24 Specifications Safety and Performance Tests
272
Portable and mobile RF communications equipment should be used no closer to any part of the
monitor, including cables, than the recommended separation distance calculated from the equation
appropriate for the frequency of the transmitter.
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 this symbol:
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 monitor is used exceeds the applicable RF compliance level above, the monitor should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as reorienting or relocating the monitor.
These guidelines may not apply in all situations. Electromagnetic propagation is affected by absorption
and reflection from structures, objects, and people.
Immunity test
IEC 60601-1-2
test level
Compliance level Electromagnetic environment guidance
Conducted RF
IEC 61000-4-6
3V
RMS
150 kHz to
80 MHz
3V
RMS
(1 V
RMS
for
respiration)
Recommended separation distance:
:
for respiration:
:
Radiated RF
IEC 61000-4-3
3V/m
80 MHz to
2.5 GHz
3V/m
(1 V/m for respiration)
For short range radio,
see note
1
.
1.If ECG/SpO
2
signals are acquired from a telemetry device via short range radio the compliance level is 3V/m except in
the range 2.0 to 2.3 GHz where it is 1 V/m.
Recommended separation distance:
80 MHz to 800 MHz
80 MHz to 800 MHz for respiration
:
800 MHz to 2,5 GHz
800 MHz to 2,5 GHz for respiration
2.0 to 2,3 GHz for short range radio
d1,2P=
d3,5P=
d1,2P=
d3,5P=
d2,3P=
d7,0P=
d7,0P=
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