Saadat Dena 350 User Manual page 71

Appendix IV – EMC
Recommended separation distances between
Portable and mobile RF communications equipment and the
The Dena350 Electrocardiograph is intended for use in the electromagnetic environment in
which radiated RF disturbances are controlled. The customer or the user of the Dena350 can help
prevent electromagnetic interference by maintaining a minimum distance between portable and
mobile RF communications equipment (transmitters) and the Dena350 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 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.
Electrocardiograph
Separation distance according to frequency of transmitter
150 kHz to 80 MHz
P
d = 1.17
0.12
0.37
1.17
3.70
11.7
m
80 MHz to 800 MHz
P
d = 1.17
0.12
0.37
1.17
3.70
11.7
65
800 MHz to 2.5 GHz
P
d = 2.33
0.23
0.74
2.33
7.37
23.3