Bionet SpiroCare, Руководство по эксплуатации, Страница: 132 / 135

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SCOMBA-1.1
SpiroCare Operation Manual
a
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast and TV
broadcast cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey should be
considered. If the measured field strength in the location in which the SpiroCare is used
exceeds the applicable RF compliance level above, the SpiroCare should be observed to
verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the SpiroCare.
b
Over the frequency range 150 kHz to 80 MHz, field strength should be less than 3 V/m
Recommended separation distances between
portable and mobile RF communications equipment and the SpiroCare
The SpiroCare is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the SpiroCare can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the SpiroCare 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
[m]
150 kHz to 80 MHz 80 MHz to 800 MHz
800 MHz to
2,5 GHz
V1= 3 Vrms E
1
= 3 V/m E1= 3 V/m
0.01 0.12 0.12 0.23
0.1 0.37 0.37 0.74
1 1.17 1.17 2.33
10 3.69 3.69 7.38
100 11.67 11.67 23.33
For transmitters rated at a maximum output power not listed above, the recommended
separation distance
d
in meters (m) can be estimated 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 These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.