Zimmer Sonido Smart, Инструкция по эксплуатации, Страница: 168 / 173

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3. Guidelines and manufacturer’s declaration – Electromagnetic immunity
The SONIDOSMART is intended for use in the electromagnetic environment specified below. The customer or user
of the SONIDOSMART should ensure that it is used in such an environment.
Immunity
tests
IEC 60601 test
level
Compliance level Electromagnetic environment – Guidelines
Conducted
RF
disturbance
in
accordance
with IEC
61000-4-6
Radiated
RF
disturbance
s
in
accordance
with IEC
61000-4-3
3 V
RMS
150 KHz to 80
MHz
3 V/m
80 MHz to 2.5
GHz
3 V
RMS
150 KHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
Portable and mobile RF communications
equipment should be used no closer to any part
of the SONIDOSMART unit, including cables,
than the recommended safety separation
distance calculated from the equation applicable
to the frequency of the transmitter.
Recommended safety separation distance:
d = 1.2 √P
d = 1.2√P for 80 MHz to 800 MHz
d = 2.3 √P for 800 MHz to 2.5 GHz
where P is the power rating of the transmitter in
watts (W) according to the specifications of the
transmitter manufacturer and d is the
recommended safety separation distance in
metres (m).
The field strengths of fixed RF transmitters, as
determined by an on-site survey, should for all
frequencies be less than the compliance level
a b
.
Interferences are possible in the vicinity of
devices marked with the following symbol:
NOTE 1: At 80 and 800 MHz, the higher frequency range applies.
NOTE 2 These guidelines may not apply in all cases. Electromagnetic propagation is affected by absorption and
reflection from buildings, objects and people.
a
The field strengths of fixed transmitters e.g. base stations of mobile telephones and mobile radio devices,
amateur radio stations, AM and FM radio and TV broadcasters, cannot be predicted theoretically with any accuracy. In
order to assess the electromagnetic environment with regard to fixed RF transmitters, a study of the electromagnetic
phenomena at the location should be considered. If the measured field strength in the location in which the
SONIDOSMART is used exceeds the compliance level given above, the SONIDOSMART should be monitored in order
to verify that it functions as intended. If abnormal performance is observed, additional measures may be necessary, such
as reorientating or relocating the SONIDOSMART unit.
b
In the frequency range of 150 kHz to 80 MHz, the field strengths should be less than 3 V/m.