1. The basic principle and working principle of orp measuring instrument telephone
 The orp measuring instrument telephone is an instrument used to measure the oxidation-reduction potential (ORP) in solution. The basic principle is to use the electrode to react with the redox body in the measured solution to generate current, and deduce the ORP value of the solution according to the size of the measured current.
 The orp measuring instrument telephone usually consists of a reference electrode and a working electrode. The reference electrode is used to provide a stable reference potential, and the working electrode contacts the measured solution. The ORP value of the solution is determined by measuring the potential difference between the working electrode and the reference electrode.
 The working principle of orp measuring instrument telephone includes two aspects: one is to keep the potential of the reference electrode at a stable value; the other is to measure the potential difference between the working electrode and the reference electrode and convert it into the ORP value.
 2. Application of orp measuring instrument telephone
 (1) Environmental monitoring: orp measuring instrument telephone is widely used in the field of environmental monitoring to measure ORP values in the atmosphere, water and soil. By monitoring the change of ORP value, environmental pollution problems can be found and prevented in time.
 (2) Water quality monitoring: orp measuring instrument telephone is widely used in the field of water quality monitoring and treatment. By measuring the ORP value in the water body, the redox status in the water body can be evaluated, so as to judge the quality of water quality and take corresponding treatment measures.
 (3) Biopharmaceutics: the application of orp measuring instrument telephone in biopharmaceutics is becoming more and more important. It can be used to monitor the ORP value in the fermentation process, control the growth and reproduction of bacteria and fungi, and thus improve the production and quality of biopharmaceuticals.
 (4) Food processing: orp measuring instrument telephone is also widely used in the food processing industry. By measuring the ORP value in food, we can judge the freshness and hygiene of food, and help processing enterprises improve product quality and safety.
 3. Advantages and disadvantages of orp measuring instrument telephone
 (1) Advantages: orp measuring instrument telephone has the advantages of high measurement accuracy, fast response speed, convenient use, etc. The measurement results are accurate and reliable, and can meet the requirements of ORP values in different fields.
 (2) Disadvantages: There are also some shortcomings in the use of the orp measuring instrument phone, such as being vulnerable to electrode pollution and requiring regular calibration. In addition, the high price of the orp meter phone limits its application in some fields.
 4. Summary
 As an important analysis and testing tool, orp meter telephone plays an irreplaceable role in modern industry. It can be widely used in environmental monitoring, water quality monitoring, biopharmaceuticals, food processing and other fields, providing important technical support for various industries. Although the orp meter telephone has some shortcomings, it has obvious advantages and broad prospects for development. It is believed that with the progress of science and technology and the expansion of application fields, the orp measuring instrument telephone will be applied and developed in more fields.