Beurer FM 150 Gebrauchsanweisung Seite 86

Table 3
Guidance and manufacturer's declaration – electromagnetic immunity
The device is intended for use in the electromagnetic environment specified 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
Conducted RF 3 V
rms
IEC 61000-4-6 150 kHz to
80 MHz
Radiated RF 3 V/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.
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones and land mobile
a
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 con-
sidered. 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.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
b
Table 4
The recommended isolation distance between portable and mobile RF communication device and device
This device is intended to be used in electromagnetic environment where RF interference is controlled, and according to
the maximum output power of communication equipment, buyer or user of this product can avoid electromagnetic inter-
ference by maintaining the minimum distance between portable and mobile RF communication equipment (transmitter)
and device.
Rated maximum output
power of transmitter
(W)
0.01
0.1
1
10
100
For rated maximum output power of transmitter that's not listed in the above chart, the recommended isolation distance d
(unit is meter/m) can be determined by corresponding equation in transmitter frequency column, P in the equation refers
to maximum rated output power of transmitter provided by its manufacturer (unit is watt/W).
NOTE 1 When the frequency is 80 MHz or 800 MHz, the equation of higher frequency should be adopted.
NOTE 2 This guidance can't possibly fit into all situations. Electromagnetic transmission is affected by buildings, objects,
and absorption and reflection of human body.
Compliance Electromagnetic environment – guidance
level
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:
3 V d = 1.2
rms
d = 1.2
d = 2.3
Where P is the maximum output power rating of the transmitter in watts (W)
3 V/m
according to the transmitter manufacturer and d is the recommended separa-
tion distance in meters (m).
Field strengths from fixed RF transmitters, as determined by an electromag-
netic site survey,
range.
b
Interference may occur in the vicinity of
equipment marked with the following symbol:
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
80 MHz to 800 MHz
800 MHz to 2.5 GHz
should be less than the compliance level in each frequency
a
(m)
80 MHz to 800 MHz
d = 1.2
0.12
0.38
1.2
3.8
12
86
800 MHz to 2.5 GHz
d = 2.3
0.23
0.73
2.3
7.3
23