Vortex flowmeter is mainly used for the flow measurement of medium fluids in industrial pipelines, such as gas, liquid, steam and other media. It is characterized by low pressure loss, large measuring range, high accuracy, and almost no influence of parameters such as fluid density, pressure, temperature, and viscosity when measuring volume flow.
1. Trigger level adjustment Trigger level increase (sensitivity of pulse generation) will reduce the sensitivity of the flow. In the absence of any liquid flow in the pipeline, the occurrence of abnormal pulses due to pulsation flow due to pipeline vibration can be effectively handled by increasing the trigger level.
The trigger level can be adjusted by the TRG potentiometer on the vortex flowmeter amplifier board. The peak value of the amplified eddy current waveform can be converted to a pulse whenever the peak value exceeds the predetermined trigger level. Therefore, the flow sensitivity is reduced due to the increase in the trigger level.
2, zero adjustment vortex flowmeter correct wiring, through the low-frequency signal generator to the vortex flowmeter input zero amplitude signal, adjust the zero adjustment potentiometer, digital multimeter display value should be 4mA.
The correct wiring, vortex flowmeter signal generator output signal to the charge amplifier, increase the input signal amplitude, convert output square wave, change the output frequency of the signal generator, until the value displayed on the frequency meter is calculated by the above formula The full-scale frequency is up.
Changzhou Chengfeng has been devoted to the R&D and production of flow meters and level meters since construction for decades. Over the years, we have sold not only products, but also attitudes and services, focusing on the experience of customers. , truly from the customer's point of view, strive to achieve the perfect pre-sale and after-sale!
1. Trigger level adjustment Trigger level increase (sensitivity of pulse generation) will reduce the sensitivity of the flow. In the absence of any liquid flow in the pipeline, the occurrence of abnormal pulses due to pulsation flow due to pipeline vibration can be effectively handled by increasing the trigger level.
The trigger level can be adjusted by the TRG potentiometer on the vortex flowmeter amplifier board. The peak value of the amplified eddy current waveform can be converted to a pulse whenever the peak value exceeds the predetermined trigger level. Therefore, the flow sensitivity is reduced due to the increase in the trigger level.
2, zero adjustment vortex flowmeter correct wiring, through the low-frequency signal generator to the vortex flowmeter input zero amplitude signal, adjust the zero adjustment potentiometer, digital multimeter display value should be 4mA.
The correct wiring, vortex flowmeter signal generator output signal to the charge amplifier, increase the input signal amplitude, convert output square wave, change the output frequency of the signal generator, until the value displayed on the frequency meter is calculated by the above formula The full-scale frequency is up.
Changzhou Chengfeng has been devoted to the R&D and production of flow meters and level meters since construction for decades. Over the years, we have sold not only products, but also attitudes and services, focusing on the experience of customers. , truly from the customer's point of view, strive to achieve the perfect pre-sale and after-sale!
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