The current use of electromagnetic flowmeter has been very extensive, coupled with scientific and technological progress, the continuous improvement of the processing level, the function of the electromagnetic flowmeter is more powerful, the accuracy is also improved than before, how to judge whether an electromagnetic flowmeter is good or bad.There are many methods and different means. In the detection stage of the workshop, the magnetic coil resistance value and the contact resistance value of the electrode and the liquid are generally measured by the multimeter to judge the performance of the instrument.

The advantages of the electromagnetic flowmeter are embodied in the following points, because the electromagnetic flowmeter is a volume flow measurement instrument, in the instrument's measurement process, it is not affected by the temperature of the measurement medium.Physical (within limits) effects of viscosity, density, and conductivity.Therefore, after water calibration, the meter can be used to measure the flow of other conductive liquids, and no additional means to modify.Of electromagnetic flow meter transducer has simple structure, no moving parts, no obstacles to fluid flow throttling parts, so when the fluid through does not cause any additional pressure loss, at the same time it won't cause such as wear and tear, the problem such as congestion, especially suitable for measuring pulp with solid particles, such as sewage liquid-solid two-phase fluid, as well as a variety of viscosity larger slurry, etc.Similarly, since it has no moving parts in structure, it can be used for the measurement of all kinds of corrosive media by attaching a corrosion-resistant insulating lining and selecting corrosion-resistant materials to make electrodes.