The measure of the pH and of the ORP is due to the transformation of a chemical phenomenon in electric potential that is read by a proper sensor called electrode.The electrodes are active elements that have limited life, they have to be periodically calibrated with buffer solutions.
The electrodes in the illustration that follows,are of the combined type (measure+reference) without maintenance and differentiate owing to their chemical and physical characteristics that make them suitable for general application.
Seko selected, among the most skilled manufactures,a range of electrodes that have been tested for a long time in several and different applications.
The elements that have to be considered in the choice of the electrodes are : range of measure, temperature, pressure, chemical substances present in the process, type of assmbly of the electrode in the system.













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