led light box and use the main functions
LED light box tester, with high-precision digital display, high accuracy, shows clearly, the resistance ratio of more scientific, reasonable, fast, balanced and greatly improved the service life of LED light-emitting diodes, and reduces the failure rate of finished products. Isolated by high voltage power control technology, Test voltage output to ground zero, the use of safe and reliable.
Main use:
The tester is mainly used for LED light boxes, large LED neon signs, LED luminous characters, LED lights and other products in the current limiting resistor configuration, troubleshooting and leak detection.
Product Features
1. Leakage detection: At present most of the light box fitted with double-sided perforated aluminum plate light and for this reason aluminum plate spikes or feet touch the board lights will cause light box leakage, in the hundreds of thousand of lights to find the foot leakage point is also the producer of a headache thing. QQ-II type (second-generation security type) LED light box tester to increase this special feature, so that this fault detection and convenient, more secure product. Since QQ-II-type light box tester high voltage power supply isolation control technology, Test voltage output to ground zero, either accidentally touched the output are safe, reliable, and this is the simple test instrument can not do
2. Troubleshooting: past failures we use multimeter to check on the lamp from the hundreds of satellites to identify problems in the inefficient use of LED light box tester electronics division, sub-water-type investigation, fast, efficient and save time.
3. Configuration Resistance: Since different LED chips of different manufacturers of its internal resistance and voltage is not the same, in fact, there are no precise current limiting resistor ratio conversion methods, such as: red tube voltage of 1.8 ~ 2.2 V, Single work pressure difference is small, cascading up dozens of use, pressure would reach tens of volts, current large deviation, using QQ-II-type LED electronic light box tester can fundamentally solve the problem.
| Updated:2010.06.10 Source: Clicks:4334
