Medela Symphony Gebrauchsanweisung Seite 242

13. EMC / technical description
Electromagnetic Compatibility (EMC, IEC 60601-1-2:2007, Table 6)
Recommended separation distances between portable and mobile RF
communications equipment and the Symphony electric breast pump
The Symphony electric breast pump is intended for use in an electromagnetic environment in which
radiated RF disturbances are controlled. The customer or the user of the Symphony electric breast
pump can help prevent electromagnetic interference by maintaining a minimum distance between
portable and mobile RF communications equipment (transmitters) and the Symphony electric breast
pump as recommended below, according to the maximum output power of the communications
equipment.
Rated maxi-
mum output
power of trans-
mitter W
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in metres (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.
242
Note 2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
Separation distance according to frequency of transmitter M
150 kHz to 80 MHz
d = 0.35√P
0.04
0.11
0.35
1.11
3.50
80 MHz to
800 MHz
d = 1.2√P
0.12
0.37
1.2
3.7
12
800 MHz to 2.5 GHz
d = 2.3√P
0.23
0.74
2.3
7.4
23