Electromagnetic Compatibility (EMC) Testing is a requirement for most of the electrical products which emits or is subjected to electromagnetic disturbance. All electric devices or installations influence each other when interconnected or close to each other, e.g. interference between TV sets, GSM handsets, radios and nearby washing machine or electrical power lines. The purpose of electromagnetic compatibility (EMC) is to keep all those side effects under reasonable control.
The electromagnetic compatibility ensures that electrical and electronic equipment does not generate, or is not affected by, electromagnetic disturbance.
Each country or region applies their own regulations. Europe regulates EMC requirements through CE marking directives like EMC or RED. In USA, FCC regulates EMC related products with its FCC standards. Japan applies VCCI marking, South Korea applies KC marking for Electromagnetic Compatibility.
European Commission of EU published Electromagnetic Compatibility (EMC) Directive 2014/30/EU. The main objective of the EMC Directive is to guarantee the free movement of equipment and to create an acceptable electromagnetic environment whilst ensuring that equipment will function as intended in that environment. In order to achieve it, a harmonised and acceptable level of protection is required by the Directive, leading to full harmonisation in the EU.
Since some articles of EMC Directive (2014/30/EU) is written with legal terms, additional official guides can be followed to understand it better. EU published its guide about EMC, you can click here: Guide for the EMCD (Directive 2014/30/EU)
Electromagnetic Compatibility (EMC) tests are performed in specific rooms or test chambers which are defined by international standards. One of the EMC tests is Radiated Immunity (or Immunity Against Radiated Fields) in which the Equipment Under Test (EUT) is subjected to a Electric-field. E-field level depends on the standard applied. It is 3 V/m for some products, this can go up to 200 V/m. Radiated Immunity tests are mostly performed in Full Anechoic Chamber, with all surfaces are covered by ferromagnetic materials like ferrites or absorbers. For Semi Anechoic Chamber, ground plane is not covered with such materials.
What is an anechoic chamber?
An anechoic chamber is a room designed to completely absorb reflections of either sound or electromagnetic waves. They are also often isolated from waves entering from their surroundings.
You can watch below video to see an Full Anechoic Chamber (FAC):
Testups provides EMC testing services to researchers, product designers, manufacturers, importers and exporters who may need EMC testing service. In order to get EMC testing service, we recommend you to send us below information of your product:
- Electrical features
- Clock frequency
- Communication frequency
- Dimensions and weight
- Field of use
- Required standards (if exists)
- Required product markings (CE, FCC, VCCI, KC…)
After receiving above information from you, Testups will send you our quote. You will be able to see all EMC testing standards, specific to your product, in this quote. When you accept our quote, you will send test samples(s) to laboratory address. When purchase order and test sample(s) are received EMC testing will be scheduled. If you also want to attend EMC testing, please inform us when sending us purchase order, we will schedule laboratory for your visit.
When EMC testing service is finished, you will have EMC test report and your invoice.
Electromagnetic Compatibility (EMC) Tests are required for CE marking or other certifications of any electrical equipment, machinery, or device. Whether working with 220V AC, working with DC (battery or adapter), if an electrical product can electromagnetically affect its environment or it can be electromagnetically affected, EMC tests should be applied to that product. Whether EMC tests are applied to a product or which tests are applied is decided by considering the technical specifications of the product and the regulation and test standard to be applied.
There are various regulations and standards related to EMC tests:
EMC Directive 2014/30/EU,
Radio Equipment Directive 2014/53/EU,
Machinery Directive 2006/42/EC ,
Medical Device Directive 93/42/EC,
Military EMC tests MIL-STD-461,
Automotive Regulation No UN ECE R10.
Types of EMC tests
EMC tests are applied after the product standard is determined, EMC tests can be listed as follows:
- Radiated Emission (It is tested whether the electromagnetic signals in the product tested through EMC antennas are below limits)
- Conducted Emission (It is tested whether the electromagnetic emission caused by the tested product’s cables is below the limits)
- Electrostatic Discharge – ESD (IEC/EN 61000-4-2)
Radiated Immunity (IEC/EN 61000-4-3)
- Electrical Fast Transient / Burst (IEC/EN 61000-4-4)
- Surge (IEC/EN 61000-4-5)
- Conducted Immunity (IEC/EN 61000-4-6)
- Voltage dips, short interruptions and voltage variations (IEC/EN 61000-4-11)
- Harmonic Current Emissions (IEC/EN 61000-3-2)
- Voltage Changes, Voltage Fluctuations and Flicker (IEC/EN 61000-3-3)
Testups also offers on site EMC testing services for the larger products like huge machines.
Do you have a big product?
Do you want to learn specific EMC standards for your product?
If you contact us and send your product’s features, we are informing you which EMC testing standards shall be applied. In order to get a clear response, please share below information related to your product:
- technical features,
- field of use,
- the countries that it will be marketed.
Do you need EMC testing service?
Testups offer both pre-compliance EMC testing service and accredited EMC compliance testing service. Contact Testups, send your request by clicking here.
We are offering below services about EMC testing:
- Preliminary Design Review: Remove any question as to whether a product will meet the EMC requirements with pre-scan measurements. You can use these measurement results to modify your product and prepare it for formal approvals. This will reduce the likelihood of surprises during the final testing phase.
- Laboratory Testing: With our international laboratory network, our technical experts can provide laboratory testing services. We are covering testing standards for Europe, United States, Canada, Japan, Brazil, Australia, New Zealand, South Korea, Turkey and more.
- OnSite Testing: Technical experts of our partner labs can provide onsite EMC testing.
- Debugging or R&D Work: When your product fails from any EMC test, we also help you fix the problems. This decreases the time you spent for compliance of the product.
- Documentation: After EMC testing of your provide, we can provide you documentation preparation service. Formal test reports and other technical documentation is provided according to your requirements.
- Certification: In addition to EMC testing and reporting, if you need additional certification for your product, let us know.
- Consulting: Our partner experts and consultants is ready to fulfil your product EMC consultancy needs.