EDAN iM8 - A2.4 Recommended Separation Distances

Patient Monitor User Manual EMC Information
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A2.4 Recommended Separation Distances
Recommended separation distances between
portable and mobile RF communications equipment and the monitor
The patient monitors of iM8 & M8 series are intended for use in an electromagnetic
environment in which radiated RF disturbances are controlled. The customer or the user of the
iM8 & M8 series patient monitors can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile RF communications equipment (transmitters)
and the monitor 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
Pd 2.1
80 MHz to 800 MHz
Pd 2.1
800 MHz to 2.7 GHz
Pd 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 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.