sidhil Artemis - RF Immunity and Separation Distances

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Guidance and manufacture’s declaration – electromagnetic immunity
Immunity test IEC 60601 test level
Compliance
level
Electromagnetic environment – guidance
Portable and mobile RF communications
equipment should be used no closer to any
part of the Artemis control unit, including
cables, than the recommended separation
distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance
Conducted RF
IEC 61000-4-6
3 Vrms
150 kHz to 80 MHz
3 Vrms d=1.2√P
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m d=1.2√P80MHzto800MHz
d=2.3√P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 meters
(m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey
a
, 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 Artemis is used exceeds the applicable RF compliance level above, the Artemis should be observed
to verify normal operation. If abnormal performance is observed, additional measures may be necessary,
such as re-orienteering or relocating the Artemis.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.