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:
NOTE 1 At 80MHz and 800MHz, 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 CMS50D Pulse Oximeter is used exceeds the applicable RF compliance level above,
the CMS50D Pulse Oximeter should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the CMS50D Pulse
Oximeter.
b
Over the frequency range 150 KHz to 80 MHz, field strengths should be less than 3V/m.
Recommended separation distances between portable and mobile
RF communications equipment and the EQUIPMENT or SYSTEM
for EQUIPMENT or SYSTEM that not LIFE-SUPPORTING
Recommended separation distances between
portable and mobile RF communications equipment and the CMS50D Pulse Oximeter
The
CMS50D Pulse Oximeter
is intended for use in the electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the
CMS50D Pulse Oximeter
can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the
CMS50D 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)
150KHz to
80MHz
P
E
d
=
1
5
.
3
80MHz to 800MHz
P
E
d
=
1
5
.
3
800MHz to 2.5GHz
P
E
d
=
1
7
0.01
0.12
0.12
0.23
0.1
0.3
7
0.3
7
0.7
4
1
1.1
7
1.1
7
2.33
10
3.69
3.69
7.3
8
100
11.6
7
11.6
7
23.33
For transmitters rated at a maximum output power not listed above, the recommended separation
distanced in meters (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.
NOTE 1 At 80MHz and 800MHz, the separation distance for 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.