Contec MDD93EEC Instructions To User page 16

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Recommended Recommended Recommended Recommended separation
RF communications
RF communications RF RF communications equipment communications
for for EQUIPMENT or or or or SYSTEM EQUIPMENT EQUIPMENT
for for EQUIPMENT
portable portable and and mobile mobile
portable portable and and mobile mobile RF
The CMS50QB Pulse Oximeter
are controlled. The customer or the user of the CMS50QB
by maintaining a minimum distance between portable and mobile RF communications equipment (transmitters) and the
CMS50QB Pulse Oximeter
as recommended below, according to the maximum output power of the communications
equipment.
Rated maximum Rated Rated Rated maximum maximum maximum output output output output
power power of of of of transmitter transmitter
power power transmitter transmitter 150 150
150 150 kHz
(W) (W)
(W) (W)
0.01
0.1
1
10
100
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.
NOTE 1 At 80 MHz and 800 MHz, 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.
separation separation separation distances distances distances distances between between between between portable
equipment and the
equipment equipment and and and the the EQUIPMENT the
SYSTEM SYSTEM that that are are
SYSTEM that that are are not
Recommended Recommended separation separation distances distances
Recommended Recommended separation separation distances distances between
RF RF communications communications equipment equipment
RF communications communications equipment equipment and
is intended for use in an electromagnetic environment in which radiated RF disturbances
Pulse Oximeter
Separation Separation Separation Separation distance distance distance distance according according to to to to frequency according according
kHz kHz kHz to to to to 80 80 80 80 MHz MHz MHz 80 80 80 80 MHz MHz MHz MHz to to to to 800
MHz
⎡ ⎤
3 5 .
d = P d
⎢ ⎥
V
⎣ ⎦
1
0.12
0.37
1.17
3.69
11.67
13
portable portable portable and and and mobile and mobile mobile mobile
EQUIPMENT or or or or SYSTEM EQUIPMENT SYSTEM – – – – SYSTEM
EQUIPMENT SYSTEM
not not LIFE-SUPPORTING LIFE-SUPPORTING
not LIFE-SUPPORTING LIFE-SUPPORTING
between between
between
and and the the CMS50QB the CMS50QB CMS50QB CMS50QB PULSE PULSE PULSE OXIMETER PULSE OXIMETER OXIMETER OXIMETER
and the
can help prevent electromagnetic interference
frequency of of of of transmitter frequency frequency transmitter transmitter transmitter
(m) (m) (m) (m)
800 800 MHz MHz 800 800 MHz MHz to to to to 2.5 MHz
800 MHz MHz 800 800 MHz
⎡ ⎤
3 5 .
= P d
⎢ ⎥
E
⎣ ⎦
1
0.12
0.37
1.17
3.69
11.67
2.5 2.5 GHz GHz
2.5 GHz GHz
⎡ ⎤
7
= P
⎢ ⎥
E
⎣ ⎦
1
0.23
0.74
2.33
7.38
23.33