– 58 –
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
• <5%U
T
(>95 % dip in UT)
for 0,5 cycle
• 40% U
T
(60 % dip in UT)
for 5 cycles
• 70% U
T
(30 % dip in UT)
for 25 cycles
• <5%U
T
(>95 % dip in UT)
for 5 sec
• <5%U
T
(>95 % dip in UT)
for 0,5 cycle
• 40% U
T
(60 % dip in UT)
for 5 cycles
• 70% U
T
(30 % dip in UT)
for 25 cycles
• <5%U
T
(>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
“Digital Blood
Pressure Monitor
ORO-N3 COM-
PACT” requires
continued opera-
tion during power
mains inter-
ruptions, it is
recommended
that the “Digital
Blood Pressure
Monitor ORO-N3
COMPACT” be
powered from an
uninterruptible
power supply or
a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
3 A/m
3 A/m
Power frequency
magnetic fields
should be at levels
characteristic of a
typical location
in a typical com-
mercial
or hospital
environment.
UWAGA:
U
T
is the a.c. mains voltage prior to application of the test level.
