Mettler Toledo InPro 4850i pH/ORP Sensor
March 2021, MARIETTA, GA
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InPro 4850i is a combination pH electrode featuring a sodium membrane glass that
uses the sodium concentration in the process (brine) as a reference.
The difference in electrical potential between the pH-glass and the sodium
reference glass is converted into the pH value. The sodium reference system is
highly resistant to chlorine and other oxidizing agents. This makes the sensor very
well suited for the demanding process conditions in chlor-alkali production.
Solution ground and shielding eliminate interference, and enable redox
measurement. Digital signal conversion ensures 100 % signal integrity and stability.
Intelligent Sensor Management (ISM) technology simplifies sensor handling and
reduces sensor lifecycle costs.
Precise and Reliable pH Measurements in
Chlor-Alkali Production
This application note reviews these problems
in relation to membrane cell chlorine
production and explains how the InPro 4850i
pH sensor solves all the measurement issues.
Chlor-Alkali Process pH Measurement
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