Product Overview

In its current implementation, the psychrometric extension of Sigmafine calculates absolute humidity as a function of relative humidity and dry bulb temperature.


This extension implements a method of determining the absolute humidity (H) as the mass of water vapor present per unit mass of dry air at a given temperature and 1 atm. of pressure.


Using this extension makes it easy to estimate condensation and evaporation in unit operations.

System Requirements

  • Microsoft .Net Framework 4.5 and above
  • PI Asset Framework 2016 and above
  • Sigmafine 4.6.8 and above


The psychrometric extension is still under development to include additional capabilities such as: extrapolation to different pressures, dewpoint calculation, relative humidity estimates and enthalpy calculations for air-water vapor mixture.

Contact us for more information.

Ordering Information

  • Product ID: SF-EXT-THE (for use with Sigmafine)
  • Sigmafine License Size: 1 000, 3 000, 6 000, 10 000, 15 000, 20 000 Elements

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