Installation and routine maintenance of pH electrodes

In general, under normal conditions (such as tap water), the service life of the pH electrode is 8-12 months, and some are longer. If it is in sewage conditions, the service life is generally 3-8 months depending on the water quality. Notes on electrode wires: 1. The electrode wires are dedicated cables and cannot be extended with other cables. 2. If you strip the wire by yourself, the black skin on the transparent tube must be stripped to the bifurcation. 3. The electrode extension line and the electrode self-contained line are connected through the junction box on the sheath tube, and cannot be simply connected. Precautions for electrode installation: Generally, when the pool is installed, it will be equipped with a sheath (1-meter tube). When the electrode is screwed into the tube, attention should be paid to the tightness (once the 1-meter tube enters water, the electrode will be damaged). Wrap a few circles of raw material on the electrode thread and use pH electrode maintenance precautions: 1. The pH electrode is recommended to be calibrated once every two weeks. 2. The pH electrode should not be left in the air for a long time. on the electrode to ensure that the electrode tip is wet. If it has been empty for a long time, it can be soaked in 3 molar saturated potassium chloride solution for more than 6 hours (effective for most electrodes, not guaranteed to be 100% effective), and then recalibrated. Some electrodes can be restored to use. 3. It is recommended to clean the pH electrode once every 2 weeks (if the scaling is rapid, it should be cleaned once a week). For acid scaling, it can be cleaned with 5% sodium hydroxide solution first, and then rinsed with water; for alkaline structure, it can be cleaned first. Wash with dilute hydrochloric acid, then rinse with water.