Instruction Manual for Sicurao pesa Hospital Bed
Page
82
Guidelines and Manufacturer’s Declaration – Resistance to Electromagnetic Interference –
Recommended protection distances between portable or mobile HF communication devices
and the BED
The BED is intended for use in an electromagnetic environment in which radiated HF interference is controlled. The operator or
user of the BED can help to avoid electromagnetic interference by keeping a minimum distance between the BED and any
portable or mobile communications devices (transmitters)
–
irrespective of the output characteristics of the communications
device, as described below.
Power
rating of
the
transmitter
[W]
Protection distance (d) dependent on the transmission frequency [m]
150 kHz to 80 MHz
80 MHz to 800 MHz
800 MHz to 2.5 GHz
d = 1.2 (P)
1/2
d = 1.2 (P)
1/2
d = 2.3 (P)
1/2
0.01
0.12
0.12
0.24
0.1
0.37
0.37
0.74
1
1.17
1.17
2.34
10
3.69
3.69
7.38
100
11.67
11.67
23.34
For transmitters whose maximum power rating is not listed in the above table, the distance can be determined
using the equation given in the relevant column, where
P
is the maximum power rating of the transmitter in watts
(W) as stated by the manufacturer of the transmitter.
Note 1:
The higher frequency range applies for 80 MHz and 800 MHz.
Note 2:
These guidelines may not be applicable in all circumstances. The propagation of electromagnetic interference is
affected by buildings, objects and people due to absorption and reflection.
