CorrTran from Pepperl+Fuchs is a two wires, 4…20 mA transmitter that evaluates either general or localized (pitting) corrosion in the same industrialized, transmitter housing. Harmonic distortion analysis (HDA) is applied to improve the performance of the industry accepted linear polarization resistance (LPR) technique used to measure corrosion rate. During a measurement cycle, CorrTran performs a unique electrochemical noise (ECN) measurement, which in combination with the corrosion rate data provides a mea-surement of pitting. At the completion of each measurement cycle, the respective corrosion rate or pitting value is calculated and made available to the plant personnel in the form of a 4…20 mA signal.
Hall 7, Booth C14
cpp 419
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