Notes On Emc - Atmos M2 Manual De Instrucciones

10.0
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines might not be applicable in any case. The propagation of electromagnetic sizes is
infl uenced by absorptions and refl ections of buildings, objects and people.
a The fi eld strength of stationary transmitters, such as base stations of cellular phones and mobile terrain radio
equipment, amateur radio transmitters, cbm broadcast and TV stations cannot be predestined exactly.
To determine the electromagnetic environment in regard to stationary transmitters, a study of the location is to
be considered. If the measured fi eld strength at the location where the ATMOS Patient chair M2 is used
exceeds the above compliance level, the ATMOS Patient chair M2 is to be observed to verify the intended
use.
If abnormal performance characteristics are noted, additional measures might be necessary, e. g. a changed
arrangement or another location for the device.
b Within the frequency range of 150 kHz to 80 MHz the fi eld strength is to be below 3 V/m.
10.4 Recommended separations between portable and mobile RF Communications
equipment and the ATMOS Patient chair M2
Recommended separations between portable and mobile RF Communications
The ATMOS Patient chair M2 is intended for use in electromagnetic environment in which radiated disturbances
are controlled. The customer or user of the ATMOS Patient chair M2 can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF Communications equipment and the
ATMOS Patient chair M2 as recommended below, according to the maximum output power of the communications
equipment.
Nominal output of the
transmitter
W
0,01
0,1
1
10
100
For transmitters for which the maximum nominal output is not indicated in the above table, the recommended
separation distance d in meters (m) can be determined using the equation belonging to the respective column
whereas P is the maximum nominal output of the transmitter in watts (W) acc. to manufacturer´s specifi cation.
NOTE 1 With 80 MHz and 800 MHz the higher frequency range applies.
NOTE 2 These guidelines might not be applicable in any case. The propagation of electromagnetic sizes is
infl uenced by absorptions and refl ections of buildings, objects and people.
equipment and the ATMOS Patient chair M2
Separation distance, depending on transmit-frequency m
150 kHz bis 80 MHz
d = 3,5/3 √ P
0,12
0,37
1,17
3,7
11,7
80 MHz bis 800 MHz
d =3,5/10 √ P
0,035
0,11
0,35
1,1
3,5
800 MHz bis 2,5 GHz
d = 7/10 √ P
0,07
0,22
0,7
2,2
7
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