In today's society, wireless products have penetrated into every aspect of our lives, from smartphones and tablets to wireless headphones and smart watches. Since these products are related to wireless communication technology, CE marking is required to ensure that they comply with relevant regulations and standards. This article will discuss the application process for CE certification of wireless products and the EMC test requirements for products.
The process of applying for CE certification generally includes the following steps:
1.Determine the directives and standards applicable to the product. Depending on the product characteristics and application, the EU directives and relevant standards that need to be followed, such as the RED Directive and the EN 300 328 standard, are determined.
2.Select a certification body. Choose an organization with the relevant certification qualifications and experience to ensure that it can provide accurate testing and evaluation services for the product.
3.Preparation of technical documentation. According to the requirements of directives and standards, prepare relevant technical documents, including product specifications, circuit schematics, PCB layout diagrams, component lists, etc.
4.Conduct product testing. The product is sent to a certification body for testing, including wireless performance, electromagnetic compatibility (EMC), safety, and more.
5.Review and issue certificates. The certification body reviews the technical documentation and test results, and issues a CE certificate if the product meets the requirements of the relevant directives and standards.
In the process of applying for CE certification, the electromagnetic compatibility (EMC) test of the product is an important link. EMC testing mainly includes two aspects: radiated emission test and radiated immunity test. For wireless products, the radiated emission test mainly examines whether the wireless transmission power and spectrum characteristics of the product in each frequency band meet the requirements of relevant standardsThe radiated immunity test mainly examines the performance of the product when it is subjected to external electromagnetic interference. In order to ensure the accuracy and reliability of the test results, a series of preparations and precautions need to be carried out:
1.Choose the right test site and equipment. The test site should meet the requirements of relevant standards, such as open field, anechoic chamber, etc.;The test equipment should be calibrated and accredited.
2.Take a ** test. Before the formal test, you can conduct a test to understand the performance and potential problems of the product, and adjust and optimize it according to the test results.
3.Pay attention to the installation and use environment of the product. The environment in which the product is installed and used may have an impact on its electromagnetic compatibility, so care needs to be taken to adjust the position and orientation of the product, as well as to ensure that the surrounding environment is clean and interference-free.
4.Tests are carried out in accordance with the requirements of the standard. According to the requirements of relevant standards and directives, test methods and procedures are strictly followed to ensure the accuracy and reliability of data.
5.Analyze test data and take action on improvements. According to the test results, analyze the electromagnetic compatibility performance of the product, and take corresponding improvement measures for the existing problems to improve the performance and quality of the product.
The application process for CE certification of wireless products and the EMC testing requirements of products is a rigorous process, and every link needs to be taken seriously. By understanding the requirements of relevant directives and standards, selecting appropriate certification bodies and test methods, and paying attention to the installation and use environment of the product, the electromagnetic compatibility performance of the product can be improved, so as to successfully obtain the CE certification and enter the European market for sale.