EMC-Test

EMC Test

All electric products must be EMC tested for electromagnetic compatibility. We have our own EMC test laboratory, where we can EMC test the products, we develop. EMC testing ensures that the product can function properly without disturbing other electrical products or itself. It is thus ensured that no disturbing electromagnetic interference occurs. In addition, the product must not be disturbed by any electromagnetic interference of other electrical products.

EMC Testing Is an Integral Part of Developing a New Product

When we develop products, it is always clearly stated in the specifications which EN standards we conduct EMC compliance testing according to. These tests are performed on the electronic devices we have developed for your product. Naturally our own standard products must also pass the EMC testing before released to the marked.

Test at Several Levels

You can choose to have only the electronics we have developed tested. But we also offer to perform pre-testing of your complete, finished product, in which the developed electronics are included as part of a complete whole.

This means that the product passes safely through tests at certified test providers both in DK and in other countries, e.g. TÜV in Germany.

In our experience, such a pre-test is a really good idea, as there is typically a long waiting time for the certified providers, and it is very expensive if the product must go through several tests with the certified providers.

Over the years, we have invested in a wide range of special test equipment that allows for high-level testing.

Which Tests Do We Perform

An EMC test will typically consist of a combination of the elements below.

• HF – Field Emission (EMI).
• Grid-borne HF noise
• Harmonic power lines on the grid
• ESD Air Discharge
• Grid failure and voltage drop
• Transients on AC input / output power ports

How Do We Conduct the Tests

• Preparation: The device under test (DUT) is prepared and set up according to its normal operating conditions. This includes connecting all cables and peripherals as they would be used in real life.
• Emission Testing: This step measures the electromagnetic emissions from the device. Specialized equipment like spectrum analyzers and antennas are used to detect and measure any unwanted emissions. This helps ensure the device doesn’t interfere with other electronic equipment.
• Immunity Testing: Here, the device is subjected to various electromagnetic disturbances to see how well it can withstand them without malfunctioning. This includes tests like electrostatic discharge (ESD), radiated RF (radio frequency) immunity, and conducted immunity.
• RF Emission Testing: The device is placed in an anechoic chamber, which is a specially designed room that absorbs reflections of electromagnetic waves. This isolates the device from external signals and allows precise measurement of its emissions.
• Conducted Emission Testing: This test checks the unwanted signals on power and data lines. The device is connected to a Line Impedance Stabilization Network (LISN) to measure the emissions conducted through these lines.
• Anechoic Chamber Tests: For radiated immunity, the device is placed in an anechoic chamber and exposed to electromagnetic fields from various directions and strengths to see if it continues to operate correctly.
• Reporting and Certification: After testing, the results are analyzed and compiled into a report. If the device meets the required standards, it can be certified for compliance with EMC regulations.

Certification and Documentation

All our standard products have a declaration of conformity, which you can request by emailing lsc@lscontrol.dk or you may download it from our product catalogue website by selecting the product in interest and go to section ‘other documentation’.

If you have electronic devices developed specifically to your requirements the EMC testing requirements are part of the requirements specifications of the development project.

 Our developers have many years of specialist knowledge and experience in working with compliance with EMC standards.

It is thus possible to receive a complete test report with measurements, description of test setup and detailed photo documentation in relation to the selected EN standard. There could be EN 60335 standard for electrical / electronic appliances for households and the like.

We also work with EN61010-1 for laboratory systems, often together with EN61000-6-3 and EN61000-6-1.