LED Tester | Christmas Light Tester - LISUN

 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 ...