How to adjust the scale vortex flowmeter sensitivity

Abstract: how to adjust the scale vortex flowmeter sensitivity information produced by excellent flow meter, flow meter manufacturer to offer you the quotation. Vortex flowmeter is mainly used for industrial piping medium fluid flow measurement, such as gas, liquid, steam and other media. Is characterized by small pressure loss, wide range, high precision, working condition of the measurement volume flow is almost not affected by the fluid density, pressure, temperature,. More flow meter manufacturers choose model price quote you are welcome to inquire, here's how to adjust scale vortex flowmeter sensitivity article details. Vortex flowmeter is mainly used for industrial piping medium fluid flow measurement, such as gas, liquid, steam and other media. Is characterized by small pressure loss, wide range, high precision, working condition of the measurement volume flow is almost not affected by the fluid density, the influence of the parameters such as pressure, temperature, viscosity. No liquid in the pipe flow vortex flowmeter, due to the noise made by pipeline vibration receiver abnormally count, then it should be for instrument which can adjust the sensitivity. 1, the adjustment of the amplifier gain generally do not need to adjust the gain of the amplifier vortex flowmeter, unless after replacement of the sensor. By the AMP on the amplifier board A potentiometer to adjust the amplifier gain, monitoring the large eddy current waveform on the oscilloscope, in small flow zui, eddy current waveform peak at about 100 MVP - P。 2, the adjustment of the trigger level trigger level increased ( Pulse sensitivity) , can reduce the sensitivity of traffic. No liquid flow in the pipe, because the pipeline vibration, pulsating flow appear noise caused by abnormal pulse generating can be treated by increasing the trigger level effectively. By vortex flowmeter in TRG amplifier board potentiometer can adjust the trigger level, enlarge the eddy current waveform peak whenever more than predetermined trigger level, can be converted into a pulse. Therefore, due to the increase the trigger level, flow sensitivity will decrease. When the trigger level MVP - 80 P to MVP - 350 P, the sensitivity of the results will be 80/350 = a quarter. 4 ( The sensitivity ratio) Times. When change the sensitivity, the results of zui small flow ( Measurable lower limit traffic) About 1 / ( The sensitivity of the open square multiplied by the standard of zui little traffic) 。 3, zero adjustment of vortex street flowmeter correct connection, through the low frequency signal generator to vortex street flowmeter input signal amplitude is zero, adjust the zero point adjustment potentiometer, the display value of digital multimeter should be 4 ma. 4, the adjustment of the full scale if you don't know the full range of frequency, through zui big flow rate, b to calculate the full scale frequency calibration instrument, its formula is: fmax = Kmax correct wiring, using vortex flowmeter signal generator output signal to charge amplifier, increasing the input signal amplitude, conversion output pulse, change the output frequency signal generator, until the value shown on the frequency meter is calculated according to the type on the full range of frequencies. At this point, the fixed frequency constant, and adjust the range potentiometer, in value of the digital multimeter to 20 ma. Above is all there is in this article, you are welcome to inquire me manufacturer flowmeter selection, quotation, etc.

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