iHealth BP5 Посібник користувача - Сторінка 13
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NOTE 1 At 80 MHz and 800 MHz, 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.
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 BP5 is used exceeds the applicable RF compliance level above, the BP5 should be observed to verify normal
operation. If abnormal performance is observed, additional measures may be necessary, such as re-orienting or relocating the BP5.
b) Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Field strengths from fixed RF transmitters, as determined by
an electromagnetic site survey,
should be less than the
a
compliance level in each frequency range.
b
Interference may occur in the vicinity of equipment
marked with the following symbol:
23
For ME EQUIPMENT and ME SYSTEMS that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the Wireless Blood Pressure Monitor
The Wireless Blood Pressure Monitor is intended for use in an electromagnetic environment in which radiated RF disturbances are
controlled. The customer or the user of the Wireless Blood Pressure Monitor can help prevent electromagnetic interference by
maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the Wireless Blood
Pressure Monitor as recommended below, according to the maximum output power of the communications equipment.
Separation distance according to frequency of transmitter
Rated maximum output
power of transmitter
150 kHz to 80 MHz
W
d
1
2 .
P
=
0.01
0.12
0.1
0.38
1
1.2
10
3.8
100
12
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in meters (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 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
Table 4
m
80 MHz to 800 MHz
800 MHz to 2,5 GHz
d
1
2 .
P
d
2
3 .
=
=
0.12
0.23
0.38
0.73
1.2
2.3
3.8
7.3
12
23
24
P