Single-rod measuring cell for determining e.g. chlorine, in drinking water, has operating electrode and reference electrode forming electrically independent measuring systems, where system are commonly connected at electrode

摘要

The cell has a shaft (1) including an external thread (8) and embedded electrodes in a head area. A cover (2) includes an internal thread (9) forming a circular hollow chamber (4) at the shaft. The chamber accommodates the embedded electrodes and a reference electrode (10). Free ends of the electrodes are arranged at a front side of the shaft. An operating electrode (12) is formed in the shaft, and form electrically independent measuring systems together with the reference electrode. The measuring systems are commonly connected at the reference electrode to form an electrical reference point.