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Guidance and manufacturer's declaration – electromagnetic immunity
The Rudolf Riester GmbH 222B device is intended for use in the electromagnetic
environment specified below. The customer or the user of the Rudolf Riester GmbH
222B device should assure that it is used in such an environment.
Immunity test
IEC
60601
test
level
Conducted RF
IEC 61000-4-6
N/A
Radiated RF
3V/m
IEC 61000-4-3
80 MHz
to 2.5
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.
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 SunTech 222B
device is used exceeds the applicable RF compliance level above, the Rudolf Riester GmbH 222B 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 Rudolf Riester GmbH 222B device. b Over the frequency range
150 kHz to 80 MHz, field strengths should be less than 3 V/m.
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Compliance
Electromagnetic
level
environment – guidance
Portable and mobile RF
communications equipment should
be used no closer to any part of the
SunTech 222B, 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] √P
N/A
d = [3.5/E1] √P
80MHz to 800MHz
d = [7/E1] √P
800MHz to 2.5GHz
3 V/m
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:
Recommended separation distances between portable and mobile RF
communications equipment and the SunTech 222B device
The Rudolf Riester GmbH 222B device is intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or
the user of the Rudolf Riester GmbH 222B device can help prevent electromagnetic
interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Rudolf Riester GmbH 222B
device as recommended below, according to the maximum output power of the
communications equipment.
Separation distance according to frequency of transmitter m
Rated maximum
output power of
transmitter
150 kHz to 80 MHz
W
d = [3.5/V1] √P
0.01
N/A
0.10
N/A
1
N/A
10
N/A
100
N/A
For transmitters rated at a maximum output power not listed above, the
recommended separation distance d in meters (m) can be estimated using the
equation applicable to the frequency of the transmitter, where P is the maximum
output power rating of the transmitter in watts (W) according to the transmitter
manufacturer.
NOTE 1—At 80 MHz and 800 MHz, the separation distance for 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.
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80 MHz to 800 MHz
800MHz to 2.5GHz
d = [3.5/E1] √P
d = [7/E1] √P
0.12
0.23
0.38
0.73
1.2
2.3
3.8
7.3
12
23
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