Cardioperfect workstation, Spiroperfect module – user manual – Welch Allyn CardioPerfect Workstation SpiroPerfect Module - User Manual User Manual
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CardioPerfect Workstation
SpiroPerfect Module
– User Manual
DIR 80012334 Ver. F
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Recommended separation distances between portable and mobile RF
communications equipment and the Welch Allyn SpiroPerfect
The Welch Allyn SpiroPerfect is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Welch Allyn SpiroPerfect can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF communications
equipment (transmitters) and the Welch Allyn SpiroPerfect 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
d
2
.
1
80 MHz to 800 MHz
P
d
2
.
1
800 MHz to 2,5 GHz
P
d
3
.
2
0,01
0.12
0.12
0.23
0,1
0.37
0.37
0.74
1
1.2
1.2
2.3
10
3.7
3.7
7.4
100
12
12
23
For transmitters rated at a maximum output power not listed above, the recommended separation distance d 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 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.