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The UV aging test box light tube is not working it may not be because the light is broken

Views: 8     Author: Site Editor     Publish Time: 2023-08-16      Origin: Site

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The UV aging test box light tube is not working it may not be because the light is broken

Some customers found a malfunction in the UV aging test box lamp tube during testing, causing the UV tube to not light up. They are calling to inquire if the lamp tube is broken? Do you want to replace the light tube? In fact, when the UV lamp is not on, it may not necessarily indicate that the lamp's lifespan has expired or that the lamp is damaged. The following analysis is made to address this issue:

1、 Electronic ballast malfunction: Use a multimeter to measure whether the n and l ports of the electronic ballast are 220V. If there is 220V input, use a multimeter to record the AC voltage measurement file. Place two probes on the lamp side of the UV aging test box and observe its voltage. If it is 220V, it indicates that the lamp itself is not faulty. If it is not 220V, it indicates that there is an internal fault in the electronic ballast.

2、 Small relay fault: When the IO board outputs normally, observe whether the corresponding small relay is engaged and whether the indicator light is constantly on. Is there 220V voltage on the input side (if there is no voltage supply for the small relay, only look at the circuit diagram to identify the fault source), and is there 220V voltage on the output side.

3、 Fault of the fluorescent UV lamp itself in the UV aging test box: After troubleshooting the above faults, if the lamp is not yet on and both ends of the lamp are black, the lamp itself has expired and needs to be replaced with a new lamp.

Summary: When the light is not on, do not easily conclude that the light tube is broken. First, check the light tube to identify the problem, in order to better carry out maintenance.

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