Yokogawa SR20-A32 pH Electrode Reference Sensor

The Yokogawa SR20-A32 pH Reference Electrode is an industrial reference sensor that provides a stable reference potential to complete the pH measurement loop when paired with a glass pH electrode. Part of Yokogawa’s SR20 series, it is designed for reliable operation in continuous process environments used in industrial liquid analysis for precise pH readings. This Ag/AgCl reference electrode uses a KCl-based electrolyte and offers a ceramic junction (with process-dependent variants) for robust performance at temperatures up to ~120 °C and pressures up to ~1 MPa (typical 145 psi). It mounts with Yokogawa immersion, flow, or insertion fittings and is built as an industrial electrode with replaceable or refillable design, making it suitable for water and wastewater treatment, chemical processing, power generation, and food & beverage applications. Common replacement: Yokogawa SR20-AC32.