Safety
4-20 Versana Essential – User Guide
5759238-100 English
Rev. 2
EMC Performance (continued)
Portable and mobile radio communications equipment (e.g.
two-way radio, cellular/cordless telephones and similar
equipment) should be used no closer to any part of this system,
including cables, than determined according to the following
method:
Table 4-2: Portable and mobile radio communications equipment distance
requirements
Frequency Range: 150 kHz - 80 MHz 80 MHz - 800 MHz 800 MHz - 2.5 GHz
Calculation Method: d=[3.5/V
1
] square root
of P
d = [3.5/E
1
] square root
of P
d = [7/E
1
] square root of
P
Where: d= separation distance in meters, P = rated power of the transmitter, V
1
=compliance value for
conducted RF, E
1
= compliance value for radiated RF
If the maximum
transmitter power in
watts is rated
The separation distance in meters should be
5 2.6 2.6 5.2
20 5.2 5.2 10.5
100 12.0 12.0 24.0
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
[MEDICAL ELECTRICAL EQUIPMENT or MEDICAL
ELECTRICAL SYSTEM], including cables specified by the
manufacturer. Otherwise, degradation of the performance of
this equipment could result.
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