Electromagnetic flowmeters cannot be measured. Electromagnetic flowmeters are capable of measuring the future development and application of liquid, electronic and computer technologies. Part of the application range has expanded. In the past, orifice flowmeters have improved measurement accuracy in order to compensate for various errors. Abnormal conversion circuit, setting unexpected, abnormal part, in order to realize through computer terminal or air traffic control, over-limit alarm, self-diagnosis, remote communication, in order to change the attenuation change, adjust the zero range of electromagnetic flowmeter. In recent years, in order to adapt to various performances of fluid measurement, manufacturers have introduced various forms of electromagnetic flowmeters. Use multi-electrode electromagnetic flowmeter electromagnetic flowmeter and ceramic lining, such as electrodes, electromagnetic flowmeter.
Relevant instructions for electromagnetic flowmeter measurement: The electromagnetic flowmeter has far more opportunities to measure suspended solids or dirt than other flow meters, and the probability of failure caused by the inner wall adhesion layer is relatively high. If the conductivity of the adhesion layer is close to the conductivity of the liquid, the meter can still output signals normally, but only change the flow area, forming a hidden fault of measurement error; if it is a high conductivity adhesion layer, the electromotive force between the electrodes will be short-circuited; if it is an insulating adhesion layer , The electrode surface is insulated and disconnects the measuring circuit.
Electromagnetic flowmeter is such an instrument. It is greatly affected by objective factors and closely related to the surrounding environment. Any small factor in its operating environment may hinder its operation. Therefore, we should try our best to eliminate the influence of these objective factors. The following is a brief introduction. The main reason for the change in environmental conditions is the same as the fault environment in the commissioning period in the previous section, except that the interference source does not appear during the commissioning period but is intervened during the operation. For example, an electromagnetic flowmeter with grounding protection is not ideal. During the commissioning period, there is no factory disturbance source, and the instrument operates normally. However, during the operation period, a new interference source interferes with the normal operation of the instrument, and the output signal fluctuates greatly.
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