BIOTRONIK Reocor S Manual Tecnico página 38

35
Rated power of Safe distance d [m] corresponding to transmission frequency
the transmitter
150 kHz to
P [W]
80 MHz outside
the ISM bands
d = 0.35
0.01 0.04
0.10 0.11
1.00 0.35
10.00 1.11
100.00 3.50
For transmitters whose rated power is not specified in the table above, the safe distance can be
calculated using the specified formula for the corresponding frequency. Here P is the rated power
of the transmitter in watts [W] and d is the safe distance in meters [m].
COMMENT 1: The ISM bands (for industrial, scientific and medical applications) between 150 kHz
and 80 MHz are 6.765 MHz to 6.795 MHz; 13.553 MHz to 13.567 MHz; 26.957 MHz to 27.283 MHz
and 40.66 MHz to 40.70 MHz.
COMMENT 2: The compliance level in the ISM frequency bands between 150 kHz and 80 MHz and
in the frequency range 80 MHz to 2.5 GHz is designed to reduce the likelihood that mobile com-
munication devices cause interference if they are unintentionally brought into the patient area.
For this reason a greater safety distance is recommended in these frequency ranges (factor 1.2
instead of 0.35).
COMMENT 3: These guidelines do not necessarily apply in all situations. The spread of electro-
magnetic waves is influenced by absorption and reflection from buildings, objects, and humans.
Recommended safe distances to portable and mobile RF
communications equipment (IEC 60601-1-2: Table 5)
The device is intended for use in an electromagnetic environ-
ment, in which the RF interference is controllable. The user of
the device can help to prevent electromagnetic interference
by maintaining the safe distance to mobile RF communication
equipment (transmitters) - depending on the power output of
the communication equipment.
150 kHz to
80 MHz inside the
ISM bands
P d = 1.2
0.12
0.38
1.20
3.79
12.00
80 MHz to
800 MHz
P d = 1.2 P
0.12
0.38
1.20
3.79
12.00
800 MHz to
2.5 GHz
d = 2.3 P
0.23
0.73
2.30
7.27
23.00