Polarography is an electrochemical method for measuring substance concentrations in a solution. A special measuring cell is required for chlorine measurement. In this cell, a fixed voltage is applied between two electrodes to achieve an electrolytic reaction. The reduction current between the two electrodes is proportional to the free chlorine concentration present between the electrodes. In the CLF-1610, the surface of the electrode is polished by ceramic components to ensure stable measurement performance. This enables fast, precise, and maintenance-free measurement without reagents.
The polarographic measurement reaches its limits with exceptional pH values and pH value fluctuations due to the method. Strong deviations from the neutral pH range can affect the reaction speed and the equilibrium of the electrolytic reaction. In such cases, a different measurement method should be chosen.
