Standards and IEC Classifications
Technical Specifications
CUSA EXcel Ultrasonic Surgical Aspirator System Service Manual 5-11
Recommended separation distances between portable and mobile RF communication equipment and the CUSA EXcel
The CUSA EXcel is intended for use in an electromagnetic environment in which radiated RF disturbances are controlled. The
Customer or the user of the CUSA EXcel can help prevent electromagnetic interferences by maintaining a minimum distance
between portable and mobile RF communications equipment (transmitters) and the CUSA EXcel 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 80MHz 80MHz to 800MHz 800MHz to 2.5GHz
d=1.2ÐP d=0.5ÐP d=ÐP
0.01 .12 m 0.05 m 0.1 m
0.1 .38 m 0.16 m 0.32 m
1 1.2 m 0.5 m 1 m
10 3.8 m 1.6 m 3.2 m
100 12 m 5 m 10 m
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 a80MHz and 800MHz, 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.
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