Measurement probe : ozone, pH value, free chlorine
202630 JUMO

These membrane-covered, amperometric measuring cells are used to measure the concentration of free chlorine, chlorine oxide or ozone in aqueous solutions (e.g. drinking water, swimming pool water, industrial water, process and cooling water).
The measuring cell for free chlorine can be used to measure the following anorganic chlorination agents: chlorine gas (Cl2), electrolytically generated chlorine, sodium hypochlorite (NaOCl, chlorine bleaching solution), calcium hypochlorite (Ca(OCl)2) or chlorinated lime (Ca(OCl)Cl).
The measuring cell can be used to measure chlorine dioxide from chlorite/chlorine and chlorite/hydrochloric acid plants.
The ozone measuring cell can be used to measure electrolytically generated ozone, for instance.
The electronics integrated in the measuring cells provides a temperature compensated 4...20 mA current signal. Calubration is carried out in a downstream device (indicator, controller, recorder, PLC, etc.).
The measuring cells can be directly connected to a suitable indicator and control device. The indicator/control device JUMO dTRANS Az 01 (data sheet 20.2550) is especially suitable to be combined with the measuring cells. It provides the voltage required for the supply of the measuring cell and allows for easy calibration of the measuring system.