An electromagnetic flowmeter is an instrument that applies the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field.
An electromagnetic flowmeter is an instrument that applies the principle of electromagnetic induction to measure the flow rate of conductive fluid based on the electromotive force induced when the conductive fluid passes through an external magnetic field.
It may be that when the pump is started, the liquid passes through the flow meter and cuts the magnetic lines, generating a flow signal. These liquids are eventually used in subsequent links, and their flow measurement values are valid and should be accumulated; When the pump stops, a small amount of liquid will flow back in the pipeline, cutting the magnetic lines in the opposite direction, and also generating a small signal. However, these liquids are not used in actual production, and the flow meter will still transmit the signal to the PLC for sampling and accumulation, thus causing larger errors.
Second, due to external vibration or large magnetic field interference, when there is no medium flow, external vibration and other signals act on the sensor, introducing an "erroneous flow" signal. When this signal is higher than the meter's measurement The next * will be accumulated by the flow meter.
Third, it is possible that a layer of insulation adheres to the surface of the electrode, is subject to external interference, or that the milliamp signal sent by the electrode has a zero-point drift during the amplification and conversion process, causing the signal to deviate from the normal value, thereby causing the signal to deviate from the normal value. causing errors.
Supmea Co., Ltd. is a company specializing in the production of electromagnetic flowmeters, turbine flowmeters, vortex flowmeters, magnetic flap level meters, thermocouples, thermal resistors, bimetal thermometers and various specifications. Pressure gauges, etc., as well as manufacturers of various non-standard flow meters, the company has first-class management level, modern professional production equipment, and advanced calibration devices.
Hangzhou Economic Development Area，Hangzhou 310018，China
