Beurer BC 20 - Manual (Page 66)

66
Guidance and manufacturer’s declaration – electromagnetic immunity – for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacturer’s declaration – electromagnetic immunity
The BC 20 Blood Pressure Monitor is intended for use in the electromagnetic environment specifi ed below. The customer or the user of
BC 20 Blood Pressure Monitor should assure that it is used in such an environment.
Immunity test IEC 60601
test level
Compliance
level Electromagnetic environment – guidance
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to
2.5 GHz
3 V/m
Portable and mobile RF communications equipment should be used no closer to any part
of the BC 20 Blood Pressure Monitor, including cables, than the recommended separation
distance calculated from the equation applicable to the frequency of the transmitter.
Recommended separation distance:
d =
d = 80 MHz to 800 MHz
d = 800 MHz to 2.5 GHz
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 metres (m).
Field strengths from fi xed 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:
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 aff ected by absorption and refl ection from
structures, objects and people.
a. Field strengths from fi xed 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 fi xed RF transmitters, an electromagnetic site survey should be considered. If the measured fi eld strength in the
location in which the BC 20 Blood Pressure Monitor is used exceeds the applicable RF compliance level above, the BC 20 Blood Pres-
sure Monitor should be observed to verify normal operation. If abnormal performance is observed, additional measures may be neces-
sary, such as reorienting or relocating the BC 20 Blood Pressure Monitor.