The reason that the ultraviolet aging lamp of the UV aging test box does not light is: 1. The UV aging detection box generally adopts key membrane type thermostat and time relay combination control or TEMI880 touch screen controller and IO board centralized control. Let's talk about the combination of TEMI880 controller and IO board control UV aging test box lamp Failure of the tube: After setting the parameters such as illumination time and temperature on the touch screen, touch the run button to start the operation. Open the circuit diagram of the device to find the IO board relay contact corresponding to the light contact, and observe whether the relay indicator on the IO board is normal. Light, at the same time the multimeter hit AC measurement voltage 220V range, one end of the test pen on the IO board relay contact, the other end on the IO board's N terminal contact, if it is 220V, it proves that the lamp is off and the touch screen IO board No matter, if it is not 220V it means the touch screen or IO board is faulty or the IO board and the touch screen are connected with the loose cable. If it is a touch screen failure, it can only be returned to the factory for maintenance. If it is the illumination output contact of the IO board, then it only needs to be The light output line can be changed to another free terminal contact, and then on the left upper side of the touch screen operation interface Tap, tap the top right corner, enter the password (usually the default password, without having to enter), you can reset the output point. 2. UV light aging detection box small relay failure: In the case of normal output of the IO board, observe whether the corresponding small relay is engaged, and the indicator light is always on. Is there 220V voltage at the input (if there is no voltage input to the small relay at the input, you can only look at the circuit diagram to find the source of the fault), and if the output has 220V voltage. 3, ultraviolet light aging detection box electronic ballast failure: use a multimeter to measure the electronic ballast on the N and L port is 220V, if there is 220V input and then use a multimeter to AC voltage measurement file, put the two pens Look at the voltage on one side of the two copper pins of a lamp. If it is 220V, it can be proved that the cause of the lamp not shining is the lamp itself. If it is not 220V, it means that there is an internal failure of the electronic ballast. 4. The UV lamp has its own fault: After the above faults are eliminated, if the lamp is still off and both ends of the lamp are black, it means that the life of the lamp itself has expired and the new lamp needs to be replaced. Typical ASLI customers: â—† Liaoning Earthquake Administration â—† South China University of Technology â—† Ningbo Materials Research Institute â—† Shanghai Coating Technology Research Center â—† German TUV Laboratory in Shenzhen â—† Sichuan Ou Lipu Lighting Co., Ltd. â—† Shenzhen BYD Auto Co., Ltd. â—† LG Electronics (Huizhou) Co., Ltd. â—† Truly Semiconductor (Shanwei) Co., Ltd. â—† Guangdong Saihong Sapphire Technology Co., Ltd. â—† Zhongshan Youxin Auto Parts Manufacturing Co., Ltd.
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