By ABB Measurement & Analytics
To many potential users of its measurement, ORP is an intimidating term. In the first place it has an obscure full name, "Oxidation-Reduction Potential," and an equally obscure alias, "Redox." Additionally, warnings about ORP measurement as being nonspecific and subject to variability with any slight change in chemical constituents add to the level of intimidation. Despite this, ORP measurement has hundreds of successful applications. Typically, ORP sales are five percent of pH sales. More than 20,000 ORP control loops are purchased each year.