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What should we pay attention to when using a conductivity meter?
The conductivity meter with quality assurance is a special instrument that can be widely used in many industries, and the electrode is a very important part of the conductivity meter. In order to ensure the normal operation of this instrument, it is necessary to pay attention to the correct use and maintenance methods of the conductivity meter in daily use. Let me introduce it to you.
There are three points to note in total, click constant, cleaning matters, and storage. The first is to pay attention to the calibration of the electrode constant: before using this instrument for measurement, it is necessary to recalibrate the electrode constant of the conductivity instrument. At the same time, the standing setting of the electrode should be standardized regularly. When the error is found to be relatively large, the electrode should be replaced in time. If a professionally supplied conductivity meter is used to measure high-purity water, it is also necessary to select the correct electrode constant and adopt a flowing and sealed measurement method. 2. Pay attention to flushing before measurement and conversion after measurement: In order to ensure the measurement accuracy of the conductivity meter, the electrode should be rinsed with deionized water before use, and then rinsed with the sample to be tested before measurement. However, the value displayed after the conductivity instrument is measured still needs to be converted or compensated. 3. Pay attention to the storage and cleaning of the electrode: If the conductivity meter is not used for a long time, if it is a platinum electrode, it needs to be stored in a dry place and placed in distilled water for several hours before use. The frequently used platinum-plated black electrode can be stored in distilled water. In addition, if you find some dirt on the conductivity meter electrode after use, you can use warm water containing detergent to clean the organic dirt on the electrode, or you can use alcohol to clean it, but if it is a precipitate containing calcium and magnesium, you can also use citric acid to clean it. Be sure to use a gentle way to clean it.
When cleaning with detergent, you need to pay special attention and use the corresponding cleaning agent. In general, you need to pay attention to the above aspects when using the conductivity meter. The bright glass electrode can be mechanically cleaned with a soft brush, but be careful to use hard objects to remove stains on the surface of the electrode, otherwise it may cause scratches on the surface of the conductivity meter electrode.
