Overview

Before calibrating the pH sensor, we must first ensure that the signal wire connection of the electrode is correct. Secondly, we need to let the electrode identify all the standard solutions first to prevent the problem of wrong labeling of the standard solution. Finally, we need to erase other electrode information stored by the current controller, and we need to restore the calibration.

pH sensor calibration method:
1. Identify the standard solution
Unscrew the protective cover of the pH electrode, put the pH electrode into the three standard solutions and record the initial value. If the site conditions are insufficient, at least two standard solutions should be guaranteed, among which the zero standard solution pH 6.86 or pH 7 is necessary. Another slope standard solution can choose acidic or alkaline standard solution according to the customer's water quality.
2. Electrode Calibration
Our meter supports three-point calibration, and the user can calibrate the sensor sequentially from 6.86pH. Please check the video for a more detailed method.
3. Backtesting
After the calibration is completed, put the electrodes into the three standard solutions again, and check the measured values after calibration.

Daruifuno pH sensor calibration video

The above is the tutorial on the calibration method of the pH electrode. Our company focuses on the R&D, production and sales of water quality analysis instruments. The main products include online pH ORP analyzer, conductivity analyzer, turbidity analyzer, dissolved oxygen analyzer, COD analyzer, ammonia analyzer, etc. . If you need water treatment related products, please contact us.