Soehnle Professional 7752 Instrucciones De Uso página 49

8. Notes on electromagnetic compatibility
Recommended protective distances between portable and mobile RF telecommunica-
The scale of type series 7752 is intended for operation in the ELECTROMAGNETIC ENVIRONMENT indicated below.
The customer or the user of type 7752 scales can help to avoid electromagnetic interference by maintaining the
minimum distance between portable and mobile RF telecommunication devices (transmitters) and type 7752 scales,
depending on the output line of the communication device as indicated below.
Rated power of the
transmitter W
0,01
0,1
1
10
100
For transmitters whose rated power is not shown in the table above, the distance can be determined using the
equation associated with each column, where P is the rated power of the transmitter in watts (W) as specified by
the transmitter manufacturer.
NOTATION 1:
To calculate the recommended protective distance of transmitters in the frequency range 80MHz to 2.5 GHz, an
additional factor of 10/3 was used to reduce the probability that a mobile/portable communication device
inadvertently introduced into the patient area would lead to interference.
NOTATION 2:
These guidelines may not be applicable in all cases. The propagation of electromagnetic quantities is influenced
by absorption and reflections from buildings, objects and people.
tions equipment and 7752 series scales
Protective distance depends on the transmission frequency
150 kHz to 80 MHz
d = 1,2 √P
0,12
0,38
1,20
3,79
4,0
m
80 MHz to 800 MHz
d = 0,35 √P
0,04
0,11
0,35
1,11
3,50
800 MHz to 2,5 GHz
d = 0,7 √P
0,07
0,22
0,70
2,21
7,00
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