Product Manual

Safety
7-14 Vscan – User Manual
GM092207 02
Guidance and manufacturer’s declaration – electromagnetic immunity
Immunity test
IEC 60601 test
level
Compliance
level
Electromagnetic
environment – guidance
c
Conducted RF
IEC 61000-4-6
Conducted RF
IEC 61000-4-3
3Vrms
150 kHz to 80 MHz
3V/m
80 MHz to 2.5 GHz
3Vrms [V1]
3 V/m [E1]
Portable and mobile RF
communications equipment should be
used no closer to any part of the
ultrasound unit, including cables, than
the recommended separation distance
calculated from the equation applicable
to the frequency of the transmitter.
Recommended separation distance
80 MHz to 800 MHz
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
metres (m).
b
Field strengths from fixed RF
transmitters, as determined by an
electromagnetic site survey,
a
should
be less than the compliance level in
each frequency range.
b
Interference may occur in the vicinity of
equipment marked with the following
symbol
NOTE 1: At 80 MHz and 800 MHz, the higher frequency range applies.
NOTE 2: These guidelines may not apply in all situations. Electromagnetic is affected by absorption and
reflection from structures, objects and people.
a
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
ultrasound unit is used exceeds the applicable RF compliance level above, the ultrasound unit should be
observed to verify normal operation. If abnormal performance is observed, additional measures may be
necessary, such as re-orienting or relocating the ultrasound unit.
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.
c
See examples of calculated separation distances in next table.