Testing principle and purchasing skills of insulating oil acid value tester
The detection of the acid value of insulating oil is a routine inspection item for power systems and oil-filled electrical equipment in industrial and mining enterprises.
The oil acid value tester adopts the principle of neutralization method. Under normal temperature, the microcomputer control automatically completes liquid addition, stirring, titration and end point judgment. The touch-type LCD screen is used to select all working parameters. The man-machine dialogue interface is simple and friendly, and the operation is convenient. The average analysis period of oil samples is about 2 minutes. Can display up to 35 groups of measurement results, and can print out a number of parameters related to the measurement.
The following points should be paid attention to when purchasing "Insulation Oil Acid Value Tester":
- The reagent bottle contains the Extract neutralizer. The extract is stored in glass containers to ensure no plastic additive contamination.
- Microcomputer control automatically completes liquid addition, stirring, titration and end point judgment.
- The level of the oil acid value tester and the accuracy of the instrument are two different concepts, and the level of the instrument is not completely consistent with its accuracy
The accuracy of the oil acid value tester is the comprehensive error of the electric meter and the electrode matching test standard solution, which is not only related to the electric meter, but also related to the glass electrode and the reference electrode. Starting from the actual use requirements, the division value of the electric meter is 0.1 ~ 0.001pH. If necessary, according to the current scientific and technological level, a more precise electric meter can be produced. However, due to structural and manufacturing reasons, the performance of commonly used electrodes cannot be perfect.
Post time: Feb-07-2022