Differences and relations among acidity meter, pH meter and ion meter.
Acidity refers to the definition of the total amount of substances that can neutralize strong alkali in water: PH =-LG {h+} 1. The greater the value of acidity, the stronger the acidity of the solution. 2. No matter at any temperature, the neutral solution AG is always 0. In contrast, it is customary to assume that the pH of a neutral solution at 25 degrees Celsius is 7, and the pH of a neutral solution at other temperatures is not 7. In addition, the range of acidity AG is R, while the traditional range of pH is 0-14.
Acidimeter is a commonly used instrument and equipment, which is mainly used to accurately measure the pH value of liquid medium. With the corresponding ion selective electrode, it can also measure the potential MV value of ion electrode, which is widely used in industry, agriculture, scientific research, environmental protection and other fields. Acidimeter is an instrument for measuring the pH value of solution. The main body of the acidity meter is a precision potentiometer. When measuring, the composite electrode is inserted into the measured solution, and different electromotive forces are generated due to different acidity (hydrogen ion concentration) of the measured solution, which is amplified by a DC amplifier, and finally the pH value of the measured solution is indicated by a reading indicator (voltmeter). The ph meter can be used in the range of 0 ~ 14.
There are many kinds of acidity meters, such as desktop, portable and table type, and there are two kinds of reading indicators: digital and pointer.
PH meter is a commonly used instrument and equipment, which is mainly used to accurately measure the pH value of liquid medium. With the corresponding ion selective electrode, it can also measure the potential MV value of ion electrode, which is widely used in industry, agriculture, scientific research, environmental protection and other fields.
Classification of PH meter:
According to the needs of production and life, people have scientifically researched and produced many types of pH values.
Meter: according to the measurement accuracy, it can be divided into 0.2, 0.1, 0.01 or higher accuracy.
According to the volume of the instrument, there are pen (mini), portable, desktop and online continuous monitoring and measurement. According to the requirements of use: pen-type (mini-type) and portable PH meter are generally brought to the site by inspectors for testing. Choosing the accuracy level of PH meter depends on the accuracy required by users.
