Post-maintenance of intelligent electromagnetic flow meter

Abstract: The post-maintenance information of the intelligent electromagnetic flow meter is provided by the excellent flow meter and flow meter production 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 operational mistakes cannot be avoided. damage. More flowmeter manufacturers choose models and price quotations. You are welcome to inquire. The following are the details of the post-maintenance article of the intelligent electromagnetic flowmeter. 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 operational mistakes cannot be avoided. damage. Below we give some solutions to some common faults 1. No display, no signal output fault analysis: 1) Check whether the power supply is connected or the power circuit is faulty 2) Check whether the output signal line is connected or wired There is looseness; 3), the grounding of the flow meter, measuring pipe, and measuring medium is unreliable; 4), the measuring medium is not completely filled with the pipe; 5), there are oxides or attachments on the surface of the electrode, clean the electrode; 6), the measuring 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 actual value does not match the 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), all the The measuring tube contains other branch pipes that affect the measurement; 5), the signal cable is not handled well or the cable insulation is lowered during use; 5. The output signal exceeds the full scale value fault analysis: 1), check whether there is liquid connection between the sensor electrodes; 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. 'Post-maintenance of intelligent electromagnetic flow meter'

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