A pen-type pH meter is a simple instrument used to measure the acidity and alkalinity of a solution, also known as a pocket digital pen-type pH meter (see Figure 1). The method of using the pen-type pH is very simple, just take off the pen cover, turn the switch on the pH meter to the "ON" position, then insert its lower end into the test solution, and write down the numbers on the LCD screen. If you need to measure other solutions, you need to rinse with distilled water two to three times. After the experiment is finished, it should be cleaned, and the switch should be turned to the "OFF" position before storage.
Introduction to the use, advantages and working principle of pen pHmeter
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Author:
蔡碧霞
Source:
笔式PH计的介绍
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