The difference between an acidity meter and a pH meter
1. The difference between acidity meter and ph meter
The acidity meter is the same as the pH meter. It is a high-precision industrial online automatic and continuous detection of acidity and alkalinity.
Acidity meter, referred to as pH meter, consists of two parts: electrode and electric meter. It is a commonly used instrument and equipment. It consists of three parts: reference electrode, glass electrode and ammeter. Widely used in industry, agriculture, scientific research, environmental protection and other fields.
Acidity meter is a commonly used instrument and equipment, also known as PH meter. It is mainly used to precisely measure the pH value of the liquid medium. It can also measure the MV value of the ion electrode potential with the corresponding ion selective electrode. The BPH-200A series pH meter is widely used in industry, agriculture, scientific research, environmental protection and other fields. The instrument is also an essential inspection equipment for QS and HACCP certification in food factories and drinking water factories.
A pH meter is an instrument for measuring the pH of a solution. The body of the pH meter is a precision potentiometer. When measuring, insert the compound electrode into the solution to be tested, and different electromotive forces will be generated due to the different acidity (hydrogen ion concentration) of the solution to be tested, which will be amplified by a DC amplifier, and finally the reading indicator (voltmeter) will point out the measured solution pH value. The pH meter can be used within the range of 0-14pH.
3. Precautions for the use of ph meter
1. Under normal circumstances, when the instrument is in continuous use, it needs to be calibrated once a day; generally, the instrument does not need to be calibrated within 24 hours.
2. Before use, pull down the rubber cover on the upper end of the electrode to expose the small hole on the upper end.
3. The calibration buffer solution generally uses a pH=6.86 solution for the first time, and a buffer solution close to the pH value of the measured solution for the second time. If the measured solution is acidic, the buffer should be pH=4.00; When the solution is alkaline, choose a buffer with pH = 9.18.
4. When measuring, the leading wire of the electrode should be kept still, otherwise it will cause unstable measurement. 5. Do not soak the electrode in distilled water.
6. Keep the electrode bulb moist. If it is found to be dry, it should be soaked in 3mol/L potassium chloride solution or slightly acidic solution for several hours before use to reduce the asymmetric potential of the electrode.
