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Guidance and manufacturers declaration – electromagnetic emissions
The device is intended for use in the electromagnetic environment specied below. The customer or
the user of the device should assure that it is used in such an environment.
Emissions test Compliance Electromagnetic environment – guidance
RF emissions
CISPR 11 Group 1 The device uses RF energy only for its internal function.
Therefore, its RF emissions are very low and are not likely
to cause any interference in nearby electronic equipment.
RF emissions
CISPR 11 Class B The device is suitable for use in all establishments, including
domestic establishments and those directly connected to the
public low-voltage power supply network that supplies build-
ings used for domestic purposes
Guidance and manufacturers declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environment specied below. The customer or
the user of the device should assure that it is used in such an environment.
Immunity test IEC 60601 test
level Compliance Electromagnetic environment –
guidance
Radiated RF
IEC 61000-4-3 10 V/m
80 MHz to 2.7 GHz
80% AM at 1KHz
10 V/m
80 MHz to 2.7 GHz
80% AM at 1KHz
Recommended separation distance
d = 1.2 √P
d = 1.2 √P 80 MHz to 800 MHz
d = 2.3 √P 800 MHz to 2.7 GHz
Where P is the maximum output power
rating of the transmitter in watts (W) ac-
cording to the transmitter manufacturer
and d is the recommended separation
distance in meters (m).
Field strengths from xed RF transmit-
ters, as determined by an electromag-
netic site survey,a should be less than
the compliance level in each frequency
range.
Interference may occur in the
vicinity of equipment marked
with the following symbol:
NOTA 1 At 80 MHz and 800 MHz, the higher frequency range applies.
NOTA 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and
reection from structures, objects and people.
a Field strengths from xed 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 xed RF transmitters, an electromagnetic site survey
should be considered. If the measured eld strength in the location in which the device is used exceeds the applica-
ble 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 reorienting or relocating the device.
6


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