What role does wet bulb gauze play in high and low temperature humidity and heat test chambers

Although the wet ball gauze is a small accessory in the high and low temperature humid heat test chamber, but it determines the humidity display of the equipment, so when the wet ball gauze becomes yellow and hard because of long-term use, the humidity display of the device may be *, but this fault is also very well solved, as long as the wet ball gauze is replaced, but do you understand the replacement method of the wet ball gauze of the high and low temperature humid heat test box? The wrong way can lead to inaccurate test results of the
equipment.

1, high and low temperature humid heat test box wet bulb temperature indication and the amount of water inhaled by the gauze, surface evaporation of the situation 2, some tests stipulate that the wet bulb gauze must be woven of linen, otherwise it is difficult to ensure the correctness of humidity
.

3, high and low temperature humid heat box wet ball gauze placement is also exquisite: 1) high and low temperature humid heat test chamber gauze length is generally about
100mm.

2) The gauze should be tightly wrapped around the sensor probe, the probe is 25-30mm away from the humidity cup, and the gauze needs to be immersed in the water cup
.

Precautions for wet ball gauze during the test: 1, * period only do temperature, especially when doing a temperature test above 50 ° C, please remove the wet ball gauze
.

If the wet ball gauze is baked dry, its water absorption performance becomes poor, which affects the humidity detection accuracy
of the next humid heat test.

2, the test of wet ball gauze in a humid environment, will breed bacteria, too much bacteria will make the gauze agglomeration absorbent deterioration, so before contact with the wet ball gauze to wash hands, to prevent bacteria to bring to the wet ball gauze
.