Medela Symphony Gebrauchsanweisung Seite 211

Electromagnetic Compatibility (EMC, IEC 60601-1-2:2007, Table 4)
Electromagnetic immunity
The Symphony breast pump is intended for use in the electromagnetic environment
specified below. The customer or the user of the Symphony electric breast pump
should ensure that it is used in such an environment.
Immunity IEC 60601
test test level
3 Vrms
Conducted RF 150 kHz to
IEC 61000-4-6 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
a
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
Symphony electric breast pump is used exceeds the applicable RF compliance level above, the Symphony
electric breast pump should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the Symphony electric breast
pump.
Field strengths should be less than 10 V/m over the 150 kHz to 80 MHz frequency range.
b
Compliance Electromagnetic
level environment – guidance
Portable and mobile RF communications equipment
should be used no closer to any part of the Symphony
electric breast pump, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency
of the transmitter.
Recommended separation distance
d = 0.35√P
d = 1.2√P 80 MHz to 800 MHz
3 Vrms
d = 2.3√P
where P is the maximum output power rating of the
3 V/m
transmitter in watts (W) according to the transmitter
manufacturer and d is the recommended separation
distance in metres (m).
Field strengths from fixed RF transmitters, as
determined by an electromagnetic site survey,
should be less than the compliance level in each
frequency range.
Interference may occur in the vicinity of equipment
marked with the following symbol:
800 MHz to 2.5 GHz
b
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a