IMMUNITY
test
IEC 60601
test level
Compliance
level
Electromagnetic
environment – guidance
Voltage dips, short
interruptions and
voltage variations
on power supply
input lines
IEC 61000-4-11
<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 seconds
<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 seconds
Mains power quality should be that
of a typical domestic, commercial
or hospital environment. If the user
of the System requires continued
operation during power mains
interruptions, it is recommended
that the System be powered from
an uninterruptible power supply or
a battery.
Power frequency
(50/60 Hz)
magnetic field
IEC 61000-4-8
30 A/m
30 A/m
Power frequency magnetic fields
should be at levels characteristic of a
typical location in a typical domestic,
commercial or hospital environment.
NOTE
U
T
is the a.c. mains voltage prior to application of the test level.
85