Ambu aView - Page 16

Guidance and manufacturer’s declaration – electromagnetic immunity
The system is intended for use in the electromagnetic environment specified below.
The customer or the user of the system shoul d assure that it is used in such an environment.
Immunity test IEC 60601
test level
Compliance
level
Electromagnetic
Environment Guidance
Conducted
Radio
Frequency
IEC 61000-4-6
3 V RMS
0,15 MHz –
80 MHz
6 V RMS
in ISM bands
80% AM at
1 kHz
3 V RMS
0,15 MHz –
80 MHz
6 V RMS
in ISM bands
80% AM at
1 kHz
Portable and mobile RF
communications equipment
should be used no closer to any
part of the system, including its
cables, than the recommended
separation distance calculated
from the equation applicable to
the frequency of the transmitter.
Recommended separation
distance
d = 1.17√P
d = 1.17√P 80 MHz to 800 MHz
d = 2.33√P 800 MHz to 2.7 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 metres (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.
Radiated Radio
Frequency
IEC 61000-4-3
3 V/m 80 MHz
to 2.7 GHz
80% AM at
1 kHz
3 V/m
80 – 2700 MHz
80% AM at
1 kHz
NOTE 1: At 80 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic propagation is
affected by absorption and reflection from structures, objects and people.
a) Field strengths from fixed transmitters, such as base stations for radio (celluar/cordless)
telephones and land mobile radios, amateur radio, AM and FM radio broadcast, and TV
broadcast, cannot be predicted theoretically with accuracy. To assess the electromagnetic
environment due to fixed RF transmitters, an electromagnetic site survey shall be considered.
If the measured field strength in the location in which the system is used exceeds the
applicable RF compliance level above, the system shall be observed to verify normal operation.
If abnormal performance is observed, additional measures may be necessary, such as
reorienting or relocating the system.
b) Over the frequency range 150kHz to 80MHz, field strengths shall be less than 3 V/m.
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