Functionality of a membrane-covered amperometric sensor
2- and 3-Elektode systems. A nozzle of the flow-through chamber with 6mm diameter approximately 15 millimeters distance brings a constant jet of fluid (symbolized by a blue arrow) with the disinfectant in a direction plumb to the membrane (1). The membrane allows molecules of the disinfectant mainly pass through . These molecules put a pathway in the electrolyte liquid (2) to the working electrode (3) back. The working electrode (3) is of precious metals (gold or platinum) so they do not corrode. The working electrode (3) is with a very small but accurate electrical voltage.