PH meter principle of knowledge - pH meter Compendium - Changzhou hundred Cheng Technology Co., Ltd. All PH meter acidity _ _ _ dissolved oxygen meter conductivity meter factory direct price after the above approach to the electrodes must be washed with pure water, then soaked in 3.3 MKCL electrode soaking solution for 12 hours. Self-cleaning: When jet, PH meter need to be able to maintain control of the output value before washing in the same, that is, at this time locking the meter output during the cleaning instrument output remains unchanged until the cleaning is completed after the PH value of the solution stable PH meter PH meter manufacturers, PH meter further detection output. Fifth, how to deal with the aging of the electrodes, the electrodes to choose the right type, easy to use. 1) how to deal with the aging of the electrode: PH meter glass electrode layer structure with progressive aging changes. Old electrode response is slow, the membrane resistance is high, the slope of the low. Hydrofluoric acid etching away the outer layer, can often improve electrode performance. If this method to periodically clear the inner and outer layer, the electrode life is almost unlimited. Solution: electrode activation - the aging electrodes may be immersed in a mixed solution of 1M acetic acid and 1M potassium chloride (1: 1), activation 10min after removing clean. Aging without serious electrodes can be soaked in distilled water or 0.1N dilute hydrochloric acid solution activated 24h. A) PH meter price of a portable pen several price 300-900,2 laboratory PH meter PH meter prices 1500-3000, Industrial Online PH meter price of domestically produced three or four thousand, two imported 8000-10000) PH pH meter gauge principle with potential measurement is to measure the pH of the most sophisticated methods. pH meter consists of three components: (1) a reference electrode; (2) a glass electrode, whose potential is dependent on the pH of the surrounding solution; (3) a galvanometer, the galvanometer can be great in the resistance circuit measured small potential difference. As a result of the latest design and solid electrode circuit technology, and now the best pH can distinguish 0.005pH units. The basic function of the reference electrode is to maintain a constant potential, as a measure of deviation from the control of various potentials. Silver - Silver Oxide pH electrode is currently the most commonly used reference electrode. Functional glass electrode is to create a solution to respond to changes in hydrogen ion activity by measuring the potential difference. The pH-sensitive electrode and a reference electrode in the same solution, on the formation of a galvanic cell, the potential of the battery and the glass electrode and a reference electrode potential than algebra. E cell = E + E glass reference, if the temperature is constant PH meter PH meter structure, the cell potential versus pH test solution changes, and measuring the potential acidity produced in the cell is difficult, because of the electromotive force very small, and the impedance of the circuit is very large (1-100MΩ); therefore, the signal must be amplified, it is sufficient to push the standard Millivoltmeter or milliammeter. Galvanometer original potential of the battery function is enlarged several times, the amplified signal is passed through the meter displays the meter PH PH meter where the good, the degree of deflection of the meter pointer indicates a signal intensity which pushes, in order to require the use of, pH meter The dial is engraved with the corresponding pH value; and digital pH meter directly show the pH value of the professional digital PH meter PH meter, Baicheng Technology (certified), PH meter offered by Changzhou Best Technology Limited. Changzhou one hundred Technology Limited (www.czbckj.com) Jiangsu Changzhou, chemical instrumentation leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. In one hundred as a technological leader with the staff warmly welcome all inquiries negotiations to create one hundred to a better future technology.