FujiFilm VisualSonics Vevo MD User Manual page 374

Immunity IEC 60601 test
test
IEC 61000- 80 MHz to 2.4
4-3
1
Field strengths from fixed transmitters such as base stations for radio (cellular/cordless) telephones 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
Vevo MD Imaging System is used exceeds the applicable RF compliance level above, the Vevo MD
Imaging System should be observed to verify normal operation. If abnormal performance is observed,
additional measures may be necessary, such as re-orienting or relocating the Vevo MD Imaging System.
2
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
374 Appendices
Compliance level
level
GHz
Electromagnetic
Environment
80 MHz to 800 MHz
d=2.3√P
800 MHz to 2.5 GHz
Where √P is the
maximum output power
rating of the transmitter
in watts (W) according
to the transmitter
manufacturer and d is
the recommended
separation distance in
meters (m).
Field strengths from
fixed RF transmitters,
as determined by an
electromagnetic Site
1
survey , should be less
than the compliance
level in each frequency
2
range .
Interference may occur
in the vicinity of
equipment marked with