Expanding Fluid Conductivity Measurements

Four-electrode conductivity sensors improve performance over a wider measurement range

Four-electrode conductivity ©Endress+Hauser

A four-electrode conductive sensor compensates for polarization effects.

Fluid conductivity measurement is used across a range of industries and applications. Accurate and reliable conductivity measure is key to the quality of many products and processes. Today, four-electrode conductive conductivity sensors are available to span a greater range than two-electrode sensors, and are available in more compact designs. These sensors are well suited for applications in many process, virtually anywhere a broad range or compact design is required.

Fluid conductivity

Fluid conductivity is a critical analytical measurement used in many industrial processes including those found in life sciences, food and beverage, chemicals and others. Two-pole conductivity and inductive conductivity sensors have been available for many years, but each are limited—the first is good for measuring low conductive fluids while the second works well with high conductive fluids. The most recent development is a four-pole sensor that measures conductivity over a much wider range.