18
s and
voltage
variations
on power
supply
input lines
IEC
61000-4-11
°,225°,270°
and 315°)
0% U
T
; 1
cycle and
70% U
T
;
25/30 cycles
Single
phase: at 0°
0% U
T
;
250/300
cycles
°,225°,270°
and 315°)
0% U
T
; 1
cycle and
70% U
T
;
25/30 cycles
Single
phase: at 0°
0% U
T
;
250/300
cycles
hospital environment. If
the user of the DQAPT
requires
continued
operation during power
mains interruptions, it is
recommended that the
DQAPT
be
powered
from an uninterruptible
power
supply
or
a
battery.
Power
frequency
(50/60Hz)
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
commercial or hospital
environment.
NOTE U
T
is the a.c. mains voltage prior to application of the test
level.
