42
Guidance and manufacturer’s declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environments listed below,
and should only be used in such environments:
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
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a
Field strengths from
fi
xed transmitters, such as base stations for radio (cellular/cordless)
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cannot be predicted theoretically with accuracy. To assess the electromagnetic environment
due to
fi
xed RF transmitters, an electromagnetic site survey should be considered. If the measured
fi
eld strength in the location in which the device is used exceeds themapplicable 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.
b
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IMMUNITY TEST
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
IEC 60601
TEST LEVEL
7SNT
150 kHz
to 80 MHz
7N
80 MHz
to 2.5 GHz
COMPLIANCE
LEVEL
7SNT
7N
ELECTROMAGNETIC ENVIRONMENT
GUIDANCE
Portable and mobile RF communications
equipment should be used no closer
to any part of the device, including
cables, than the recommended
separation distance calculated from
the equation applicable to the frequency
of the transmitter.
Recommended separation distance
d
= 1.2
d
= 1.2 per 80 MHz a 800 MHz
d
= 2.3 per 800 MHz a 2.5 GHz
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 metres (m).
Field strengths from
fi
xed 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:
ENGLISH