CDNE M3 Introduction:
CDNE M3 is a coupling and decoupling network produced by Schwarzbeck, Germany and authorized by EUTTEST in Shenzhen, CDNEM3 is mainly used for the latest CISPR15 lamp test standard requirements of the conducted emission test, M3 model has three power cord interface so you can connect the three EUT's power cord test use.
Difference between CDNE and CDN:
Prior to the advent of CDNE, CDN coupling/decoupling networks were generally used for measuring conducted noise and immunity tests.The structure and usage of CDNE is mentioned in the latest standard of CISPR15 from 2018.Contrary to the coupling/decoupling network (CDN) described in IEC/EN 61000-4-6, CDNE can inject very little power and is particularly suitable for measurement of Conducted emission tests for luminaires with tighter impedance tolerances, so CDN can be used as a conducted immunity test, whereas CDNE cannot be used as a conducted immunity test.
Read more about Optional Models of CDN and CDNE Concepts Difference
Types of CDNE:
Depending on the number of power cords in the EUT DUT, you can use either of the following two CDNEs for testing.
CDNE M2 Coupled decoupling network (L,N)
CDNE M3 Coupling decoupling network (L,N,GND) (products on this page)
CDNE M3 meets the criteria:
The CDNE M3 from Schwarzbeck, Germany, complies with the conducted emission method of the latest EMC test standards for luminaires.
CISPR 15-2018 or newer standards
EN 55015-2018 or newer standards
The main technical parameters of the CDNE M3:
The parameters of the CDNE M3 and M2 are basically the same except for the frequency, so you only need to choose one model according to the number of cables to be tested.In addition, CDNE M3 cannot be used for two-wire EUT testing, so please contact us to purchase both CDNE M2 and CDNE M3 together if you need all the cables.
| Model number | CDNE M3 |
| manufacturer | SCHWARZBECK, Germany |
| Domestic agents | Shenzhen EUTTEST |
| Frequency range | 30MHz-300MHz |
| EUT line type | 3-wire |
| EUT and AE end connectors | 2*4mm Safety Banana Plug |
| RF test port | 50Ω BNC |
| Maximum voltage from EUT line to ground | 400V DC,277V 50/60Hz |
| Maximum current | 16A |
| Common mode impedance | 150 Ω +10 Ω/ -20 Ω |
| phase characteristic | 0° ±25° |
| Maximum EUT RF Voltage | 140dBμV |
| Maximum Test Port Voltage | 5V |
| EUT Test Port Voltage Divide Factor | 20 dB ±1.5 dB |
| Decoupling attenuation EUT->AE | >30dB |
| grounding | 4mm rubber tip and M4 screw fixing at AE end |
| size | 104 mm x 104 mm x 127 mm |
| EMC compliant | CISPR 15-2018 / EN 55015-2018 , GB17743 |
Optional calibration accessory for the CDNE M3:
The CDNE M3 requires a calibration kit to calibrate parameters such as voltage divider, decoupling, etc. There are several different connections for the calibration configuration and a number of ancillary accessories are required in addition to those listed below. euttest can provide a full range of calibration kits for sale together with an on-site training service, contact us for more information.
- CA CDNE M3 Part A
- CA CDNE Part B
- SR-100-6W
Calibration kit for CDNE M3
Technical data sheet of CDNE M3:
The following test charts are for use during testing.
Decoupling attenuation of CDNE M3
Voltage divider coefficient diagram for CDNE M3
Symmetrical impedance of CDNE-M2
