Do not simply look at the high comparative indicators in a variety of model selection, intelligent turbine flow meter, to read the detailed instructions factory sample or do a comprehensive analysis. Functional differences in the market emf is also great, turbine flow meters, just a simple unidirectional flow measurement, the analog signal output only drive posterior instrumentation; multi-functional measuring instrument has a two-way flow, range switching, the lower limit flow alarm, air traffic control and power off the alarm, low-cut, and the total calculated flow display, automatic check and fault diagnosis, and PC communication and movement configuration and so on. Some models meter serial digital communication Optional variety of communication interfaces and ASIC (asic), to connect the hart protocol system, proftbus, modbus, config, ff Fieldbus. Magnetic system: its role is to generate DC or AC magnetic field uniform. DC magnetic circuit with the permanent magnet to achieve the advantage of a relatively simple structure, the price of the turbine flow meter, an AC magnetic field interference is small, but it is easy to make by measuring the polarization of the liquid electrolyte within the conduit, the positive electrode being surrounded by negative ions, the negative electrode is surrounded by positive ions, namely the electrode polarization, high-precision turbine flowmeter and lead to increased resistance between the two electrodes, thereby seriously affecting the normal operation of the instrument. When large diameter pipes, the permanent magnet is correspondingly large, cumbersome and uneconomical, so electromagnetic flowmeters generally use an alternating magnetic field, and is 50HZ power frequency excitations. Turbine flow meters, power measurement since, high-precision turbine flowmeter force measured by the Shanghai Automation Instrumentation Co., Ltd. "Industrial thermocouple, RTD, transmitters, flowmeters, intelligent instruments, actuators' preferred measure of the Shanghai Automation Instrumentation Co., Ltd. (www.licesh.com), the company is located: Zhabei District, Shanghai Luochuan Road 638 No, for many years, since the force measuring instrument to provide customers with the best quality service, contact: Hua powder. Welcome to the new and old customers call, letter, visit the guide, business negotiations. Force measurement since the instrument expect to be your long-term partner!