Installation and usage requirements for wet ball gauze in high and low temperature test chambers

When conducting humidity tests in high and low temperature test chambers, the operator usually places the wet ball gauze incorrectly, which can cause the humidity to display as100%This may be due to the use of gauze that does not comply with regulations, and not any gauze can replace the wet bulb gauze used in high and low temperature test chambers. The wet ball gauze in the test chamber has certain requirements, and the specific requirements are as follows:

1、 There are clear regulations for the placement of wet ball gauze in high and low temperature test chambers: the length of the gauze is100mmTightly wrapped around the humidity sensor probe, with the probe distance from the humidity water cup25-30mmSoak the gauze in a water cup to ensure the accuracy of humidity;

2、 According to regulations and standards, wet bulb gauze must be specially woven from linen“Wet ball gauze”Otherwise, it is difficult to ensure the accuracy of the reading of the wet bulb thermometer, that is, the correctness of the humidity;

3、 The relative humidity reading of the test chamber is based on the difference between temperature and humidity, and strictly speaking, it is also related to atmospheric pressure and wind speed. The wet bulb temperature reading is related to the amount of water inhaled by the gauze and the surface evaporation, which are directly related to the quality of the gauze.

Gauze is justHigh and low temperature test chamberOne of the small components, its frequent replacement is equivalent to equipment maintenance. The replacement of a small piece of gauze is so important, which reminds us to pay attention to the careful maintenance and upkeep of instruments and equipment in our daily lives.