Let’s talk about the reasons why a high-low temperature and humidity test chamber trips immediately upon startup

I wonder if anyone has encountered the phenomenon where the equipment trips or trips the circuit breaker as soon as it is started during the use of a high-low temperature and humidity test chamber. Why does this happen?

One possible cause for the tripping of a high-low temperature and humidity test chamber could be related to the heating tubes: If the heating tubes are damaged, it can lead to the equipment tripping immediately upon startup. The inspection method involves using a multimeter to detect their resistance values and determine if the components are damaged. Additionally, the humidifying tubes, which are also a type of heating tube used to generate water vapor by heating water for humidity control, should be checked for damage using a multimeter as well. The damage to humidifying tubes is often due to a malfunctioning float ball in the water level control box, which fails to replenish water normally, resulting in dry burning. During inspection, follow the correct steps: First, set the equipment temperature to high (usually 40°C or 60°C), humidity to 0%, and then start and run the equipment. Observe if there is any tripping. If there is, it indicates a short circuit fault in the heating tubes. If no tripping occurs, set the humidity and run the equipment again. Observe if tripping occurs this time. If it does, it indicates a short circuit in the humidifying tubes. Staff can unscrew the screws on the side partition of the equipment, remove the partition, see the humidifier barrel, and replace the internal humidifying tubes.

Another potential issue could be with the equipment controller: If the controller malfunctions, it may cause a short circuit in the accessory system, leading to the tripping of the leakage switch and miniature circuit breaker.

Problems with the circulating motor: Use a screwdriver and multimeter to inspect and determine if the circulating motor and fan wheel are stuck or damaged.

That concludes the introduction to the reasons why a high-low temperature and humidity test chamber may trip or trip the circuit breaker immediately upon startup. If your equipment experiences such issues, you can use the above methods for inspection. For more information about the equipment, please visit our company’s website and continue to follow us.