Philips SureSigns VS1 Manuel D'utilisation page 64

Immunity
Test
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
At 80 MHz and 800 MHz, the higher frequency range applies.
These guidelines might 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 VS1 monitor is used exceeds the
applicable RF compliance level above, the VS1 monitor should be observed to verify normal operation. If
abnormal performance is observed, additional measures are necessary, such as re-orienting or relocating the VS1
monitor.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
A-4
Electromagnetic Compatibility
Table A-3. Electromagnetic Immunity (RF Radiated and Conducted)
IEC 60601
Test Level
3 Vrms
150 kHz to 80 MHz
3 V/m
80 MHz to 800 MHz
80 MHz to 2.5 GHz
Compliance Electromagnetic Environment -
Level
Portable and mobile RF communications
equipment should be used no closer to
any part of the VS1 monitor, including
cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of
the transmitter.
Recommended Separation Distance
3 Vrms
3 V/m
where P is the maximum output power
rating of the transmitter in watts (W)
according to the transmitter's specified
output power and d is the recommended
separation distance in meters (m).
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey,
less than the compliance level in each
frequency range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
Guidance
=
d 1 2 . P
=
d 1 2 . P
=
d 2 3 . P
a
should be
b