User's Manual

Acclarix AX8 Diagnostic Ultrasound System User Manual EMC Information
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Electromagnetic immunity
Electromagnetic immunity
The Acclarix AX8 is intended for use in the electromagnetic environment specified below. The
customer or the user of the Acclarix AX8 should assure that it is used in such an environment.
Immunity test
IEC
60601
test level
Compliance
level
Electromagnetic environment -guidance
Conducted
RF IEC
61000-4-6
Radiated RF
IEC
61000-4-3
3 Vrms
150 kHz
to 80
MHz
3 V/m
80 MHz
to 2.5
GHz
3Vrms
3 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the Acclarix AX8,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
Pd 1.2
150kHz ~ 80 MHz
Pd 1.2
80 MHz ~ 800 MHz
Pd 2.3
800 MHz ~ 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).
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 propagation 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 Acclarix AX8 is used exceeds the applicable RF compliance level
above, the Acclarix AX8 should be observed to verify normal operation. If abnormal performance is
observed, additional measures may be necessary, such as reorienting or relocating the Acclarix AX8
b
Over the frequency range 150 kHz to 80 MHz, field strengths should be less than 3 V/m.