15 MHz ～
80 MHz
6 V in ISM
Conducted RF
and amateur
IEC
radio bands
61000-4-6
between
0.15 MHz
and 80 MHz
Radiated RF
IEC
61000-4-3
10 V/m
80 MHz to
2.7 GHz
Note 1: At 80 MHz and 800 MHz, the higher frequency range applied.
Note 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a
Field strengths from fixed transmitters, such as base stations for radio (cellular /
cordless) telephones and land mobile radios, amateur radio, AM and FM radio broadcast
and TV broadcast cannot be predicted theoretically with accuracy. To assess the
electromagnetic environment due to fixed RF transmitters, an electromagnetic site survey
should be considered. If the measured field strength in the location in which the device is
used exceeds the applicable RF compliance level above, the device should be observed to
verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as re-orienting or relocating the device.
b
Over the frequency range 150 kHz to 80 MHz, the field strengths should be less than 10
V/m.
E-20A-H-O / E-20AJ-H-O User Manual V2.3
Compliance
Level
3 V
0.15 MHz ～
80 MHz
6 V in ISM and
amateur radio
bands
between
0.15 MHz and
80 MHz
10 V/m
80 MHz to 2.7
GHz
33 / 36
Electromagnetic Environment -
Guidance
Portable
and
mobile
communications equipment should
be used no closer to any part of the
device, including cables, than the
recommended separation distance
calculated
from
the
applicable to the frequency of the
transmitter.
Recommended
distance
80 MHz to 800 MHz
800 MHz to 2.5 GHz
P
Where
is the maximum output
power rating of the transmitter in
watts
(W)
according
transmitter manufacturer and
recommended separation distance in
meters (m).
Field
strengths
from
transmitter, as determined by an
electromagnetic site survey,
be less than the compliance level in
b
each frequency range.
Interference may occur in the vicinity
of
equipment
marked with
following symbol:
RF
equation
separation
to
the
d
is the
fixed
RF
a
should
the
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