33
Voltage
dips, short
interruptions
and voltage
variations on
power supply
input lines
IEC 61000-4-
11
<5 % Ur
(>95% dip in U
T
for O5 cycle
40% Ur
(60% dip in U
T
for 5 cycles
70% Ur
(30% dip in U
T
for 25 cycles
<5% Ur
(>95 % dip in
UT ) for 5 sec
<5% UT
(>95% dip in
U
T
.
）
for O5 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 sec
Mains power quality should be that
of a typical commerc1al or hospital
environment If the user of the
model require continued operation
during power mains mterru,pt ons,
,t 1s recommended that the model
be powered from an uninterruptible
power supply or a battery.
Power
frequency
(50/60 Hz)
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 ac. ma,ns voltage prior to application of the test level.
