18 dbi omni directional antenna.Selection of types of flow meters

　　The selection of flow meters should start from the actual situation of operating conditions, as well as the properties and flow conditions of the measured fluid, and comprehensively consider the safety, accuracy, and economy of measurement. As is well known, flow meters are one of the important instruments in industrial measurement. With the development of industrial production, the requirements for the accuracy and range of flow measurement are becoming higher and higher. Flow measurement technology is changing rapidly. In order to adapt to various applications and occasions, various types of flow meters have emerged one after another. At present, there are over 100 types of flow meters that have been put into use, but the commonly used flow meters in industry mainly include electromagnetic flow meters, vortex flow meters, turbine flow meters, mass flow meters, target flow meters, ultrasonic flow meters, orifice flow meters, differential pressure flow meters, rotor flow meters, etc.

　　The safety and reliability of flow measurement first depend on the reliable measurement method, that is, the sampling device will not cause accidents due to mechanical strength or electrical circuit failures during operation; The second is that the measuring instruments will not affect the safety of the production system, whether in normal production or failure situations. On the basis of ensuring the safe operation of instruments, strive to improve their accuracy and energy efficiency. Therefore, it is not only necessary to choose display instruments that meet the accuracy requirements, but also to choose a reasonable measurement method based on the characteristics of the measured medium.

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