First, the choice of installation location is crucial. The electromagnetic flow meter should be installed on a straight pipe section to avoid the influence of factors such as pipe bending and diameter reduction on the flow state of the fluid. Specifically, the length of the upstream pipe section of the sensor is preferably 10 times the pipe diameter (10D), and the length of the downstream straight pipe section is 5D. If the on-site installation distance is not enough, at least the upstream 5D and downstream 3D straight pipe section length should be guaranteed. This ensures that the flow state of the fluid at the sensor is stable, thereby improving the measurement accuracy.
Secondly, the installation direction of the electromagnetic flow meter needs to be consistent with the fluid flow direction, and ensure that the axis of the measuring electrode is in a horizontal state. This prevents bubbles from adhering to the electrode and causing measurement errors. At the same time, the sensor should be installed in a position where the pipe is always full of liquid to prevent measurement errors caused by the absence of liquid in the pipe.
In addition, during the installation process, it is also necessary to avoid magnetic field interference. The working principle of the electromagnetic flowmeter is based on Faraday's law of electromagnetic induction, so it should be kept away from power sources such as motors and transformers that are prone to electromagnetic interference. In order to ensure measurement accuracy, reliable grounding connection is also required during installation.
Finally, the installation environment of the electromagnetic flowmeter also needs attention. It should be avoided to install it in places with large temperature changes or high temperature radiation of the equipment, as well as in environments containing corrosive gases. At the same time, it is also necessary to avoid installation in places with strong vibration sources and strong magnetic fields to ensure measurement stability and service life.
