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Manuel Utilisateur de Série de Poche Ultrasonique Doppler SONOTRAX
A1.3 Electromagnetic Immunity - for all Equipment and
Systems that are not Life-supporting
Guidance and manufacture's declaration – electromagnetic immunity
The SONOTRAX Series Ultrasonic Pocket Doppler is intended for use in the electromagnetic
environment specified below. The customer or the user of the device should assure that it is used in such
an environment.
Immunity test
IEC 60601 test level
Radiated RF
3 V/m
IEC 61000-4-3
80 MHz to 2.5 GHz
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 SONOTRAX Series Ultrasonic Pocket Doppler is used exceeds the
applicable RF compliance level above, the SONOTRAX Series Ultrasonic Pocket Doppler should be
observed to verify normal operation. If abnormal performance is observed, additional measures may
be necessary, such as reorienting or relocating the SONOTRAX Series Ultrasonic Pocket Doppler.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Compliance
Electromagnetic environment-guidance
level
Portable and mobile RF communications
equipment should be used no closer to any
part of the SONOTRAX Series Ultrasonic
Pocket Doppler, including cables, than the
recommended
calculated from the equation applicable to
the frequency of the transmitter.
Recommended separation distance
=
d
3 V/m
=
d
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 metres (m).
Field strengths from fixed RF transmitters,
as determined by an electromagnetic site
survey,
compliance level in each frequency
range.
Interference may occur in the vicinity of
equipment marked with the following
symbol:
- 26 -
separation
3
5 .
P
80 MHz to 800 MHz
E
1
7
P
800 MHz to 2.5 GHz
E
1
a
should
be
less
b
distance
than
the
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