Which aspects determine the quality of industrial pH meters?
The accuracy of industrial pH meters: Without accuracy, industrial pH meters have no practical value. The method of judgment is to use high-precision industrial pH meters or high-precision standard solutions for calibration.
Stability of industrial pH meter: Unstable industrial pH meters are difficult to read and ensure accuracy. Stability is manifested in two aspects: first, the stability of a single industrial pH meter. The same industrial pH meter can be placed in a stable solution for a long time to observe whether the value changes and the magnitude of the change; On the other hand, the stability of multiple industrial pH meters can be improved by placing several calibrated industrial pH meters of the same model in the same stable solution to check if the readings are consistent and how much error there is. If the stability cannot be guaranteed between several industrial pH meters of the same model, it is difficult to ensure the accuracy and stability of each industrial pH meter.
Adjustment of common errors in industrial pH meters: Temperature is a significant factor causing errors in industrial pH meters, and the presence and sensitivity of temperature probes also affect the use of industrial pH meters.
Industrial pH meters are easy to operate and have a beautiful interface: users can easily judge this aspect. Some old industrial pH meters use analog switches, which makes calibration difficult. Small changes are not easy to detect and can easily cause fatal system errors. Considering cost and technological reasons, there are still many industrial pH meters that use LED digital tubes, but the display content is not rich enough. Of course, some manufacturers have made up for this disadvantage through certain means. The currently commonly used interface for convenient operation is usually an LCD display with keyboard style operation.
The quality of industrial pH meter electrodes: The performance of industrial pH meter electrodes directly affects some technical indicators of industrial pH meters. Even the most superior industrial pH meter is equipped with inferior pH electrodes, which is of no use.
