Haefely Technology AXOS5, User Manual

Page: 40 / 49

34 AXOS
5
Compact immunity test System
12 Service
12.1 Verification
In the next under captures are descriptions of our additional verification equipment for the AXOS
5
. If further information
required of any of the equipment, please either contact your sales representatives or the HAEFELY TEST AG technical
support team directly.
12.1.1 Waveform OCV (Surge)
The HAEFELY PDP8000 is a differential impulse measurement probe that can be used to measure surge pulses. Two
banana plug cables are provided as the High and Common inputs to the PDP8000, and a coaxial output is provided for
connection to an oscilloscope. The divider ratio is 1000:1 and the PDP8000 is rated up to 8kV for surge, 690VAC or
400VDC. The two banana plug will be directly connected to “direct” or “line” output in the front view.
Figure 12-1: PDP 8000
12.1.2 Waveform SCC (Surge)
The current transformer is necessary to verify the SCC waveform. It will be connected with pos.6 and pos.7. Then the
outgoing BNC output creates the connection to the oscilloscope. The SCC gets displayed on the oscilloscope and can
be compared with the parameter as shown in the operation menu from the AXOS
5
. It represents the signal in
accordance to the IEC 61000-4-4. The same test procedure gets applied for L, N, PE output at the front view.
Significant: Do not connect the “EUT Supply Input” with external power supply at the rear view, when using the current
transformer. It can be directly purchased through the HAEFELY TEST AG or contact your sales representative.
Figure 12-2: Current transformer