ETEKCITY B22 User Manual page 33

Guidance and manufacture's declaration – electromagnetic immunity
0 % U
at 0°,45°,90°, 135°, 180°, 225°,
Voltage dips, short
270°, 315°
interruptions and
voltage variations on
0 % U
power supply input
lines
70 % U
IEC 61000-4-11
0% U
t
Power frequency
(50/60 Hz) magnetic 30 A/m
field
50/60Hz
IEC 61000-4-8
Note: U is the a.c. mains voltage prior to application of the test level.
t
; 0.5 cycle
t
; 1 cycle
t
Not applicable
; 25/30 cycle
t
; 250/300 cycle
30 A/m
50/60Hz
Mains power quality should be that of a
typical commercial or hospital environment.
If the user of the device requires continued
operation during power mains interruptions, it
is recommended that the device be powered
from an uninterruptible power supply or a
battery.
Power frequency magnetic fields should be at
levels characteristic of a typical location in a
typical commercial or hospital environment.
EN
33