Voltage dips, short inter-
ruptions and voltage vari-
ations on power supply input
lines
IEC 61000-4-11
<5 % U
T
(>95 % dip in U
T
)
for 0.5 cycle
40 % U
T
(60 % dip in U
T
) for
5 cycles
70 % U
T
(30 % dip in U
T
) for
25 cycles
<5 % U
T
(>95 % dip in U
T
)
for 5 s
<5 % U
T
(>95 % dip in U
T
)
for 0.5 cycle
40 % U
T
(60 % dip in U
T
) for
5 cycles
70 % U
T
(30 % dip in U
T
) for
25 cycles
<5 % U
T
(>95 % dip in U
T
)
for 5 s
Mains power quality should be that of a typical commercial or
hospital environment. If the user of the MADSEN Astera²
requires continued operation during power mains inter-
ruptions, it is recommended that the MADSEN Astera² be
powered from an uninterruptible power supply or a battery.
Power frequency
(50/60 Hz) magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency magnetic fields should be at levels char-
acteristic of a typical location in a typical commercial or hos-
pital environment.
U
T
is the AC mains voltage prior to application of the test level.
Guidance and manufacturer's declaration - electromagnetic immunity - for equipment and systems that are NOT life-supporting
MADSEN Astera² is intended for use in the electromagnetic environment specified below. The user of MADSEN Astera² 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 equip-
ment should be used no closer to any part of
MADSEN Astera², including cables, than the recom-
mended separation distance calculated from the
equation applicable to the frequency of the trans-
mitter.
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 trans-
mitter manufacturer and d is the recommended sep-
aration distance in metres (m).
Field strengths from fixed RF transmitters, as determ-
ined 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.
MADSEN Astera²
37
16 Technical specifications
