About This File

Wet Bulb Temperature

Method Used for Calculating WBGT

• Source: https://www.omnicalculator.com/physics/wet-bulb

• Indoor Only-using Ambient Temperature and Humidity

• Calculation: WBGT=(.7*Tw)+(.3*T)

• Tw = T * arctan[0.151977 * (rh% + 8.313659)^(1/2)] + arctan(T + rh%) - arctan(rh% - 1.676331)+ 0.00391838 *(rh%)^(3/2) * arctan(0.023101 * rh%) - 4.686035

• Equipment Used

• Compactlogic Processor (1769-L30ER)

• Analog Input Card Configured for 4-20 mA (1769-IF4)

• Humidity/Temperature Transmitter (Omega Item#: HX303AC)