How it Works
SMARTCORR® Electrical Resistance ER probes measure the change in electrical resistance of a sacrificial element exposed to the process fluid relative to a reference element sealed within the probe body. If the element corrodes uniformly, the change in resistance of the exposed element over a fixed time period is directly proportional to the average corrosion rate for that period. ER probes can be used in both conductive and non-conductive liquids and vapors.