Dissolved oxygen electrode maintenance

The dissolving oxygen meter is easy to install, is insensitive to other substances, and can monitor the use of electrolytes in the membrane and probe. Generally, the electrolyte and membrane are replaced every three to three years. Dissolved oxygen electrode maintenance precautions?

Dissolved oxygen electrode maintenance notes:

(1) The electrode of the dissolved oxygen meter should be cleaned in 1~2 weeks. If there is any contamination on the diaphragm, it will cause measurement error. Care should be taken when cleaning, taking care not to damage the diaphragm. Dissolve the dissolved oxygen electrode in clean water. If the dirt cannot be washed out, use a soft cloth or cotton cloth to scrub it carefully.

(2) The zero point and span of the dissolved oxygen meter electrode should be recalibrated from February to March.

(3) Regeneration of the dissolved oxygen electrode is performed approximately once every year. When the measurement range is not adjusted, the dissolved oxygen electrode needs to be regenerated. Electrode regeneration includes changing the internal electrolyte, replacing the diaphragm, and cleaning the silver electrode. If the silver electrode is observed to be oxidized, it can be polished with fine sandpaper.

(4) If the dissolved oxygen meter electrode is found to leak during use, the electrolyte must be replaced.

With reference to the above, the use of the dissolved oxygen meter is not only used correctly, but also important in terms of maintenance. Many customers have problems after they have bought it back. Most technicians are picking up electrodes. When I accidentally bumped the membrane head and broke the film, it caused too much negotiation between the customer and the supplier and the rework of the turnover. Therefore, when using it, you can be careful and avoid many things. Trouble.