DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual EMC Information
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Electrical fast
transient/burst IEC
61000-4-4
±2 kV for power supply
lines
±2KV for power supply
lines
Mains power quality
should be that of a typical
commercial or hospital
environment.
Surge IEC
61000-4-5
±1 kV line to line
±2 kV line to ground
±1 kV line to line
±2 kV line to ground
Mains power quality
should be that of a typical
commercial or hospital
environment.
Power frequency
(50/60Hz) magnetic
field IEC 61000-4-8
3A/m 3A/m Power frequency magnetic
fields should be at levels
characteristic of a typical
location in a typical
commercial or hospital
environment.
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines IEC
61000-4-11
<5% UT
(>95% dip in UT)
for 0.5 cycle
40% UT (60% dip in UT)
for 5 cycles
70% UT (30% dip in UT)
for 25 cycles
<5% UT (>95% dip in
UT) for 5 sec
<5% UT
(>95% dip in UT) for
0.5 cycle
40% UT (60% dip in UT)
for 5 cycles
70% UT (30% dip in UT)
for 25 cycles
<5% UT (>95% dip in
UT) for 5 sec
Mains power quality
should be that of a typical
commercial or hospital
environment. If the user of
the
DUS 60 requires
continued operation during
power mains interruptions,
it is recommended that the
DUS 60 be powered from
an uninterruptible power
supply or a battery.
NOTE UT is the a.c. mains voltage prior to application of the test level.
DUS 60 Digital Ultrasonic Diagnostic Imaging System User Manual EMC Information
- 211 -
Guidance and manufacture’s declaration – electromagnetic immunity –
for EQUIPMENT and SYSTEMS that are not LIFE-SUPPORTING
Guidance and manufacture’s declaration – electromagnetic immunity
The DUS 60 is intended for use in the electromagnetic environment specified below. The customer or the user of the
DUS 60 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
1Vrms
1 V/m
Portable and mobile RF communications equipment
should be used no closer to any part of the
DUS 60,
including cables, than the recommended separation
distance calculated from the equation applicable to the
frequency of the transmitter.
Recommended separation distance
P
V
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
5.3
P
E
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
5.3
80 MHz to 800 MHz
P
E
d
⎥
⎦
⎤
⎢
⎣
⎡
=
1
7
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).
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 DUS 60 is used exceeds the applicable
RF compliance level above, the DUS 60 should be observed to verify normal operation. If abnormal performance is
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