Water vapor pressure calculation - HMT120

HMT120 User Guide
Document code
M211244EN
Revision
D
Language
English
Product
HMT120
Document type
User guide

Vapor pressure refers to the vapor pressure of water in air or other gas. Water vapor has a partial pressure Pw which is part of the total pressure of the gas.

Water vapor pressure (Pw) is calculated with the following formula:

P w = R H ⋅ P w s 100 ⁢                               [ h p a ]