Integra CUSA Clarity Operator's Manual page 137

Voluntary Standards
Field strengths from fixed transmitters, such as base stations for radio (cellular/cordless) telephones
a
and land mobile radios, amateur radio, AM and FM radio broadcast and TV broadcast cannot be
predicted theoretically with accuracy. To assess the electromagnetic environment due to fixed RF
transmitters, an electromagnetic site survey should be considered. If the measured field strength in the
location in which the CUSA Clarity system is used exceeds the applicable RF compliance level above,
the CUSA Clarity system should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as re-orientating or relocating the CUSA Clarity
system.
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
b
Portable and Mobile RF Communications Equipment and the CUSA Clarity System
The CUSA Clarity system is intended for use in an electromagnetic environment in which radiated RF
disturbances are controlled. The customer or the user of the CUSA Clarity system can help prevent
electromagnetic interference by maintaining a minimum distance between portable and mobile RF
communications equipment (transmitters) and the CUSA Clarity system 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 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: At 80 MHz and 800 MHz, the separation distance for the higher frequency range applies.
NOTE: These guidelines may not apply in all situations. Electromagnetic propagation is affected by
absorption and reflection from structures, objects, and people.
A-10
Recommended Separation Distances between
Separation Distance According to Frequency of Transmitter m
150 kHz to 80 MHz
d =1,2P
0.12 m
0.38 m
1.2 m
3.8 m
12 m
CUSA
80 MHz to 800 MHz
d =1,2P
0.12 m
0.38 m
1.2 m
3.8 m
12 m
Clarity Ultrasonic Surgical Aspirator System Operator's Manual
®
800 MHz to 2.7 GHz
d =2,4P
0.24 m
0.76 m
2.4 m
7.6 m
24 m