The buried copper sulfate reference electrode is mainly in the pre-packaged form, which is composed of electrode and filling material. The filling material is mainly composed of gypsum powder, sodium sulfate and bentonite, which can overcome the problem of liquid leakage easily.
Most of the electrode crystals are chemically pure and above grade, and the configuration water is distilled water; The e electrode used in summer can be properly heated to more than 40°; Electrode shell and copper bar can not have dirt, rust spot; Permeation membrane should be permeated evenly and sealed well; The sealing should be well sealed when the production is finished.
When using the reference electrode, attention should be paid to: ① if the copper sulfate crystal in the solution is dissolved or dried up because of high temperature and other factors, the liquid should be replaced in time to ensure that the solution can always maintain saturation; ② The permeable film should be permeable without leakage, otherwise it should be replaced; ③ The permeable film should be in good contact with the soil, and water should be added to wet the dry and dry areas.
