Since the intelligent electromagnetic flowmeter uses the principle of Ferrari electromagnetic induction , in the correct selection and installation according to the nature of the medium, the general failure rate is very low, but it cannot avoid some operational errors. damage. Below we give some solutions to some common faults. 1, no display, no signal output Fault analysis: 1) Check if the power supply is connected or the power circuit is faulty. 2) Check if the output signal line is connected or the wiring is loose; 3), the flowmeter, measuring pipeline, measuring medium grounding is not reliable; 4) The measuring medium is not completely filled with the pipeline; 5), the surface of the electrode has oxides or attachments, cleaning the electrode; 6), measurement circuit failure 2, the LCD display is not clear, the output shakes Fault analysis: 1) Adjust the potentiometer '1w3' to increase the contrast clockwise; 2) The fluid itself is passive or pulsating; 3) The pipe is not filled with liquid or contains bubbles in the liquid; 4) External electromagnetic interference; 5), the physical properties of the liquid (conductivity is uneven or contains impurities) 6) The electrode is contaminated or corroded; 7), the flowmeter, measuring pipeline, measuring medium grounding is not reliable; 3, zero instability Failure analysis; 1), the pipeline is not filled with liquid or the liquid contains bubbles; 2), there is a tiny flow in the pipeline 3) The grounding is imperfect and the external electromagnetic clutter interferes; 4), the physical properties of the liquid (inconsistent conductivity or contain impurities); 5), the signal loop insulation decreases; 4. 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, and the tube or liquid contains bubbles; 3) The length of the straight pipe section on the upstream and downstream of the sensor is insufficient; 4) The pipe to be measured contains other branches that affect the measurement; 5), the signal cable is not processed or the cable insulation is lowered during use; 5, the output signal super full value Fault analysis: 1) Check whether there is liquid communication between the sensor electrodes; 2) Check if the cable is disconnected or the wiring is incorrect; 3), the rear position meter is not electrically isolated or set incorrectly
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