Yokogawa AXF electromagnetic flowmeter measuring principle and usage characteristics

Case introduction

Yokogawa AXF electromagnetic flowmeter measurement principle is based on Faraday's law of electromagnetic induction, split electromagnetic flowmeter consists of a sensor and a converter, the sensor is installed in the measurement pipe, the converter is installed within 30 metres from the sensor or 100 metres from the occasion, the two are connected by a shielded cable. Yokogawa AXF electromagnetic flowmeter sensor main components are: measuring tube, electrodes, excitation coil, core and yoke shell, mainly used to measure the volume flow of electrically conductive liquids and slurries in closed pipelines. Such as water, sewage, slurry, pulp, a variety of acids, alkalis, salt solutions, food slurry, etc., widely used in petroleum, chemical, metallurgical, textile, food, pharmaceutical, papermaking and other industries, as well as environmental protection, municipal management, water conservancy construction and other areas of the field of measurement of high temperatures, high humidity, inconvenient to observe the environment. Yokogawa AXF electromagnetic flowmeter measurement principle is Faraday's law of electromagnetic induction, the main components of the sensor are: measuring tube, electrode, excitation coil, core and yoke shell, is mainly used to measure the volume flow of conductive liquids and slurries in closed pipelines, including acids, alkalis, salts and other highly corrosive liquids. Yokogawa AXF electromagnetic flowmeter is widely used in petrochemical, iron and steel metallurgy, water supply and drainage, water irrigation, water treatment, environmental protection sewage total control, papermaking, medicine, food and other industrial and agricultural sectors of the production process flow measurement and control; for the total amount of electrically conductive liquids measurement. Yokogawa AXF electromagnetic flowmeter programmable frequency low-frequency rectangular wave excitation, improve the stability of flow measurement, low power loss; 16-bit embedded microprocessor, fast computing speed, high precision; full digital processing, strong anti-interference ability, reliable measurement, high precision, flow measurement range up to 150:1; full Chinese character menu operation, easy to use, simple to operate, easy to learn and easy to understand; high definition Backlight LCD display; with bidirectional flow measurement, bidirectional total accumulation function, current, frequency with bidirectional output function. Yokogawa AXF electromagnetic flowmeter has three accumulators inside to display the forward cumulative amount, reverse cumulative amount and the difference cumulative amount; with RS485 or RS232 digital communication signal output, conductivity measurement function, you can determine whether the sensor empty pipe; constant current excitation current range, can be used in conjunction with different companies, different types of electromagnetic flow sensors; in the case of the main line is a vertical pipeline, the requirements of the water flow is from bottom to top, as far as possible. The water flow is bottom-up, try not to top-down. The latter is likely to cause flow fluctuations are relatively large. Installation in addition to the full pipe, this point is also very important, followed by the distance between the front and rear straight pipe. As the Yokogawa AXF electromagnetic flowmeter measuring is a weak potential, need to exclude all external interference in order to accurately measure, and thus good grounding is to ensure that the electromagnetic flowmeter is a necessary condition for stable operation. Usually, grounding is achieved through the grounding ring or the reference electrode inside the sensor and the grounding connection of the piping system.