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Immunity test
Voltage dips and
outages
IEC 61000-4-11
Power fre-
quency (50/60
Hz)
magnetic field
IEC 61000-4-8
Note : U
is the a.c. mains voltage prior to application of the test level.
T
Essential performance: The essential performance is the maintaining of the
visual lighting intensity of the LED and the maintaining of motor speed. Maximum
allowed speed deviation is ± 5%.
16
IEC 60601 test
level
<5% U
<5% U
T
(>95% dip in U
)
(>95% dip in U
T
for 0.5 cycle
for 0.5 cycle
40% U
40% U
T
(60% dip in U
)
(60% dip in U
T
for 5 cycles
for 5 cycles
70% U
70% U
T
(30% dip in U
)
(30% dip in U
T
for 25 cycles
for 25 cycles
<5% U
<5% U
T
(>95% dip in U
)
(>95% dip in U
T
for 5 sec
for 5 sec
3 A/m
3 A/m
Compliance level
T
)
T
T
)
T
T
)
T
T
)
T
Electromagnetic environment -
guidance
Mains power quality
should be that of a typi-
cal commercial or hospi-
tal environment. If the
user of TORNADO
requires continued ope-
ration during power
mains interruptions, it is
recommended that TOR-
NADO be powered from
an uninterruptible power
supply or a battery.
Power frequency magne-
tic fields should be at
levels characteristic of a
typical location in a typi-
cal commercial or hospi-
tal environment.
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