White Paper: Durable Chlor-Alkali pH Electrode
Elevated temperatures, presence of chlorine and high salt concentration throughout the chlor-alkali process make stable and reliable pH measurement with conventional pH electrodes a constant challenge. Further, the conditions mean electrode lifetime is usually short; therefore, costs in terms of sensor maintenance and replacement are high. A dual-membrane electrode that uses the process brine as a reference, is immune to measurement problems. In addition, digital transmission from sensor to transmitter provides exceptional signal stability.
This white paper explains:
- Membrane cell chlorine production
- Problems with conventional pH electrodes
- pNa/pH technology
- Measurement challenges
- Plug and Measure – fast and simple start up