Digital pH Sensor

E+H/Endress+Hauser

• Certified to ATEX, IECEx, CSA C/US, NEPSI, Japan and INMETRO for use in hazardous areas Zone 0, Zone 1 and Zone 2. • IIoT‑ready: Memosens 2.0 supports an extended memory unit for calibration and process parameters to enable improved trend identification. It lays the foundation for future predictive maintenance implementation and enhanced IIoT services. • Low operating costs: Supports laboratory calibration and fast on‑line electrode replacement, minimising production downtime and extending electrode service life. • Robust, low‑maintenance electrode: Long toxic‑diffusion path or optimised ion trap prevents reference electrode poisoning. Large‑area anti‑fouling PTFE diaphragm resists medium contamination. • The glass electrode covers the full pH measurement range at process absolute pressure up to 17 bar (246.5 psi). For media containing hydrofluoric acid, the optional F‑type glass electrode is available, e.g. for etching baths in semiconductor manufacturing. • Improved optional salt‑bridge function ensures reliable measurement in low‑conductivity applications such as boiler feedwater. • Non‑contact inductive signal transmission delivers high process signal integrity.