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6
Guidance and manufacturer’s declaration – electromagnetic immunity
The UP-DF550 is intended for use in the electromagnetic environment specified below. The customer or the user of
the UP-DF550 should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment – guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the UP-DF550,
including cables, than the recommended separation
distance calculated from the equation appliance to the
frequency of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
outside ISM bands
c
3 Vrms
d
= 1.2
√
P
6 Vrms
150 kHz to 80 MHz
in ISM bands
c
6 Vrms
Radiated RF
3 V/m
3 V/m
IEC 60601-1-2: 2007
d
= 1.2
√
P
80 MHz to 800 MHz
d
= 2.3
√
P
800 MHz to 2.5 GHz
IEC 60601-1-2: 2014
d
= 2.0
√
P
80 MHz to 2.7 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 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 following symbol:
IEC 61000-4-3
80 MHz to 2.7 GHz
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.