Brief introduction of acid meter in Shanghai Bilang. Everyone knows that the pHS-3C acidity meter widely used in the laboratory is a precision digital display acidity meter. The measuring range is wide and the repeat error is small. PHS-3C pH meter consists of a host and a composite electrode. Using the standard buffer solution of known pH as the benchmark, compare the electromotive force of the battery composed of the standard buffer solution, so as to obtain the pH value of the test solution. So the pH meter is also called pH meter I. Overview An acidity meter is an electrochemical sensor that selectively responds to the activity of hydrogen ions in a solution. Theoretically, the acidity of the solution can be measured as follows: the working battery is composed of the reference electrode, indicator electrode and solution, and the electromotive force of the battery is measured. Using the standard buffer solution of known pH as the benchmark, compare the electromotive force of the battery composed of the standard buffer solution, so as to obtain the pH value of the test solution. So the pH meter is also called pH meter 2. Composition The acidity meter consists of electrodes and an electromotive force measurement device. The electrode is used to form a working battery with the test solution; the electromotive force measurement part responds to the electromotive force of the battery and shows the pH of the solution. Most acidity meters also have a millivolt range, which can directly measure the electrode potential. If equipped with a suitable ion-selective electrode, the activity (concentration) of an ion in the solution can also be measured. BILON brand, dedicated service
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