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9 • Notes on electromagnetic compatibility (EMC)
80110-801_V23493
2022-03
Voltage dips, short-
term interruptions and
voltage fluctuations on
power supply input
lines as per
IEC 61000-4-11
0% U
T
for 0.5 cycle,
at 0, 45, 90, 135, 180, 225,
270 and 315 degrees
0% U
T
for 1 cycle,
single-phase at 0 degrees
70% U
T
for 25/30 cycles,
single-phase at 0 degrees
0% U
T
for 0.5 cycle,
at 0, 45, 90, 135, 180, 225,
270 and 315 degrees
0% U
T
for 1 cycle,
single-phase at 0 degrees
70% U
T
for 25/30 cycles,
single-phase at 0 degrees
Mains power quality should be
that of a typical commercial or
hospital environment.
If the user of the unit requires
continued operation during
power mains interruptions, it is
recommended that the unit be
powered from an uninterrupt
-
ible power supply or a battery.
Voltage monitoring as
per IEC 61000-4-11
0% U
T
for 250/300 cycles
(50/60
Hz)
0% U
T
for 250/300 cycles
(50/60
Hz)
Power frequency (50/
60 Hz) magnetic field
as per IEC 61000-4-8
30 A/m 30 A/m Power frequency magnetic
fields should be at levels char
-
acteristic of a typical location in
a typical commercial or hospital
environment.
Note: U
T
is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer's declaration - electromagnetic immunity
The unit is intended for use in the electromagnetic environment specified below. The user of the unit should ensure that it is
used in such an environment.
Immunity test IEC 60601-1-2 test
level
Compliance level Electromagnetic environment - guidance
Conducted HF distur-
bances as per
IEC 61000-4-6
3 V
eff
150 kHz to 80 MHz
3 V
eff
150 kHz to 80 MHz
The field strengths of fixed transmitters, as deter-
mined by an electromagnetic site survey should be
below the compliance level in each frequency
range.
b)
Interference may occur in the vicinity of units
marked with the following symbol.
6 V
eff
a)
in ISM fre-
quency bands
150
kHz to 80 MHz
6 V
eff
a)
in ISM fre-
quency bands
150
kHz to 80 MHz
Radiated high-fre-
quency electromag-
netic fields as per
IEC 61000-4-3
3 V/m
80 MHz to 2.7 GHz
3 V/m
80 MHz to 2.7 GHz
Note: These guidelines may not apply in all cases. Electromagnetic propagation is affected by absorption and reflection from
structures, objects and people.
a)
The ISM bands between 150 kHz and 80 MHz are 6.765 MHz to 6.795 MHz, 13.553 MHz to 13.567 MHz, 26.957 MHz to
27.283
MHz and 40.66 MHz to 40.7 MHz.
b)
The field strengths of fixed transmitters, such as base stations for radio (cellular/cordless) telephones and terrestrial radio
units, amateur radio stations, AM and FM radio and TV channels cannot be predicted theoretically with accuracy. To assess
the electromagnetic environment with regard to fixed transmitters, a site inspection should be considered. If the field
strength measured at the site where the unit is used exceeds the abovementioned compliance level, the unit must be moni
-
tored to ensure it is functioning properly. In the event of any unusual operating behavior, additional measures may be
required, such as changing the orientation or location of the unit.
Guidance and manufacturer's declaration - electromagnetic immunity
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