Failure analysis of constant temperature and humidity test chamber Humidity instability

The constant temperature and humidity box, also known as the constant temperature and humidity test box, is a three constant tester, a three constant experiment box or a temperature control machine. It is a machine and equipment used to test the characteristics of various raw materials in various natural environments. Together, it can also test the characteristics of various raw materials, such as high temperature resistance, low temperature resistance, dry resistance, waterproof, etc; It is also widely used in the inspection of electronic devices, household appliances, communications, dashboard, cars, plastic products, metal materials, food, organic chemistry, decorative building materials, diagnosis and treatment, aerospace and other handicrafts.

The constant temperature and humidity test chamber can be divided into two types: desktop integrated machine and column type. The key difference depends on the difference between the temperature that can be maintained and the ambient humidity, which affects the temperature and causes the difference in temperature. The column type constant temperature and humidity test chamber can do the following ultra-low temperature and dryness at room temperature, while the desktop integrated machine can do the opposite, as long as the temperature around room temperature and high and low temperature are done.

In the cold and humidity detection, it is inevitable that the overall target environmental humidity does not conform to the specific environmental humidity. The following is how the operator should deal with such things when they occur:

1. The specific ambient humidity in the constant temperature and humidity test chamber is less than the overall target ambient humidity

When such a thing happens, there will be a problem with the humidifier system software. It is necessary to check the direct drinking water system in the humidifier system software to see whether the water flow in the direct drinking water system meets the requirements and whether the water level is normal; If the above problems are eliminated, professional technicians must check the automatic control system of household appliances.

2. The specific ambient humidity of the displayed information far exceeds the set ambient humidity value

This is because the dry and wet ball gauze has been used for a long time, or some reasons cause the gauze to be hard and unable to absorb moisture and become dry; At this time, it is only necessary to clean the sand cloth or replace the gauze.