Repair and maintenance of electromagnetic flow meter after use

Abstract: The repair and maintenance information of the electromagnetic flowmeter in the later period of use is provided by the excellent flowmeter and flowmeter manufacturers and quotation manufacturers. Since the intelligent electromagnetic flowmeter uses the Ferrari electromagnetic induction principle, the failure rate is generally very low when the type and installation are scientifically selected and installed according to the nature of the medium, but some errors in use and operation cannot be avoided. . More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the repair and maintenance articles of electromagnetic flowmeters in the later period of use. Since the intelligent electromagnetic flowmeter uses the Ferrari electromagnetic induction principle, the failure rate is generally very low when the type and installation are scientifically selected and installed according to the nature of the medium, but some errors in use and operation cannot be avoided. damage. Below we summarize our work experience, and give some solutions to some common faults of intelligent electromagnetic flowmeters in daily use. Or the power supply circuit is faulty 2), check whether the output signal line is well connected or the wiring is loose; 3), the flow meter, measuring pipe, and measuring medium are not reliably grounded; 4), the measuring medium is not completely filled with the pipe; 5), the electrode There are oxides or attachments on the surface, clean the electrodes; 6), the measurement circuit is faulty 2, the liquid crystal display is not clear, the output shakes fault analysis: 1), adjust the potentiometer‘1w3’, increase the contrast clockwise; 2), the fluid itself is passive or pulsating; 3), the pipe is not filled with liquid or the liquid contains bubbles; 4), the external electromagnetic interference; 5), the reason of the physical properties of the liquid (uneven conductivity or Contains impurities) 6), the electrode is polluted or corroded; 7), the grounding of the flow meter, measuring pipe, and measuring medium is unreliable; 3. The zero point instability fault analysis; 1), the pipe is not filled with liquid or the liquid contains air bubbles; 2) , There is a tiny flow in the pipeline 3), the grounding is not perfect, and the external electromagnetic clutter interferes; 4), the physical properties of the liquid (uneven conductivity or containing impurities); 5), the insulation of the signal circuit is reduced; The measured value does not match the actual value. Fault analysis: 1), the sensor setting value is incorrect; 2), the sensor installation position is incorrect, the pipe is not full or the liquid contains air bubbles; 3), the length of the upstream and downstream straight pipe sections of the sensor is not enough; 4 ), the measured pipe contains other branch pipes that affect the measurement; 5), the signal cable has not been processed or the cable insulation has declined during use; 5. The output signal exceeds the full value fault analysis: 1), detect whether there is liquid between the sensor electrodes Unicom; 2), check whether the cable is disconnected or the wiring is wrong; 3), the rear instrument is not electrically isolated or the setting is wrong The above is the whole content of this article. You are welcome to inquire about the flowmeter selection and quotation of our factory. 'Repair and Maintenance of Electromagnetic Flow Meters in the Later Period of Use'

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