Sensor for the measurement of chlorite. Membrane-covered, amperometric, potentiostatic 3-electrode measuring system.

• Measured variable(s): chlorite from acid/chlorite method, chlorine/chlorite method, chlorite/oxidant method
• Calibration: at the controller, via analytical determination of chlorite
• Interferences: Mn²⁺, nitrite, Fe²⁺
• No cross sensitivity to chlorine dioxide, chlorine or chlorate
• pH range: 6-9
• Pressure range: 0‒5 bar, without outgassing, no pressure surges and/or fluctuations
• Temperature range: 0–40 °C (no ice crystals in the water)
• Integrated automatic temperature compensation
• Response time: T90 approx. 1 min
• Flow rate: approx. 30 l/h
• Shaft length: standard 175 mm (mA version up to 220 mm)
• Connection: standard 4-pin plug or modbus RTU with M12 socket
• Material: PVC, PEEK, stainless steel 1.4571, membrane