MADSEN Alpha OAE+ Screener User Manual
58
Guidance and manufacturer's declaration - electromagnetic immunity - for equipment and systems that are NOT life-supporting
MADSEN Alpha OAE+ is intended for use in the electromagnetic environment specified below. The user of MADSEN Alpha OAE+ should ensure that it is used
in such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment - guidance
Conducted RF
IEC 61000-4-6
3 V rms
150 kHz to 80 MHz
3 V rms
150 kHz to 80 MHz
Portable and mobile RF communications equipment
should be used no closer to any part of MADSEN Alpha
OAE+, including cables, than the recommended
separation distance calculated from the equation
applicable to the frequency of the transmitter.
Recommended separation distance:
d = 1.2
d = 1.2
for 80 MHz to 800 MHz
d = 2.3
for 80 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 metres (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 this symbol:
Radiated RF
IEC 61000-4-3
3 V/m
80 MHz to 2.5 GHz
3 V/m
80 MHz to 2.5 GHz
Note 1
: At 80 MHz and 800 MHz the separation distance for 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 MADSEN Alpha OAE+ is used exceeds the applicable
RF compliance level above, the MADSEN Alpha OAE+ should be observed to verify normal operation. If abnormal performance is observed, additional
measures might be necessary, such as reorienting or relocating MADSEN Alpha OAE+.
b.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
