VAPOR SORPTION ANALYZER

The Vapor Sorption Analyzer (VSA) brings click-and-read efficiency to soil water characteristic curves (SWCC). In 24 to 48 hours, the VSA generates curves with up to 200 data points (water potential vs. water content) for both adsorption and desorption. 

The VSA works in the dry (-10 to -475 MPa) range. You can create automated soil water characteristic curves and generate all the correlations with clay activity, surface area, and swelling potential. 

With the new static feature, you can hold humidity constant and look at the way soil takes up water into its crystal structure (2:1 clays) and monitor water content change over time. 

• Rapid Soil Water Characteristic Curve generation.
• Fast expansive soil characterization.