How to maintain dissolved Oxygen electrode?

The dissolved oxygen electrode is a commonly used water quality monitoring instrument for measuring the dissolved oxygen concentration in water. In order to ensure the measurement accuracy and service life of the dissolved oxygen electrode, certain maintenance is required.

The specific maintenance steps are as follows:

1. Cleaning the electrode: After each use, the electrode should be cleaned immediately to remove the attachment and dirt on the electrode surface. Generally, the electrode can be cleaned with deionized water or clean water, avoiding the use of organic solvents or other chemical reagents.

2. Calibration electrodes: Calibrate the electrodes regularly to ensure measurement accuracy. Calibration needs to use the standard solution, operate according to the instruction manual of the electrode.

3. Storage electrode: When storing the electrode, the electrode should be protected from direct sunlight, high temperature or high humidity, so as not to affect the performance of the electrode. The electrode can usually be stored in a dry, ventilated place and packed with a cover or plastic bag to protect the electrode surface from dust and contamination.

4. Replacing the electrode solution: The electrode solution is an important factor to maintain the stability and sensitivity of the electrode. Regular replacement of the electrode solution can ensure the measurement performance of the electrode. When replacing the electrode solution, it is necessary to operate according to the instruction manual of the electrode.

5. Prevent the electrode from drying: During the use of the electrode, the surface of the electrode should be avoided from drying, otherwise it will affect the performance of the electrode. If the electrode is not used for a long time, the electrode should be placed in a damp cotton cloth or fine gauze to keep the surface of the electrode wet.

In short, in order to ensure the measurement accuracy and service life of the dissolved oxygen electrode, it is necessary to regularly clean, calibrate, store and replace the electrode solution and other maintenance operations on the electrode. In addition, in the process of using the electrode, it is also necessary to prevent the electrode from being affected by adverse environments such as dryness and direct sunlight.