Overview
The Teseq CDN3425 (Teseq CCL) main purpose is to couple Burst/EFT pulses to data lines. It can also be used to couple to mains lines where no CDN is available; for example, high current lines >200 A. A2LA accredited calibration is included in the EMC rental equipment price.
The new design is fully compliant with the specifications of IEC 61000-4-4 Ed 2.0 2004, as well as with the draft of IEC 61000-4-4 Ed 3.0 to be published in 2012.This model also replaces earlier models CDN 8014 and CDN 8015.The coupling capacitance between the coupling clamp and the cable laid in it depends on the cable characteristics.
Preparation for operation
The test rig is to be constructed in accordance with IEC/EN 61000-4-4 with special reference to:
- Operation preferably in a screened room to protect the environment
- Distances to the EUT and peripherals to be as specifi ed in the standard
- Good and large area contact to the earth plane
Tests on uninsulated cables is not permissible.
Figure 1: Example of test setup as described in IEC/EN 61000-4-4.
Consult IEC 61000-4-4 or relevant product Standard for details about test setup.
Operating
Connect the delivered HV pulse cable to the pulse output of the used EFT/ burst generator.
Figure 2: CDN 3425 connected to the EFT output of a NSG 3040 generator
If INA 3825 accessory is used, connect the Interlock cable to the interlock input of your generator, use the INA 3825 to cover the CDN 3425 the way the interlock switch (rear side – middle) gets activated.
