Neuro-Audio (Technical Manual)
48
Guidance and manufacturer’s declaration – electromagnetic immunity
The digital system is intended for use in the electromagnetic environment specified below. The customer
or the user of the digital system should assure that it is used in such an environment.
Immunity test
IEC 60601 test
level
Compliance level
Electromagnetic
environment - guidance
Electrostatic discharge
(ESD)
IEC 61000-4-2:2008
±8 kV
−
contact
±8 kV
Floors should be wood,
concrete or ceramic tile. If
floors are covered with
synthetic material, the relative
humidity should be at least
30%.
±15 kV
−
air
±2 kV; ±4 kV;
±8 kV; ±15 kV
Electrical fast
transient/burst
IEC 61000-4-4:2012
±2 kV
−
for power
supply lines
±2kV
1)
Mains power quality should
be that of typical commercial
or hospital environment.
±1 kV
−
for
input/output lines
Not applicable
Surge
IEC 61000-4-5:2004
±1 kV differential
mode
±0.5kV; ±1 kV
2)
Mains power quality should
be that of typical commercial
or hospital environment.
±2 kV common
mode
±0.5kV; ±1 kV;
±2kV
2)
Voltage dips
IEC 61000-4-11:2004
0% U
T
during 0.5 period
at 0º, 45º, 90º, 135º,
180º, 225º, 270º,
315º
10 ms
3)
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of the
digital system requires
continued operation during
power mains interruptions, it
is recommended that the
digital system be powered
from an uninterruptible power
supply or a battery.
0% UT
during 1 period
20 ms
3)
70% UT during 25
periods.
Monophase: at 0º
500 ms
3)
Voltage interruptions
IEC 61000-4-11:2004
0% U
T
during 250 period
5000 ms
3)
Power frequency
magnetic field
IEC 61000-4-8:2009
30 A/m
at 50 or 60 Hz
30 A/m
Power frequency magnetic
fields should be that of a
typical commercial or hospital
environment.
1)
Ensured by PC compliance with IEC 61000-4-4 requirements.
2)
Ensured by PC compliance with IEC 61000-4-5 requirements.
3)
Ensured by PC compliance with IEC 61000-4-11 requirements.
Note: UT – is the a.c. mains voltage prior to application of the test level