Guidance and manufacturer’s declaration – electromagnetic immunity
The bed is intended for use in the electromagnetic environment specified below. The customer or the
user of the bed 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 or
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
± 2kV
Power supply quality should be that of a
typical commercial or hospital
environment.
± 1kV for
input/output
lines
Not applicable
Surge
IEC 61000-4-5
± 1kV line to line ± 1kV
Power supply quality should be that of a
typical commercial or hospital
environment.
± 2kV line to
earth
± 2kV
Voltage dips,
short interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-11
70%
U
T
(30% dip in
U
T
)
for 25 cycles
40%
U
T
(60% dip in
U
T
)
for 5 cycles
<5%
U
T
(>95% dip in
U
T
) for 0.5 cycle
<5%
U
T
(>95% dip in
U
T
)
for 5 sec
70% of input
voltage for 500ms
40% of input
voltage for 100ms
<5% of input
voltage for 10ms
<5% of input
voltage for
5000ms
Power supply quality should be that of a
typical commercial or hospital
environment.
If the user of the bed requires continued
operation during power interruptions, it
is recommended that the bed be
powered from an uninterruptible power
supply or battery.
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.
NOTE
U
T
is the a.c. power voltage prior to the application of the test level
746-574-AM-1
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