Voltage dips,
< 5 % U
short interrup-
(>95% dip in U)
tions and voltage
for 0,5 cycle
variations on
40% U
power supply
(60% dip in U)
input lines
for 5 cycles
IEC 61000-4-11
70% U
(30% dip in U )
for 25 cycles
< 5 % U
(>95% dip in U)
for 5 sec
Power frequency
3 A/m
(50/60 Hz)
magnetic field
IEC 61000-4-8
Note: U is the A/C main's voltage prior to application of the test level.
Rated Maximum
Output Power of
Transmitter watts
0.01
0.1
1
10
100
< 5 % U
Main power quality should be that of a typical commercial and/or
(>95% dip in U)
hospital environment. If the user of the VPULSE requires continued
for 0,5 cycle
operation during power main interruptions, it is recommended that the
VPULSE be powered from an uninterruptible power supply or a battery.
40% U
(60% dip in U)
for 5 cycles
70% U
(30% dip in U)
for 25 cycles
< 5 % U
(>95% dip in U)
for 5 sec
If improper operation occurs, it may be necessary to position the
3 A/m
VPULSE further from sources of power frequency magnetic fields or to
install magnetic shielding. The power frequency magnetic field should
be measured in the intended installation location to ensure that it is
sufficiently low.
150 kHz to 80 MHz
d=1,2√P
0,12
0,38
0,12
3,8
12
Separation distance metres
150 kHz to 800 MHz
d=1,2√P
0,12
0,38
0,12
3,8
12
800 MHz to 2,5 GHz
d=2,3√P
0,23
0,73
2,3
7,3
23
21 of 22