Potence Controls offers Automatic Online SDI - Silt Density Index Monitor. Potence Controls manufactures Online Analytical Instruments for Water Treatment, Pharmceuticals, Food Processing, Breweries, Power Generation, Chemicals and Fertilizers, Refineries, Steel and Smelter, Automobiles, Textiles etc. The Automatic Online SDI - Silt Density Index Monitor has Continuous Sample Flow and Air Venting. The Automatic Online SDI - Silt Density Index Monitor complies with ASTM D4189-95. The Automatic Online SDI - Silt Density Index Monitor has Analogue and Relay Outputs.