Precautions For Electromagnetic Flowmeter

1. Accuracy grade and function Select the accuracy grade of the instrument according to the measurement requirements and usage occasions to achieve economical results. For example, when it is used for trade settlement, product handover and energy measurement, you should choose a higher accuracy level, such as 1.0 level, 0.5 level, or higher level; for process control occasions, choose different accuracy levels according to the control requirements; some are only It is to detect the process flow without precise control and measurement. You can choose a slightly lower accuracy level, such as 1.5, 2.5, or even 4.0. At this time, you can choose a low-cost plug-in electromagnetic flowmeter.
2. Measuring medium flow velocity, instrument range and caliber When measuring general medium, the full-scale flow rate of the electromagnetic flowmeter can be selected within the range of 0.5-12m/s for measuring medium flow velocity, and the range is relatively wide. The selection of instrument specifications (diameter) is not necessarily the same as that of the process pipeline. It should be determined whether the measurement flow range is within the flow velocity range. That is, when the pipeline flow velocity is too low to meet the requirements of the flow instrument or the measurement accuracy cannot be guaranteed at this flow velocity It is necessary to reduce the caliber of the instrument to increase the flow rate in the pipe and obtain satisfactory measurement results.
3. Try to avoid ferromagnetic objects and equipment with strong electromagnetic field, so as not to affect the working magnetic field and flow signal of the sensor.
4. It should be installed in a dry and ventilated place as far as possible, avoiding the sun and rain, the ambient temperature should be -20～+60℃, and the relative humidity should be less than 85%.
5. There should be sufficient space around the flowmeter for easy inspection and maintenance.