CADENCE II Fetal Monitor User Manual
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A5.3
Electromagnetic Immunity – for EQUIPMENT and
SYSTEM that are not LIFE-SUPPORTING
Guidance and manufacture’s declaration – electromagnetic immunity
The
CADENCE II Fetal Monitor
is intended for use in the electromagnetic environment specified
below. The customer or the user of
CADENCE II Fetal Monitor
should assure that it is used in such
an environment.
Immunity test
IEC 60601 test level
Compliance
level
Electromagnetic environment -
guidance
Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3 V
rms
150 kHz to 80 MHz
3 V/m
80 MHz to 2.5 GHz
3V
rms
3 V/m
Portable and mobile RF communications
equipment should be used no closer to
any part of the
CADENCE II Fetal Monitor
including cables, than the recommended
separation distance calculated from the
equation applicable to the frequency of the
transmitter.
Recommended separation distance
P
V
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
5
.
3
P
E
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
5
.
3
80 MHz to 800 MHz
P
E
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
7
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: