- 51 -
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines,
IEC 61000-4-11
<5% U
for ½ cycle
(>95% dip)
40% U
for 5 cycles
60% dip)
70% U
for 25 cycles
30% dip)
<95% U
for 5 s
(>5% dip)
<5% U
for ½ cycle
(>95% dip)
40% U
for 5 cycles
60% dip)
70% U
for 25 cycles
30% dip)
<95% U
for 5 s
(>5% dip)
Mains power quality should be
that of a typical commercial or
hospital environment.
If the user of the equipment
requires continued operation
during power mains
interruptions, it is
recommended that the
equipment 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
characteristic of a typical
location in a typical commercial
or hospital environment.
Note: U
is the a.c. mains voltage prior to application of the test level.
Guidance and manufacturer’s declaration — electromagnetic immunity
The equipment is intended for use in the electromagnetic environment specified below. The customer or the user
of the equipment should assure that it is used in such an environment.
Immunity test
IEC 60601- test
level
Compliance level
Electromagnetic environment
– guidance
Portable and mobile RF communications
equipment should be used no closer to any part
of the equipment, including cables, than the
recommended separation distance calculated
from the equation applicable to the frequency of
the transmitter.
Recommended separation distance:
Conducted RF,
IEC 61000-4-6
3 V
rms
150 kHz to 80 MHz
3 V
eff
d=1,2
P
Radiated RF,
IEC 61000-4-3
3 V/m
80 MHz to 2,5 GHz
3V/m
d=1,2
P
for 80 MHz to 800 MHz
d=2,3
P
for 800 MHz to 2,5 GHz
Where P is the maximum output power rating of
the transmitter in watts according to the
transmitter manufacturer and d is the
recommended separation distance in meters
(m).
Interference may occur in the vicinity of
equipment marked with the following symbol:
Recommended separation distances to portable and mobile RF communication equipment
The equipment is intended to be operated in an electromagnetic environment, where radiated RF interference is
controlled. The user can help in avoiding interferences by means of meeting minimum separation distances
between portable and mobile RF communication equipment (transmitters) according to the maximum output
power of the communication equipment.
Rated power of the
transmitter (W)
Separation distance according to the transmission frequency (m)
150 kHz to 80 MHz
d=1,2
P
80 MHz to 800 MHz
d=1,2
P
800 MHz to 2,5 GHz
d=2,3
P
0,01
0,12
0,12
0,23
0,1
0,38
0,38
0,73
1
1,2
1,2
2,3
10
3,8
3,8
7,3
100
12
12
23
Summary of Contents for SOMNOtouch RESP eco
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