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Guidance and manufacturer’s declaration – Electromagnetic immunity
The system is intended for use in the electromagnetic environment specified below.
The customer or the user of the system should assure that it is used in such an environment.
Immunity test IEC 60601-1-2
test level
Compliance level Electromagnetic
environment guidance
Voltage Dips,
short
interruptions and
voltage variations
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 sec.
100 % reduction
0.5 period
40 % reduction
for 5 periods
30 % reduction
for 25 periods
100 % reduction
for 5 sec.
Mains power quality shall
be that of a typical
commercial or hospital
environment.
Conducted Radio
Frequency
IEC 61000-4-6
3 V RMS
0,15 MHz – 80 MHz
6 V RMS
in ISM bands
80 % AM at 1 kHz
3 V RMS
0,15 MHz – 80 MHz
6 V RMS
in ISM bands
80 % AM at 1 kHz
Portable and mobile
RF communications
equipment should be used
no closer to any part of the
system, including its
cables, than the
recommended separation
distance calculated from
the equation applicable to
the frequency of
the transmitter.
Recommended
separation distance
d = 1.17√P
d = 1.17√P 80 MHz
to 800 MHz
d = 2.33√P 800 MHz
to 2.7 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.
Radiated Radio
Frequency
IEC 61000-4-3
3 V/m 80 MHz to
2.7GHz
80 % AM at 1 kHz
3 V/m 80 –
2700MHz
80 % AM at 1 kHz
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