⎝⎛星力捕鱼⎞⎠

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Industry Information
Vortex flowmeter uses piezoelectric stress sensor with high reliability
2012-4-5 9:53:48


,主要用于工业管道介质流体的流量测量,如气体、液体、蒸气等多种介质。 Intelligent vortex flowmeter is mainly used for flow measurement of industrial pipeline medium fluid, such as gas, liquid, vapor and other media. It is characterized by small pressure loss, large measuring range and high accuracy. It is hardly affected by parameters such as fluid density, pressure and temperature when measuring working volume flow. No moving mechanical parts, so high reliability and low maintenance. Intelligent vortex flowmeter parameters can be stable for a long time. The instrument uses a piezoelectric stress sensor with high reliability and can work in a stable range of -25 degrees Celsius to +320 degrees Celsius. It has analog standard signals and digital pulse signal output. It is easy to be used with digital systems such as computers. It is a relatively advanced and ideal flow meter.

应该注意些什么? What should I pay attention to when choosing a vortex flowmeter ? Below we will remind you of two requirements on this topic; the applicable medium is wide and the price is low. It plays a major role in gas flow measurement in industrial production. The quality is related to two parts: 1. Probe 2. Circuit board
1. Probe: There are two piezoelectric crystals inside, one for anti-vibration and one for detection. The probe leads are the two leads of the test piece. The probe housing is inserted by the vortex body tube wall and is fixed on the vortex body tube wall by a fixing flange. The probe can work normally below 300 ℃, and the highest resistance is 350 ℃. If the temperature is higher, the sealing porcelain will be damaged, the performance of the probe will be reduced, and the probe will even be damaged. We can use the multimeter “× 10k” to check the two leads of the probe, which should be infinite. If there is a resistance value, the performance of the probe is reduced; if it is below tens of kiloohms, the probe is damaged. Second, the circuit board: Its design is directly related to the correctness of the signal generated by the vortex street. We can usually see the wave pattern generated by the flowmeter when the oscilloscope is working.
It is very important that the seal between the sensor and the meter body is very important in the production. The meter body will leak if it is not well sealed. The pressure test should be performed before leaving the factory, and the flow rate should be calibrated by the calibration device.

制作,才能保证我们更好使用。 Choosing a good vortex flowmeter can ensure our better use.