Acelity Prevena Incision Management System Application Instructions page 21

Recommended separation distances between portable and mobile RF
communications equipment and the Prevena™ 125 Therapy Unit
The Prevena™ 125 Therapy Unit is intended for use in an electromagnetic environment in which radiated
RF disturbances are controlled. The customer or the user of the Prevena™ 125 Therapy Unit can help
prevent electromagnetic interference by maintaining a minimum distance between portable and mobile
RF communications equipment (transmitters) and the Prevena™ 125 Therapy Unit as recommended
below, according to the maximum output power of the communications equipment.
Rated maximum
output power of
transmitter
W
0.01
0.1
1
10
100
For transmitters rated at a maximum output power not listed above, the recommended separate 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 surfaces, objects and people.
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
not applicable
not applicable
not applicable
not applicable
not applicable
not applicable
m
80 MHz to 800 MHz
3.5
d = [ ] P
E1
0.12
0.37
1.17
3.69
11.67
800 MHz to 2.5 GHz
7
d = [ ] P
E1
0.23
0.74
2.33
7.38
23.33
21