Conducted RF
IEC 61000-4-6
Radiated RF
IEC 61000-4-3
3V(0.15MHz
–
80MHz),6V(in
ISM bands
between
0.15MHz and
80MHz)
10 V/m
80 MHz to
2.7GH
3V(0.15MHz
–
80MHz),6V(in
ISM bands
between
0.15MHz and
80MHz)
10 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the CMS50E,
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 2.7 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:
NOTE 1 At 80 MHz and 800 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 (cellular/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 should be considered. If the measured field strength in the
location in which the CMS50E is used exceeds the applicable RF compliance level above, the CMS50E
should be observed to verify normal operation. If abnormal performance is observed, additional
measures may be necessary, such as reorienting or relocating the CMS50E.
b Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM
–
for EQUIPMENT or SYSTEM that are not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the
CMS50E Pulse Oximeter.
The
CMS50E Pulse Oximeter
is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the
CMS50E Pulse Oximeter
can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the
CMS50E Pulse Oximeter
as recommended below,
according to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
(W)
Separation distance according to frequency of transmitter(m)
150 kHz to 80 MHz
P
V
d
=
1
5
.
3
80 MHz to 800 MHz
P
E
d
=
1
5
.
3
800 MHz to 2.7 GHz
P
E
d
=
1
7
0.01
0.058
0.035
0.07
0.1
0.18
0.11
0.22
1
0.58
0.35
0.7
10
1.83
1.10
2.21
100
5.8
3.5
7
For transmitters rated at a maximum output power not listed above, the recommended separation
distance d in metres (m) can be estimated using the equation applicable to the frequency of the
transmitter, where P is the maximum output power rating of the transmitter in watts (W) according to
the transmitter manufacturer.