Beurer BY40 Руководство по эксплуатации онлайн [101/104] 753115

Beurer BY40 Руководство по эксплуатации онлайн [101/104] 753115
101
Guidance and manufacturer’s declaration – electromagnetic immunity
The BY 40 is intended for use in the electromagnetic environment specified below. The customer or the user of the
BY 40 should assure that it is used in such an environment
Immunity test Test level
IEC 60601
Conformity level Electromagnetic environment – guidelines
Conduced RF
IEC61000-4-6
150KHz to 80MHz
3Vrms
6Vrms (in ISM
and amateur radio
bands)
80% Am at 1kHz
150KHz to 80MHz
3Vrms
6Vrms (in ISM and
amateur radio bands)
80% Am at 1kHz
Portable and mobile RF communications equip
-
ment should be used no closer to any part of the
BY 40, including cables, than the recommended
separation distance calculated from the equation
appropriate for the frequency of the transmitter.
Recommended separation distances:
d=1.2 P
d=2.3 P
Radiated RF
IEC61000-4-3
10V/m 10V/m
80MHz to
800MHz
d=1.2 P
800MHz to
2.7GHz
d=2.3 P
Where P is the maximum out
-
put power rating of the trans-
mitter in watts (W) according
to the transmitter manufac-
turer, d is the recommended
separation distance in meters
(m) Field strengths from fixed
RF transmitters, as deter-
mined by an electromagnetic
site surveya ,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 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 BY 40 is used exceeds
the applicable RF compliance level above, the BY 40 should be observed to verify normal operation. If abnormal
performance is observed, additional measures may be necessary, such as re-orienting or relocating the BY 40.
b.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.

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