42
environment.
Voltage dips, short
interruptions and
voltage variations on
power supply input
lines
IEC / EN 61000-4-11
< 5% U
T
(> 95% dip in U
T
for
0.5 cycle)
40% UT
(60% dip in UT for 5
cycles)
70% UT
(30% dip in UT for
25 cycles)
< 5% UT
(> 95% dip in UT
for 5 s)
< 5% UT
(> 95% dip in UT
for
0.5 cycle)
40% UT
(60% dip in UT for 5
cycles)
70% UT
(30% dip in UT for
25 cycles)
< 5% UT
(> 95% dip in UT
for 5 s)
AC power (“mains”) power
quality should be that of a
typical commercial or hospital
environment. If the user of the
ventilator requires continued
operation during power mains
interruptions, it is
recommended that the
ventilator be powered from an
uninterruptible power supply
or a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC/ EN 61000-4-8
3 A/m
3 A/m
Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
Note:
UT is the AC mains voltage prior to application of the test level.
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity:
This device is intended for use in
the electromagnetic environment specified below. The user of this device should make sure it is used in such
an environment.
Immunity Test
IEC / EN 60601-1-2
Test Level
Compliance
Level
Electromagnetic Environment–
Guidance
Conducted RF
IEC / EN 61000-4-6
Radiated RF
IEC / EN 61000-4-3
3 Vrms
150 kHz to 80 MHz
outside ISM bands
a
10 Vrms
inside ISM bands
a
10 V/m 80 MHz to
2.5 GHz
3 Vrms
150 kHz to 80
MHz
outside
ISM
bands
10 Vrms
inside ISM bands
10 V/m 80 MHz
to
2.5 GHz
Portable and mobile RF
communications device should
be used no closer to any part of the
ventilator, including cables, than
the
recommended separation distance
calculated from the equation
applicable to the frequency of the
transmitter.
Recommended separation
distance
