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Fault symptoms and solutions for vortex flowmeters: Fault symptoms: No indication or output signal after power is applied. Cause of failure: 1) The flow integrator does not have a 24VDC output ； 2) There is an error in the wiring or a broken connection ； 3) Internal wire breakage in the sensor or damaged amplifier ； 4) There is no flow or the flow rate is too low in the pipeline. Remedial measures: 1) Check whether the integrator’s output is normal ； 2) Reconnect the wires ； 3) Repair or replace ； 4) Reduce the inner diameter of the pipe at the instrument installation location. Fault symptom: Signal is output when there is no traffic. Cause of failure: 1) Poor shielding or grounding of the vortex flowmeter wires, resulting in 50Hz interference ； 2) There are strong electrical equipment or power lines in the vicinity ； 3) The pipeline experiences severe vibration. Remedial measures: 1) Strengthen shielding or grounding to eliminate 50Hz interference ； 2) Keep the instruments or signal wires away from sources of interference ； 3) Adopt vibration reduction, enhance filtering, or reduce sensitivity. Fault symptom: The flow rate indication fluctuates greatly. Cause of failure: 1) Influence of pipeline vibration ； 2) The sensitivity is set too high ； 3) There are attachments on the sensor body ； 4) Damage to the piezoelectric crystal ； 5) Large fluctuations in the process. Countermeasures: 1) Strengthen filtering or vibration reduction ； 2) Reduce sensitivity ； 3) Clean the sensor body ； 4) Replace ； 5) Install the instrument on process pipelines with minimal flow fluctuations. Fault symptom: Large indication error. Cause of failure: 1) Insufficient length of the upstream straight pipe section ； 2) The vortex flowmeter constant is set incorrectly ； 3) The power supply voltage and load resistance do not meet the requirements ； 4) Severe fouling of the body ； 5) The amplifier parameters have changed ； 6) Cavitation phenomenon occurs. Take measures: 1) Change the installation location, add a rectifier, or reduce the accuracy requirement; the straight pipe section upstream should be greater than 5D ； 2) Reset parameters ； 3) Provide the power supply voltage as required by the instrument ； 4) Cleaning the occurrence body ； 5) Readjust ； 6) Changing the installation location increases population pressure. For more information, please visit the company’s official website at http://www.yb1518.com/. Please retain this link when reproducing the content! http://www.yb1518.com/UploadFiles/20175239314754.jpg