SE-1200 Series Electrocardiograph User Manual EMC Information
- 129 -
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM - for EQUIPMENT or
SYSTEM that is not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the 12-channel
Electrocardiograph
The 12-channel electrocardiograph
is intended for use in an electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the user of the 12-channel
electrocardiograph
can help prevent electromagnetic interference by maintaining a minimum
distance between portable and mobile RF communications equipment (transmitters) and the
12-channel electrocardiograph
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
P
d
2
.
1
=
80 MHz to 800 MHz
P
d
2
.
1
=
800 MHz to 2.5 GHz
P
d
3
.
2
=
0.01
0.12 0.12 0.23
0.1
0.38 0.38 0.73
1
1.2 1.2 2.3
10
3.8 3.8 7.3
100
12 12 23
For transmitters rated at a maximum output power not listed above, the recommended
separation distance d in meters (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.
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