Rotary dry wet bulb directions for use

Rotary temperature and humidity meter, the temperature range of 0 - 50 c, humidity range of 0 - 100%RH。 Rotating the temperature and humidity meter consists of two glass thermometer dry foam glass bulb thermometer in two glass thermometer exposed to air, shows the air temperature or room temperature; Soaked the glass bulb of the thermometer was wet cloth, because evaporation heat water in wet cloth, so wet thermometer readings than dry dip thermometer readings. And on the same day the air is dry, the faster evaporation, heat, the more the greater the difference of the two thermometer readings; Whereas the more water vapor in the air humidity is bigger, namely the slower evaporation, the smaller the two thermometer readings is poor, so the two thermometer readings can reflect the content of water vapor in the air. According to the temperature and humidity meter attached to the table, dry bulb - Humidity, temperature and dry bulb temperature of the cross of digital is the humidity, such as: dry bulb 18 degrees, 15 degrees wet bulb, the difference of 3 degrees of horizontal bar and dry bulb 18 degrees of column cross 73 means a humidity of 73%. Rotary dry wet bulb is one of the determination of the temperature, gas wet instrument. Structure: made up of two same ordinary thermometer, one is used to measure the temperature, according to dry bulb thermometer. Another in ball encase with distilled water wet gauze, gauze bottom into distilled water, according to wet bulb. Due to cover the wet bulb gauze after absorbing water evaporation heat absorption, the small in number than the dry bulb thermometer readings. Wet bulb gauze often want to get a new one. When the air is dry, wet bulb gauze to evaporate quickly, absorption of heat, the two thermometer readings difference is big. Two thermometer readings of the greater the difference, the air is dry. When water vapor in the air of a lot of wet bulb gauze evaporation is slow, less heat, the two thermometer readings of the difference is small. The smaller the two thermometer readings is poor, the air is wet. Rotary temperature and humidity meter ( Rotary temperature and humidity table) Mainly used for high precision demand of humidity and temperature measurement, or teaching instrument use!