Medela Freestyle Gebrauchsanweisung Seite 174

13. EMC / Technical description
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
Power frequency
(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
174
174
<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 5 s
3 A/m
Mains power quality
should be that of a
<5 % U
T typical commercial or
(>95 % dip in U
)
T hospital environment.
for 0,5 cycle
If the user of the electric
40 % U
T breastpump Freestyle
(60 % dip in U
)
T requires continued op-
for 5 cycles
eration during power
70 % U
mains interruptions, it is
T
(30 % dip in U
)
recommended
T
for 25 cycles
that the electric breast-
<5 % U
T pump Freestyle is pow-
(>95 % dip in U
)
T ered from an uninterrupt-
for 5 s
ible power supply or a
battery.
Power frequency mag-
netic fields should be at
levels characteristic of a
30 A/m
typical location in a typi-
cal commercial or hospi-
tal environment.