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How to correctly wire an electromagnetic flowmeter?
Date: 2017-05-25Read: 12

How to correctly wire an electromagnetic flowmeter?

Wiring of integrated electromagnetic flowmeter:
① The excitation cable can use YZ medium-sized rubber sheathed cable, which has the same length as the signal cable
② Signal cables and other power cables must be strictly separated and cannot be laid in the same pipe, parallel, or twisted together. They should be separately threaded in steel pipes.

③ The signal cable and excitation cable should be kept as short as possible, and excess cables should not be coiled together. The excess cables should be cut off and re welded. When the cables enter the sensor electrical interface, they should be made U-shaped at the port to prevent rainwater from penetrating into the sensor.

④ The connection between the excitation cable and the converter of the split type electromagnetic flowmeter is completed with wiring, and the converter and external connection are the same as the integrated electromagnetic flowmeter.

Wiring of split type electromagnetic flowmeter:
The measurement accuracy is not affected by changes in fluid density, viscosity, temperature, pressure, and conductivity. The sensor's induced voltage signal is linearly related to the average flow rate, resulting in high measurement accuracy.
There is no obstruction in the measuring pipeline, so there is no additional pressure loss; There are no movable parts inside the measuring pipeline, so the sensor has an extremely long lifespan.
Due to the fact that the induced voltage signal is formed in the entire space filled with a magnetic field and is the average value on the surface of the pipeline, the straight pipe section required for the sensor is relatively short, with a length of 5 times the diameter of the pipeline.
The sensor part only has the inner lining and electrodes in contact with the measured liquid. As long as the electrode and inner lining materials are selected reasonably, they can be corrosion-resistant and wear-resistant.
The LDE converter adopts microcontroller (MCU) and surface mount technology (SMT), which have reliable performance, high accuracy, low power consumption, stable zero point, and convenient parameter setting. Click on the Chinese display LCD to show cumulative flow, instantaneous flow, flow rate, flow percentage, etc.
A bidirectional measurement system that can measure both forward and reverse flow rates. Using special production processes and materials to ensure the stability of product performance over a long period of time.