Ametek OCS 500 M6, Руководство по эксплуатации, Страница: 39 / 80

AMETEK CTS OCS 500 N6 series
Manual for Operation V 5.24 39 / 80
6.2.3. Ri setting for slow damped oscillatory wave 100
Ω or 200 Ω
This chapter is valid for OCS 500Nx with firmware versions V 3.30axx and higher.
AMETEK CTS coupling decoupling networks All other CDN not from AMETEK CTS
Ri = 100 Ω Coupling setting to:
“
ExtCN
”
Ri = 200 Ω Coupling setting to:
“\”
All earlier firmware versions V3.24axx and earlier, have only one external coupling (\) with 100 Ohm setting.
CNV 504N5.x Series
- IEC 61000-4-5
- IEC 61000-4-12
- IEC 61000-4-18
- ANSI IEEE C62.41.2
For coupling of damped waves to signal- and data lines a special coupling
network as per IEC 61000-4-12 / -18 is available. It works with smaller
coupling capacitors (CNV 504N5.1 for four lines).
For many applications special coupling networks are necessary for such
kind of test.
The internal impedance in the OCS 500 N6/N6F will change by setting to
external coupling network (ExtCN) to 100

. The coupling network CNV
504N5.x includes an additional impedance of 100

, for be compliance
to the recommended 200

for Rd.
The coupling to the data lines happens with short circuit lines. The
middle plug line is connected direct to the EUT output. With individual
setting the short circuit connector each combination can be realized.
Example
testing L1 _ L3: HV Coupling to L1
COM to L3
Coupling COM - GND
If the COM line must be connected to GND (protected earth) the short
circuit connector must be mounted in the position between CON and
GND. Between COM and GND plug an internal inductance of 120 µH is
connected.