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This article mainly discusses some parameter adjustments that need to be made when vortex flowmeters encounter faults during operation. Under normal circumstances, vortex flowmeters are already calibrated at the time of manufacture, and they can be installed and used directly unless there are any special circumstances. 1. Calibration of the vortex flow meter: When the pipeline vibrates and there is no fluid flow within it, the sensor still receives signals due to these vibrations; as a result, the instantaneous flow rate begins to be measured. Such signals are considered abnormal, and in such cases, the operator needs to adjust the sensitivity of the vortex flow meter accordingly ； 2. Adjustment of the amplifier gain in vortex flowmeter systems: This adjustment is necessary when the sensor of the vortex flowmeter needs to be replaced. All that is required is to adjust the appropriate gain level using the AMP potentiometer on the amplifier board, and then observe the waveform of the vortex flowmeter using an oscilloscope. Generally, at the minimum flow rate, the peak value of the waveform lies between 100 mV and 100 mV-P ； 3. Adjustment of the trigger level for vortex flow meters: Increasing the trigger level of a vortex flow meter reduces its sensitivity. This adjustment can help address the issue related to the calibration of vortex flow meters, that is, the adjustment of their sensitivity ； For Chengfeng vortex flowmeters, please contact us at 18362232387 for cooperation