White Paper

Making Accurate pH Measurements

Accuratephmeasurements

By Frederick Kohlmann, Analytical Product Business Manager, Endress+Hauser

Like the old saying goes, give a man a watch and he always knows what time it is. Give him two watches and he never knows the correct time. Ah, but give him three watches, let him average the two closest times, and he will be fairly close to a correct time.

What do watches have to do with pH? In this article, we will tie the analogy of accurate time to pH measurement and show how to make more accurate, dependable and believable pH measurements by using three pH sensors.

So how do we measure a pH process accurately?

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