Vitalograph In2itive User Manual
Cat. No. 07514
Issue 5
Page 42 of 45 DT_0006-6
Recommended separation distances between portable and mobile
RF communication equipment and the Model 2120
The Model 2120 is intended for use in an electromagnetic environment
in which radiated RF disturbances are controlled. The customer or the
user of the Model 2120 can help prevent electromagnetic interference
by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Model 2120 as
recommended below, according to the maximum output power of the
communications equipment.
Separation distance according to frequency of
transmitter
m
Rated maximum
output power of
transmitter
W
150 kHz to 80
MHz
d = 1.2
√
P
80 MHz to 800
MHz
d = 1.2
√
P
800
MHz
to
2.5GHz
d = 2.3
√
P
0.01
0.1m
0.1m
0.2m
0.1
0.4m
0.4m
0.7m
1
1.2m
1.2m
2.3m
10
3.7m
3.7m
7.4m
100
11.7m
11.7m
23.3m
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.
Medical Devices may be affected by cellular telephones and other
personal or household devices not intended for medical facilities. It is
recommended that all equipment used near the Vitalograph product
comply with the medical electromagnetic compatibility standard and to
check before use that no interference is evident or possible. If
