41
Guidance and manufacture’s declaration – electromagnetic immunity
This device is intended for use in the electromagnetic environment specified below.
The customer or user of this device should assure that it is used in such an environment.
Immunity test
IEC 60601
test level
Compliance level
Electromagnetic environment
- guidance
Electrostatic
discharge
(ESD
）
IEC 61000-4-2
±6kV contact
±8kV air
±6kV contact
±8kV air
Floors should be wood,
concrete of ceramic tile. If
floors are covered with
synthetic material, the
relative humidity should be
at least 30%.
Electrical fast
transient/ burst
IEC 61000-4-4
±2kV for power
supply lines
±1kV for input/
output lines
±2kV for power
supply lines
±1kV for input/
output lines
Mains power quality should
be that of a typical
commercial or hospital
environment.
Surge
IEC 61000-4-5
±1kV differential
mode
±2kV common mode
±1kV differential
mode
±2kV common mode
Mains power quality should
be that of a typical
commercial or hospital
environment.
Voltage dips,
short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
<5 %
U
T
(>95% dip in
U
T
)
for 0.5cycle
40 %
U
T
(60% dip in
U
T)
for 5 cycles
70 %
U
T
(30% dip in
U
T
)
for 25 cycles
<5 %
U
T
(>95% dip in
U
T)
for 5s
<5 %
U
T
(>95% dip in
U
T
)
for 0.5 cycle
40 %
U
T
(60% dip in
U
T
)
for 5 cycles
70 %
U
T
(30% dip in
U
T
)
for 25 cycles
<5 %
U
T
(>95% dip in
U
T
)
for 5s
Mains power quality should
be that of a typical
commercial or hospital
environment. If the user of
this device requires continued
operation during power
mains interruptions, it is
recommended that this device
be power from an
uninterruptible power supply
or a battery.
Power
frequency
(50/60Hz)
Magnetic field
IEC 61000-4-8
3A/m 0.3A/m If image distortion occurs, it
may be necessary to position
the device further from
sources of power frequency
magnetic fields or to install
magnetic shielding. The
power frequency magnetic
field should be measured in
the intended installation
location to assure that it is
sufficiently low.
NOTE
U
T
is the a.c. mains voltage prior to application of the test level.
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