RS-485 pH sensor KWS750

Modbus

Water quality sensor online monitoring PH sensor PH transmitter KWS750 Signal output: RS-485 (Modbus/RTU protocol) 1. Introductory Hydrogen ion glass electrode and reference electrode were used to form a galvanic cell. In the process of ion exchange between hydrogen ions in the glass film and the measured solution, the concentration of hydrogen ions in the solution was detected by measuring the potential difference between the electrodes, so as to measure the PH value of the measured liquid. PH sensor, commonly known as PH probe, is composed of glass electrode and reference electrode. The glass electrode consists of a glass support rod, a glass film, an internal reference solution, an internal reference electrode, an electrode cap, and a wire. The reference electrode has a known and constant electrode potential, and calomel or silver/silver chloride electrodes are commonly used. Because the PH value is related to temperature, it is generally necessary to add a temperature electrode for temperature compensation to form a three-pole composite electrode. Used for environmental water quality monitoring, acid/alkali/salt solution, chemical reaction process and industrial production process, it can meet the requirements of online pH measurement for most industrial applications.