Mettler Electronics Corp.— Rev.J_09/13/17
18
Recommended separation distances between
portable and mobile RF communications equipment and the
Sonicator Plus 930
The Sonicator Plus 930 is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the Sonicator Plus 930 can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the Sonicator Plus 930 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
d = 1,2√P
80 MHz to 800 MHz
d = 1,2√P
800 MHz to 2,5 GHz
d = 2,3√P
0,01 0,12 0,12 0,23
0,1 0,38 0,38 0,73
1 1,2 1,2 2,3
10 3,8 3,8 7,3
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.
Guidance and manufacturer’s declaration
No. Mode of Operation Essential Performance
Degradation Allowed
1
Unit tested to 230
VAC for CE
Unit tested to 120
VAC for US/Canada
Unit designed to be failure safe in
abnormal condition
2 Unit has two
stimulation channels
with ultrasound
Reset allowed as long as failure safe
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