21
variations on
power supply
input lines
IEC
61000-4-11
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
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
continued
operation
during
power mains interruptions, it is
recommended that the LGT-235
be
powered
from
an
uninterruptible power supply or a
battery.
Power
frequency
(50Hz/60Hz)
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
commercial
or
hospital
environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test level.