New High-Temperature pH Sensors. The Rosemount Analytical high performance pH sensors incorporate several design innovations that prolong the life of the sensor in difficult applications. The 3300/3400 series were engineered for and evaluated in high temperature processes, which provide the harshest test of pH sensor design. This process validated the improved durability of the pH glass electrode, the increased stability of the reference electrode and the overall reliability of the mechanical design. The resulting sensors live longer, respond faster and drift less thereby minimising maintenance and lowering the total cost of ownership ...

List of pH Sensors Manufacturers:

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Orbipore CPS91D - Digital pH sensors with Memosens technology. Measuring range 0...14 pH, Operating temperature 0...110 °C / 32...230 °F, Operating pressure 0...13 bar/0...188.5 psi

Orbisint CPS11D - Digital pH sensors with Memosens technology. pH range 0...14, Operating temperature: 0...135 °C (-15...80 °C) / 32... 275 °F (5...176 °F), Operating pressure: max. 16 bar (232 psi)

Ceragel CPS71D - Digital pH sensors with Memosens technology with double chamber reference system. Measuring range: 0...14 pH, Process pressure: max. 13 bar / 188.5 psi

DPS1 - Digital pH Sensor, max. operating temperature 60 °C (140 °F).

DRS5, pHD sc, Differential ORP Digital Sensor, max. operating temperature 60 °C (140 °F).

DPD1P1/P3, R1/R3, 2P1/3P1, 1P5/P6 - Differential pH Digital Sensor, max. operating temperature 70 °C (158 °F).

Articles, Papers and References

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How to measure pH ? (Technical notes)

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Brian LaBelle, Sensing pH, Controlling pH, InTech, May 2005