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Product name:
Digital pH Sensor
Product series:

CPS31E

Product brand:
E+H/Endress+Hauser
Product feature:
• Reliable results: Ceramic diaphragms ensure dependable measurement of low‑conductivity media. A three‑diaphragm design is recommended for media with low conductivity. • Robust performance: Optional salt ring effectively extends electrode service life. • Accurate measurement: Low electrolyte consumption with extremely low drift. • Memosens 2.0 technology supports an extended memory unit for storing calibration and process parameters, providing an ideal foundation for implementing predictive maintenance and advancing IIoT technologies. • Safe operation: Non‑contact inductive signal transmission makes measurement results immune to humid environments. • Excellent cost‑performance: Fast on‑site electrode replacement increases uptime; electrode regeneration further extends service life.
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Measuring principle:
pH is a measure of a medium’s acidity and alkalinity. An electrochemical potential develops across the glass membrane of the electrode, which depends on the pH value of the medium. H⁺ ions accumulate selectively on the outer membrane, generating an electrochemical potential, namely an electrochemical boundary layer with a potential difference. An integrated Ag/AgCl reference system acts as the reference electrode. The measured voltage is converted into the corresponding pH value based on the Nernst equation.
Product positioning:
High-end
Using scenario:
The Memosens CPS31E digital pH electrode is specially designed for pH compensation measurement in disinfection processes. It delivers stable pH measurement to ensure water quality safety for swimming pool water and drinking water. Featuring Memosens 2.0 digital technology, the CPS31E supports predictive maintenance, allows laboratory sensor calibration and fast on‑site replacement for convenient operation and maximised uptime. The moisture‑resistant electrode adopts a three‑diaphragm design to meet measurement requirements for low‑conductivity media. Typical applications: drinking water, swimming pool water, pH compensation for residual chlorine and residual bromine measurement.
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Jiangsu Pinyi instrument Co., Ltd.
Shanghai Ruiyingda measurement and control technology Co., Ltd.
We specialize in instruments and process control.
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