LED Tester | Christmas Light Tester - LISUN

Accessible parts of equipment with standard IEC 62368 General An accessible part of an equipment is a part that can be touched by a body part. For the purposes of dctermining an accessible part, a body part is represented by one or more of the specified test probes. Accessible parts of an equipment can include parts behind a door, panel, removable cover, etc. that can be opened without the use of a tool. Accessible parts do not include those that become accessible when floor standing equipment having a mass exceeding 40 kg is tilted. For equipment intended for building-in or rack-mounting, or for subassemblies and the like for incorporation in larger equipment,accessible parts do not include those that are not accessible when the equipment or subassembly is installed according to the method of mounting or installation specified in the installation instructions. A part is considered accessible if the instructions or markings intended to be followed require that a person phys...

Application Field : The salt spray test machine is also called the salt spray test chamber, the full name is the salt spray test chamber, which is mainly used to test the corrosion resistance of the samples. At present, it is widely used in the aerospace industry, automotive electronics, electronics and electrical, mobile phone digital, plastic products, metal materials and other industries to test its corrosion resistance. It also simulates the extreme conditions under natural conditions or working conditions to understand the samples to perform temperature conditions. Standard : It meets the following standards: IEC60068-2-11 ( GB/T2423.17 ), GB/T10125 , GB/T1771, ISO9227 , ASTM-B117 , GB/T2423-18, QBT3826 , QBT3827 , IEC 60068-2-52, ASTM-B368, MIL-STD-202, EIA-364-26, GJB150, DIN50021-75, ISO3768, ISO 9227 , 3769, 3770; CNS 3627, 3885, 4159, 7669 etc. Working principle of the salt spray test chamber : The working principle of the salt spray test chamber is relatively simple, mainly...

 ISO is the worldwide union of national standards. The international standard ISO 9227 has been developed by the ISO/TC 156 Metals and Alloys Corrosion Technical Committee. There are many factors affecting metal corrosion. A single salt spray resistance cannot replace the performance of other media, so this standard cannot be used as a direct guide to the corrosion resistance of the tested materials in all environments. At the same time, the performance of various materials in the test can’t be used as a direct guide to the corrosion resistance of these materials in use. Nevertheless, the method specified in this standard can still be used as a method to test the material with or without corrosion resistance. This standard specifies equipment, reagents and methods used in neutral salt spray (NSS), acetate spray (AASS), and copper accelerated acetate spray (CASS) tests. A method of assessing the environmental corrosivity of the test chamber is also specified. The materials of the ...

The oscilloscope is divided into a digital oscilloscope and an analog oscilloscope. With the development of technology, the requirements for test accuracy have been improved, and the analog oscilloscope has gradually been eliminated. Digital oscilloscopes basically support multi-level menus and can provide users with multiple choices. Also with storage, the most important indicator of a digital oscilloscope is bandwidth. The higher the bandwidth, the higher the requirements for the oscilloscope. The voltage signal output by the device is sent to the front-end amplifier through the coupling circuit, the signal is amplified, then sampled by the sample and hold circuit, digitized by the A/D converter, and then stored in the memory in digital form. Finally, the microprocessor waveform processing of digital signals shows on display screen.   OSP1102 Digital Oscilloscope LISUN’s OSP1102 series digital oscilloscopes use high-precision electronic components, and the test accuracy reaches ...

Many customers need aging LED lamps, but do not have a clear concept of aging test and life test. Aging test usually use aging test racks. What is aging test rack? Aging rack is dedicated to simulate the products in real conditions involved in the use of various factors on the aging of the product conditions to strengthen the process of the corresponding conditions. Why we need aging test? Electronic products, no matter components, parts or machines, all need aging test. Aging and test is not one concept, aging firstly and then test. Electronic product after manufacturing forms a complete product, which is able to play its role. But users may find a variety of problems after use, most problems occurs in the first few hours to dozens of hours. Later, formulate electronic products aging and test to simulate the using state or equivalent products. This process is done by the product manufacturer. The problem products will stay in factory, products without problems will sell to users...

The International Electrotechnical Commission (IEC) has published IEC 61000-4-5 :2014, “ Electromagnetic Compatibility (EMC)  – Part 4-5: Testing and Measurement Techniques –  Surge Immunity Test .” “IEC 61000-4-5:2014 relates to the immunity requirements, test methods and range of recommended test levels for equipment with regard to unidirectional surges caused by over-voltages from switching and lightning transients. Several test levels are defined which relate to different environment and installation conditions. These requirements are developed for and are applicable to electrical and electronic equipment. The object of this standard is to establish a common reference for evaluating the immunity of electrical and electronic equipment when subjected to surges.” “The test method documented describes a consistent method to assess the immunity of an equipment or system against a defined phenomenon. This standard defines a range of: test levels; test equipment; test set...

Lisun engineers visited Barcelona recently, this visit was mainly to install the  3m Integrating Sphere Test System for the customer and provide training service. This customer compared the test results of Lisun’s 3m Integrating Sphere Test System with the test results of Holophane(HEL) and LIA Laboratories.  This customer provided 4 samples to the third lab. Compared with LIA Laboratories, our tolerance are controlled within 5%: HAL – LED Highbay: 4.6% VMX LED Luminarie: 2.3% Corn Lamp: 2.5% Platek – Target Medium Prioette LED Luminaries: 0.5% The test report of Platek tested by Lisun 3m Integrating Sphere Test System The test report of Platek tested by LIA Laboratories-1 The test report of Platek tested by LIA Laboratories-2 Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or n...