EMFIT Manual-SafeBed-SafeSeat-t46-v1-1-5-v3.0-ENG
www.emfit.com
20
Recommended separation distances between portable and mobile RF
communications equipment and the [EQUIPMENT or SYSTEM]
the emfit safebed bed / seat occupancy Monitor is intended for use in an electromagnetic
environment in which radiated Rf disturbances are controlled. the customer or the user of the emfit
safebed bed / seat occupancy Monitor can help prevent electromagnetic interference by maintaining
a minimum distance between portable and mobile Rf communications equipment (transmitters) and
the emfit safebed bed / seat occupancy Monitor alarm 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
0,01
0,12 m
0,12 m
0,23 m
0,1
0,37 m
0,37 m
0,73 m
1
1,17 m
1,17 m
2,33 m
10
3,69 m
3,69 m
7,38 m
100
11,67 m
11,67 m
23,33 m
for transmitters rated at a maximum output power not listed above, the recommended separation
distance
d
in metres (m) can be determined 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
the IsM (industrial, scientific and medical) bands between 150 kHz and 80 MHz are 6,765
MHz to 6,795 MHz; 13,553 MHz to 13,567 MHz; 26,957 MHz to 27,283 MHz; and 40,66
MHz to 40,70 MHz.
NOTE 3
An additional factor of 10/3 is used in calculating the recommended separation distance for
transmitters in the IsM frequency bands between 150 kHz and 80 MHz and in the frequency
range 80 MHz to 2,5 GHz to decrease the likelihood that mobile/portable communications
equipment could cause interference if it is inadvertently brought into patient areas.
NOTE 4
these guidelines may not apply in all situations. electromagnetic propagation is affected by
absorption and reflection from structures, objects and people.
