Beurer BM 45 User Manual download pdf (Page 107)

107

Guidance and manufacture’s declaration – electromagnetic immunity – for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING

Guidance and manufacture’s declaration – electromagnetic immunity

The

BM45

blood pressure monitor is intended for use in the electromagnetic environment speciﬁed below. The customer or the user of the

BM45

blood pressure monitor should assure that it is used in such an environment.

Immunity test IEC 60601

test level

Compliance

level

Electromagnetic environment – guidance

Conducted RF

IEC 61000-4-6

Radiated RF

IEC 61000-4-3

3 V

rms

150 kHz to

80 MHz

3 V/m

80 MHz to

2.5 GHz

3 V

rms

3 V/m

Portable and mobile RF communications equipment should be used no closer to any part of the

BM45

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 ﬁxed RF transmitters, as determined by an electromagnetic site survey,

should be

less than the compliance level in each frequency range.

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 aected by absorption and reﬂection from structures,

objects and people.

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

BM45

blood

pressure monitor is used exceeds the applicable RF compliance level above, the

BM45

blood pressure monitor should be observed to verify nor-

mal operation. If abnormal performance is observed, additional measures may be necessary, such as reorienting or relocating the

BM45

blood

pressure monitor.

Over the frequency range 150 kHz to 80 MHz, ﬁeld strengths should be less than 3 V/m.

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