41
Portable and mobile RF communications equipment should be used no closer
to any part of the device, including cables, than the recommended separation
distance calculated from the equation applicable to the frequency of the
transmitter.
Recommended separation distance:
d=1.2√
P
150 kHz to 80 MHz
d=1.2√
P
80 MHz to 800 MHz
d=2.3√
P
800 MHz to 2.5 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:
3 Vrms
150 kHz
to 80 MHz
3V/m
80 MHz
to 2.5 GHz
3 Vrms
3V/m
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
Compliance
Level
IEC 60601
Test Level
Immunity Test
Electromagnetic
Environment - Guidance
Guidance and Manufacturer’s Declaration - Electromagnetic Immunity:
The Concentrator is intended for use in the electromagnetic environment specified below. The user of the Concentrator
should make sure it is used in such an environment.
Floors should be wood, concrete or ceramic tile. If floors are covered with
synthetic material, the relative humidity should be at least 30 %.
Mains power quality should be that of a typical commercial or hospital
environment.
Mains power quality should be that of a typical commercial or hospital
environment.
Electrostatic
discharge (ESD)
IEC 61000-4-2
Electrical fast
transient/burst
EC 61000-4-4
Surge
IEC 61000-4-5
± 6 kV contact
± 8 kV air
± 6 kV contact
± 8 kV air
± 2 kV for power
supply lines
± 1 kV for input/
output lines
± 2 kV for power
supply lines
± 1 kV for input/
output lines
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
± 1 kV line(s) to
line(s)
± 2 kV line(s) to
earth
Mains power quality should be that of a typical commercial or hospital
environment. If the user of the [ME EQUIPMENT or ME SYSTEM] requires
continued operation during power mains interruptions, it is recommended
that the [ME EQUIPMENT or ME SYSTEM] be powered from
an uninterrupted power supply or a battery.
Power frequency magnetic fields should be at levels characteristic of a typical
location in a typical hospital or home environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
Power frequency
(50/60 Hz)
magnetic
field
IEC 61000-4-8
<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
<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
3 A/m
3 A/m
English
