34
Voltage dips,
short interrup-
tions and volt-
age 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 sec
not applica-
ble
not applicable
(For INTERNAL-
LY POWERED ME
EQUIPMENT
Power frequency
(50Hz/60Hz)
magnetic field
IEC 61000-4-8
10V/m
10V/m
Power frequency mag-
netic fields should be
at levels characteristic
of a typical location in
a typical commercial
or hospital environ-
ment.
NOTE U
T
is the a.c. mains voltage prior to application of the test
level.
Guidance and manufacture’s declaration – electromagnetic im-
munity
The device is intended for use in the electromagnetic environment
specified below. The customer or the user of device should assure
that it is used in such an environment.
Immunity
test
IEC
60601
test
level
Compli-
ance level
Electromagnetic environment -
guidance