Environmental Chamber | Climatic Chamber | Thermal Chamber | Salt Fog Chamber - LISUN

Introduction The UL flammability rating is a critical standard that classifies materials based on their ability to withstand flame exposure. This rating system is essential for ensuring the safety and reliability of products, especially in industries like electronics, lighting, and household appliances. The UL 94 test method, which includes both horizontal and vertical flammability testing, is widely used to assess the flame resistance of plastic materials used in these industries. To perform these tests accurately, specialized equipment like the LISUN HVR-LS Horizontal Vertical Flame Tester is employed. This article delves into the details of UL flammability rating, explaining the testing procedure, applications, and how the LISUN HVR-LS tester plays a crucial role in compliance with these standards. Understanding UL Flammability Rating The UL flammability rating is part of the UL 94 standard, which measures the flammability of plastic materials used in electronic devices and applianc...

Abstract The hipot test, short for “high potential” test, is crucial for assessing the dielectric strength of electrical components, especially capacitors. It verifies that these components can withstand high voltages without breaking down or leaking excessive current. The key parameter in this test is the hipot test acceptable leakage current, which defines the limit of current that can flow through a dielectric without posing safety concerns. This article will explore the significance of acceptable leakage current in capacitor testing, detail the procedures for conducting hipot tests using the LISUN HIPOT10-100KV AC/DC Hipot Tester, and provide insights into industry standards that define acceptable leakage levels. 1. Introduction Capacitors are essential components in electronic circuits, serving functions such as energy storage, filtering, and voltage regulation. Due to their role in handling electrical energy, ensuring their reliability and safety is paramount. One of the key meth...

Abstract Electrostatic discharge (ESD) is a critical concern in semiconductor device manufacturing and testing, as it can cause significant damage to integrated circuits (ICs). Among the various ESD models used for testing, the Human Body Model (HBM) is the most prevalent for simulating electrostatic discharges that mimic human contact with sensitive devices. This paper explores the ESD HBM model and its relevance in the semiconductor industry, focusing on the LISUN ESD-883D HBM/MM ESD Simulators for IC Testing. We delve into the principles behind the ESD HBM model, its testing standards, and how the LISUN ESD-883D system addresses the needs of IC testing, ensuring device safety and compliance. 1. Introduction Electrostatic discharge (ESD) is a transient flow of electrical current that occurs when two electrically charged objects come into contact or close proximity. ESD can result in permanent damage to semiconductor components, affecting their reliability and functionality. In semico...

Introduction In industries where precise color measurements are crucial, such as printing, textiles, plastics, and paint manufacturing, the need for accurate and portable color measuring devices has never been more essential. The pocket colorimeter has become an indispensable tool, offering convenience and precision for quick, on-site color evaluations. One such device is the LISUN CD-320PRO Portable Colorimeter/Chroma Meter, known for its accuracy and portability. This article aims to provide a detailed examination of pocket colorimeters, focusing on the LISUN CD-320PRO model. We will explore how it operates, its applications, advantages, and the specific technical details that make it stand out from other devices on the market. Additionally, performance data will be presented to demonstrate its effectiveness in real-world scenarios. Overview of Pocket Colorimeter Technology A pocket colorimeter is a compact, handheld device used to measure the color differences (or colorimetric value...

Introduction The dustproof rating test is an essential aspect of evaluating electronic devices, enclosures, and other industrial equipment that are exposed to harsh environments. Understanding how effectively a product can withstand dust intrusion is crucial for determining its long-term durability and performance. The dust measuring instrument plays a critical role in accurately assessing the dustproof performance of various products. In this article, we will explore how the LISUN SC-015 Dustproof Testing Machine (Dust Proof Chamber) evaluates products against industry dust resistance standards (IP ratings). We will dive into the specifics of dustproof testing, compare IP ratings, and showcase the performance data gathered using dust measuring instruments during tests. Overview of IP Dust Resistance Ratings The Ingress Protection (IP) rating system is used to define the sealing effectiveness of enclosures against the intrusion of dust and liquids. The first digit of the IP code refers...

Introduction When testing the luminous flux and other photometric properties of LED lighting, integrating spheres are essential tools for accurate measurements. These measurements, often referred to in terms of the light meter lumen, provide critical data for quality control and product development. A common debate in the photometry field is whether one-piece (seamless) integrating spheres offer better precision than traditional assembled ones. This paper focuses on comparing the testing accuracy of one-piece integrating spheres, particularly in the context of the LISUN LPCE-2 High Precision Spectroradiometer Integrating Sphere System, against traditional assembled integrating spheres, especially for light meter lumen readings. The Role of Integrating Spheres in Light Meter Lumen Testing The integrating sphere is crucial in measuring luminous flux, chromaticity, and other optical properties by evenly distributing the light from a source within its surface. The light meter lumen reading...

The measurement of light wavelength is a fundamental aspect of photometry and spectrometry, crucial for applications across various scientific and industrial fields. Accurate measurement of light wavelengths is essential for understanding the properties of light sources, materials, and their interactions. This paper explores how to measure light wavelength using the LISUN LMS-6000 Portable CCD Spectroradiometer, detailing its operational principles, methodologies, and applications. Introduction to Light Wavelength Measurement Light is an electromagnetic wave characterized by its wavelength, which determines its color and energy. The ability to measure light wavelength accurately is vital in fields such as: • Lighting Design: Ensuring that lighting meets aesthetic and functional requirements. • Environmental Monitoring: Assessing the impact of light pollution and the quality of light in different environments. • Quality Control: Verifying the characteristics of light-emitting devices, i...