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Questions? Visit www.medela.com or call us at 1-800-435-8316.
43
Recommended separation distances between portable and
mobile RF communications equipment and the breast pump
This 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 electric breast pump can help
prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the electric breast pump as recommended
below, according to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
W
Separation distance according to frequency of transmitter m
150 kHz to 80 MHz
d = 1.2√P
80 MHz to 800
MHz
d = 1.2√P
800 MHz to 2,7 GHz
d = 2.3√P
0,01 0,06 0,04 0,07
0,1 0,18 0,11 0,22
1 0,58 0,35 0,22
10 1,84 1,11 2,21
100 5,83 3,50 7,00
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.
Note 2 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects, and people.
WARNING: Portable RF communications equipment (including peripherals such as
antenna cables and external antennas) should be used no closer than 30 cm (12 inches)
to any part of the breast pump including cables specified by the manufacturer. Otherwise,
degradation of the performance of this equipment could result.
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