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Abstract: This paper focuses on the EMC EFT immunity tester, especially the LISUN EFT61000 – 4 EFT Immunity Measurement product. It elaborates on the principles of electrical fast transient (EFT) and burst phenomena, the significance of EFT immunity testing, and the relevant international standards. The structure, features, and operation procedures of the LISUN EFT61000 – 4 are introduced in detail. Through theoretical analysis and practical application examples, this paper aims to provide a comprehensive understanding of EFT immunity testers and their crucial role in ensuring the electromagnetic compatibility of electrical and electronic equipment.​ 1. Introduction​ In the modern era of increasing electrification and digitalization, electrical and electronic equipment is everywhere. However, with the growing complexity of the electromagnetic environment, the interference between different devices has become a prominent issue. One of the typical and common types of electromagnetic inte...
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Abstract Conducted emissions, a critical component of electromagnetic interference (EMI), refer to the propagation of unwanted electromagnetic energy through conductive media such as power lines, cables, or connectors. Accurate measurement of conducted emissions is essential for ensuring electronic devices comply with international standards, avoiding interference with other equipment, and maintaining system reliability. This paper focuses on the principles, standards, and practical implementation of conducted emissions tests, with a detailed analysis of the LISUN EMI-9KB EMI Test Receiver system—a specialized tool designed for conducted and radiated emissions testing. The system’s configuration, technical specifications, compliance with international standards (e.g., CISPR15:2018, EN55015), and application scenarios are explored, highlighting its effectiveness in conducting precise and reliable conducted emissions tests. 1. Introduction In an increasingly interconnected world, electro...
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Abstract​ With the widespread application of light-emitting diodes (LEDs) in lighting, displays, and medical devices, concerns about their potential photobiological hazards—such as retinal damage from blue light exposure—have grown significantly. The LED Photobiological Radiation Safety Test has become a critical procedure to evaluate these risks and ensure compliance with international standards. Traditional laboratory-based testing systems, while accurate, lack mobility, limiting their use in field inspections, production lines, and on-site quality control. This paper introduces the LISUN EN62471-P Portable Retinal Blue Light Hazard Tester, a device developed based on laboratory-grade LED Photobiological Radiation Safety Test principles to address this gap. It details the tester’s design, technical specifications, compliance with standards (e.g., IEC 62471), and practical applications. The analysis demonstrates that the EN62471-P maintains high accuracy while offering portability, ma...
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Abstract Electrostatic discharge (ESD) poses a significant threat to the reliability and performance of semiconductor devices, such as integrated circuits (ICs), light-emitting diode (LED) chips, and transistors. To ensure these devices can withstand ESD events, standardized testing using Human Body Model (HBM) and Machine Model (MM) ESD simulator is critical. This paper focuses on the LISUN ESD-883D, a specialized Human Body Model (HBM) and Machine Model (MM) ESD simulator designed for IC testing. It details the simulator’s design principles, compliance with international standards, technical characteristics, specifications, and practical applications. The analysis highlights how the ESD-883D provides accurate, reliable, and cost-effective ESD immunity testing, supporting quality assurance in semiconductor manufacturing and research. 1. Introduction Semiconductor devices are increasingly miniaturized and sensitive to electrostatic discharge (ESD), which can cause immediate failure or ...
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Abstract Electrostatic discharge (ESD) generated by human bodies or between objects poses significant risks to electrical and electronic equipment, potentially causing malfunctions or permanent damage. To ensure the reliability of such equipment, evaluating their ESD immunity is essential. The electrostatic discharge gun, as a core testing device, simulates real-world ESD events to assess equipment performance under specified voltage conditions. This paper focuses on the LISUN ESD61000-2 series electrostatic discharge guns, detailing their working principles, technical specifications, calibration data, and applications. It highlights how these devices adhere to international standards to ensure the comparability and reproducibility of ESD tests, providing a comprehensive reference for researchers and engineers in the field of electrical and electronic product testing. 1. Introduction In daily operations, static electricity accumulation on human bodies or objects can lead to sudden elec...
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This customer is affiliated with Conformity Assurance , a specialized organization in the fields of testing, inspection, conformity assessment, quality control, and safety evaluation. With a network of over 18 advanced testing and inspection laboratories strategically located across major cities in the Kingdom of Saudi Arabia and key customs ports, this company ensures broad regional coverage. The company also maintains a strong international presence through its offices in the GCC countries, the Middle East, North Africa, and India. Recognized as one of the world’s leading certification bodies, this company delivers a competitive edge to its clients by ensuring compliance, enhancing quality, and building trust across global markets. The client initially learned about our testing equipment through one of its affiliated laboratories. After visiting our showroom and laboratory in person, they gave high praise to the quality of our products and our comprehensive after-sales service system...
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This organization is one of the world’s leading providers of testing, inspection, and certification services. In recent years, it has established a regional branch in Saudi Arabia, serving as a benchmark service center for the Middle East, Africa, and Indian markets. Backed by a team of highly experienced international experts, the organization operates across more than 40 countries and regions. It is dedicated to providing comprehensive solutions for enterprises, healthcare institutions, government agencies, and research organizations, covering multiple dimensions including safety, quality, innovation, environmental protection, and business sustainability. As one of the five officially recognized certification bodies by the Saudi Standards, Metrology and Quality Organization (SASO), the agency is also among the largest certification service providers globally. For the Saudi market, it offers a wide range of certification services involving products, processes, and management systems, ...
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