How To Maintain The PH Electrode Of The Water Quality Detector?

- Dec 16, 2019-

In the laboratory, researchers will use water quality detection equipment to perform multiple tests on some liquids, such as pH, ORP, conductivity, temperature, and turbidity. When many people encounter this situation, they are the first to think of it. Is there a problem with the quality of the testing instruments? If you use instruments from regular manufacturers, sometimes such small probability problems will also occur. But sometimes when there are problems with some parts of the water quality testing equipment, it is more likely that the testing staff did not pay attention to the use of the specification, or it was caused by negligent daily maintenance, such as the most common PH electrode;


We found that many customers of water quality testing equipment responded very well when they first started using the testing equipment, but when slowly testing the pH of the liquid, the response time was too slow, the percentage theoretical slope was too low, and the alkali error Excessive problems, in fact, these problems are a precursor to damage to the PH electrode. If you do not deal with these problems in time, it will easily cause complete damage to the PH electrode;


How to maintain the PH electrode when using a water quality detector in daily life?


There may be some water quality inspectors who know better, but we find that most people are not familiar with the maintenance of PH electrodes. For example, everyone knows that the water quality detector needs to clean the PH electrode after use. But what many people may not know is that for different pollutants attached to the electrode, the corresponding cleaning method is different. For example, when cleaning the PH glass electrode, avoid touching or scratching the glass sensitive film. The glass used for PH-like electrodes is relatively soft, and any damage will cause the charge instability of the PH electrode to occur, which will cause errors in the value of PH measurement;


In addition, everyone must pay attention when using a water quality detector to detect alkali ore, acidic sediments, and liquids containing heavy metals. These liquids will damage the PH electrode. Therefore, the PH electrode should be cleaned in time after the test is completed. If you want to detect multiple liquids at the same time, make sure that the PH electrode is as special as possible. Avoid mutual interference between test liquids.


For users of water quality testers, only parts such as PH electrodes can be carefully maintained in daily life in order to extend its service life.


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