Guidance and manufacturer’s declaration - electromagnetic immunity
The BM2301 is intended for use in the electromagnetic environment specified below. The customer or the user of the BM2301 should assure that it is used in such an environment.
Portable and mobile RF communications equipment should be used no closer to any part of the BM2301, including cables,
than the recommended
separation distance calculated from the equation applicable to the frequency of the transmitter.
Recommended separation distance:
where P is the maximum output power rating of the transmitter in watts (W) according to the transmitter manufacturer and d
is the recommended separation distance in meters (m).
Field strengths from fixed RF transmitters, as determined by an electromagnetic site survey, a should be less than the
compliance level in each frequency range b.
Interference may occur in the vicinity of equipment marked with the following symbol:
Recommended separation distances between portable and mobile RFcommunications equipment and the BM2301
The BM2301 is intended for use in an electromagnetic environment in which radiated therefore disturbances are controlled. The customer or the user of the BM2301
can help prevent electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
BM2301 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 MHz80 MHz to 800 MHz800 MHz to 2,5 GHz
0,010,120,120,23
0,10,380,380,73
11,21,22,3
103,83,87,3
100121223
For transmitters rated at a maximum output power not listed above, the recommended separation distance d in metres (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.
NOTE1 To calculate the recommended separation distance of transmitters in the frequency range of 80 MHz and 800 MHz to 2.5 GHz, an additional factor of 10/3 has
been used in order to reduce the probability of a mobile/portable communications BM2301 unintentionally introduced into the patient area causing a fault.
NOTE2 These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption and reflection from structures, objects and people.
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