Wet Bulb Dry Bulb Meter

The center 317 is a humidity temperature meter with a humidity accuracy of 2 5.

Wet bulb dry bulb meter.

The uncovered thermometer measures dry bulb temperature while the one covered with wet cloth measures wet bulb temeprature. Both thermometer readings are taken and the difference between them allows us to calculate the humidity. The meter uses a mathematical model to determine the waterless wet bulb calculation through a combination of dry bulb temperature globe temperature relative humidity and air flow sensors. The dry bulb is a common mercury liquid thermometer to measure the air temperature the wet bulb is a second mercury liquid thermometer whose bulb is covered by a muslin bag which is kept moist.

The knowledge of only two of these values is enough to determine the state of the moist air including the content of water vapor and the sensible and latent energy enthalpy in the air. Since both the thermometers are placed side by side the mositure from wet wick may affect the readings of dry bulb thermometer to avoid this the wet bulb thermometer is placed at the lower level. Dry and wet bulb method. 4 0 out of 5 stars 1.

Fieldpiece meters like the arh5 and the arh4 are staple instruments for every technician tool box. Fieldpiece prh2 is a pocket type digital psychrometer that comes with a friendly price point. At 100 relative humidity the wet bulb temperature is equal to the air temperature dry bulb temperature. Relative humidity and temperature play a large role in creature comfort and commissioning of hvac systems.

3 6 out of 5 stars 13. Get it as soon as thu sep 24. 2 in 1 digital humidity and temperature meter. At lower humidity the wet bulb temperature is lower than dry bulb temperature because of evaporative cooling.

The dry bulb wet bulb and dew point temperatures are important to determine the state of humid air. The wet bulb temperature wbt is the temperature read by a thermometer covered in water soaked cloth wet bulb thermometer over which air is passed. Wet bulb dry bulb and relative humidity. Accurately measure any environments temperature relative humidity rh dew point wet bulb temperature one step switch between c and f device will power off automatically to save battery when not in use in several minutes adjustable lcd backlight for clearly showing data.

The sensor is protected with a pull up sleeve which protects the unit whilst carrying it around. This tool is very easy to use slim and provides instant reading through the screen over the wet bulb rh dew point and dry bulb temperatures. Wet dry bulb hygrometer wall mounted thermometers eisco labs. Due to the small 2 inch length probe we classify this one as the entry level model for duct inspection works.

Traditionally humidity was measured by the dry and the wet bulb method. Our range of wet bulb dry bulb meters. List view grid view.