Why is automatic temperature compensation required on pH electrodes?

Why is automatic temperature compensation required on pH electrodes?
Temperature significantly affects pH measurement results. As temperature changes, the activity of hydrogen ions (H⁺) in the solution also changes, leading to fluctuations in pH values. To ensure accurate measurement results, owning a pH meter with an automatic temperature compensation function is essential.

Operating principle of automatic temperature compensation:
When the pH electrode with an integrated temperature sensor comes into contact with the sample, the meter simultaneously performs two measurements: pH and temperature. Based on the measured temperature value, the pH meter automatically adjusts the pH result using a pre-installed smart algorithm. This algorithm calculates the change in pH with respect to temperature and compensates for it in the measurement result.

Benefits:
✔️ Ensures high accuracy in every measurement
✔️ Saves operating time and effort
✔️ Suitable for diverse environmental conditions

Inolab PH 7110 pH Meter Set 4 — WTW - Germany
WTW, a brand under Xylem Analytics, specializes in water quality measurement and analysis equipment. The WTW Inolab PH 7110 Set 4 pH meter is equipped with a 3-in-1 multifunctional electrode: pH (mV) measurement, temperature measurement, and automatic temperature compensation. This electrode is made of glass, resistant to chemicals and high temperatures, making it ideal for applications requiring high reliability and accuracy.