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Care and maintenance
37
Electromagnetic immunity - Equipment with life support functions
Advisable separation distances between mobile and portable RF communications
equipment and the Apolus
The Apolus is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled.
The customer or user of the Apolus can help to prevent electromagnetic interference by maintaining a minimum
distance between the mobile and portable RF communications equipment (transmitters) and the Apolus as
recommended below, according to the maximum output power of the communication equipment..
Maximum output
power of the
transmitter W
Distance of separation according to the frequency of the transmitter (m)
150 kHz to 80 MHz
outside ISM bands
150 kHz to 80 MHz
outside ISM bands
80 MHz to 800 MHz
800 MHz to 2.5 GHz
0,01
0,35
1,2
0,12
0,23
0,1
1,1
3,8
0,38
0,73
1
3,5
12
1,2
2,3
10
11
38
3,8
7,3
100
35
120
12
23
For transmitters with a maximum output power not listed above, the advisable separation distance “d” in meters (m)
can be determined by using the equation applicable to the frequency of the transmitter, where “P is the maximum
output power of the transmitter in watts (W) according to the transmitter manufacturer..
NOTE 1 - At 80MHz and 800MHz, the separation distance for the highest frequency range is applied.
NOTE 2 - The ISM (industrial, medical and scientific) frequency bands between 150kHz and 80MHz are 6.765MHz
to 6.795MHz; 13.553 MHz to 13.567MHz; 26.957MHz to 27.283MHz; and 40.66MHz to 40.70MHz.
NOTE 3 - An additional factor of 10/3 is used in calculating the advisable separation distance for transmitters in
the ISM frequency bands between 150kHz and 80MHz and in the frequency range 80MHz to 2.5GHz to reduce
the likelihood of interference that mobile/portable communications equipment could cause if taken inadvertently to
patient areas.
NOTE 4 - These directives may not be applicable in all situation. Electromagnetic transmission is affected by the
absorption and reflection of structures, objects and people.
