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What should we do if the humidity in the constant temperature and humidity test chamber shows 100%? do if the humidity i

According to customer feedback, sometimes when using a reliability climate chamber for humidity testing, the machine will display a humidity of 100% or the actual humidity cannot reach the set humidity. Here is an introduction to how to solve this problem.

If the humidity shows 100% or fails to reach the set humidity, it is usually caused by the incorrect placement of the wet ball gauze. Of course, it may also be caused by the wet ball gauze not meeting the requirements. The wet ball gauze used in the reliability environment test chamber must be a special wet ball gauze woven from linen, and cannot be replaced by any gauze. (If you need wet ball gauze, you can purchase it from Guangdong Yuanyao).

In addition, the relative humidity reading is based on the difference between temperature and humidity. Strictly speaking, it is also related to the atmospheric pressure and wind speed at the time. The wet bulb temperature display value is related to the amount of water absorbed by the gauze and the evaporation on the surface. These are directly related to the quality of wet ball gauze.
 
The standard wet ball gauze also has detailed requirements. It should be 100mm long and tightly wrapped around the sensor probe. The probe should be 25-30mm away from the gauze groove. The wet ball gauze must be immersed in the water cup to ensure the correct humidity. The wet ball gauze should be replaced regularly, and the wet ball gauze should be removed when doing high temperature tests. When the wet ball gauze becomes yellow or hard, it should be replaced in time.

In addition, the relative humidity reading is based on the difference between temperature and humidity. Strictly speaking, it is also related to the atmospheric pressure and wind speed at the time. The wet bulb temperature display value is related to the amount of water absorbed by the gauze and the evaporation on the surface. These are directly related to the quality of wet ball gauze.
 
The standard also has detailed requirements. The wet ball gauze should be 100mm long and tightly wrapped around the sensor probe. The probe should be 25-30mm away from the gauze groove. The wet ball gauze must be immersed in the water cup to ensure the correct humidity. The wet ball gauze should be replaced regularly, and the wet ball gauze should be removed when doing high temperature tests. When the wet ball gauze becomes yellow or hard, it should be replaced in time.
 
In addition, another reason is that the gauze tank is short of water, so you need to check whether the water system is blocked by scale (if so, the hoses in the water system need to be cleaned, and the water filter needs to be replaced after 3-6 months of use). If there is no water in the water cup or there is a lack of water in the humidification tank, check whether the water pump is working properly.
 
If the self-test still cannot solve the problem, please contact us on the attention interface and our staff will contact you as soon as possible.

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