Pepperl+Fuchs”s CorrTran MV corrosion-detection transmitters are now capable of delivering information wirelessly via the WirelessHART protocol. This functionality enables users to determine the effectiveness of their corrosion inhibitors — and to detect and correct corrosion issues through upkeep and preventive maintenance. The two-wire transmitter is 4-20 mA and easily integrated with the HART protocol. Both WirelessHART and standard HART model CorrTran MV transmitters use a new algorithm of the LPR (Linear Polarization Resistance), HDA (Harmonic Distortion Analysis) and ECN (ElectroChemical Noise) measurement for corrosion monitoring accuracy. They also automatically calculate and update the Stern-Geary value (B-value) due to changes in other process variables to maintain maximum accuracy. At the completion of each measurement cycle, the respective corrosion rate and pitting value is calculated and made available to the plant personnel in the form of a 4-20 mA HART signal. The transmitters can be located in general purpose, intrinsically safe, explosion/flame proof and Class I, Division 2 hazardous locations, and are suitable for direct or remote mounting. New models feature the same design and dimensions as earlier versions and can be retrofitted to older units.