The pH-Value Sensor is an industrial measurement system designed for the continuous monitoring and control of the pH value in liquids. With its robust construction and integrated temperature compensation, the pH-Value Sensor ensures precise and stable measurement results even under demanding conditions. Measurements are taken using a high-quality glass electrode, which, in combination with a reference electrode, determines the pH value with precision. The pH-Value Sensor has a wide measuring range from pH 0 to 14 and a high resolution of 0.001 pH. The accuracy is ±0.1 pH, ensuring that even the smallest changes are reliably detected.

The system is equipped with a 3-inch TFT color display, which clearly shows all relevant measured values, status indicators, and settings. Operation is via an intuitive keypad with menu navigation. The pH-Value Sensor offers various operating modes, including measurement, calibration, and storage functions. Calibration can be performed on a one- or two-point basis to achieve optimal measurement results. The integrated real-time temperature compensation ensures accurate readings even at varying temperatures.

For integration into industrial control systems, two 4–20 mA analogue outputs, three relay outputs (SPDT, 250V AC/30V DC, max. 5 A), and an RS485 interface with Modbus RTU protocol are available. The pH-Value Sensor allows measurement and calibration data to be stored, which can be retrieved via the display. The controller housing is IP55-rated, and the sensor is IP68-rated, enabling use in harsh environments.

Typical applications for the pH-Value Sensor include water quality monitoring in wastewater treatment, process control in industry, drinking water monitoring, and measurement in surface and groundwater.