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How much does a thermal mass flowmeter cost?
2. Introduction to the working principle of the Velbar flowmeter
The working principle of the Velbar flowmeter is mainly based on the Bernoulli equation.. When the fluid passes through the probe, its front end will experience a slight increase in pressure relative to the static pressure of the pipeline due to the increased flow velocity, forming a high-pressure distribution area. On the contrary, due to the slower flow rate, the pressure at the back of the probe will decrease, forming a low-pressure area where the collapse force of the pressure socks is lower than the static pressure of the pipeline, and a partial vacuum state will be generated. The cross-sectional shape, surface roughness, and accurate position of the low-pressure tapping hole of the probe are crucial to its performance, especially the stability and accuracy of the low-pressure signal, which directly affects the accuracy of the flowmeter. As an insertable design, the Weiliba flowmeter inserts sensors into the pipeline through a reed tube. The sensors are equipped with multiple pairs of pressure tapping holes, usually three pairs, to measure the total pressure of the fluid, including static pressure (P2) and pressure due to average velocity (Pl). These pressure signals are introduced into the differential pressure transmitter, and by calculating two pressure differences (△ P=P1-P2), we can obtain a signal that reflects the average velocity of the fluid. This differential pressure is directly proportional to the average flow velocity of the fluid, providing us with a measurement basis for flow rate. The HAKK-ZJW series circular flow meter is suitable for high-precision flow measurement
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3... CSs latest research and development achievement - CMM 500 Powerbar flowmeter for compressor efficiency testing
CMM 500 Power Bar Flow Meter: The latest research and development achievement of German CS, the powerful tool for compressor efficiency testing. CMM 500 is a new reference flow meter developed by German CS Instrument Company specifically for high-precision measurement of compressor capacity and compressed air billing.. This flowmeter not only complies with the ISO1217 standard, but is also one of the most practical Venturi nozzle flowmeters currently on the market.
1. Product Features: The CMM 500 flowmeter has a super large measurement range of over 1:130, which means it can provide accurate measurement results under a wide range of flow conditions.
. Within the flow range of 0.2Qmax to Qmax with ultra-high precision, the measurement error of CMM 500 is less than 0.5%, ensuring high-precision measurement. This is crucial for applications that require accurate control of compressed air consumption. Easy to maintain, even during operation under pressure, CMM 500 can be repaired or maintained through mounting plates, including zero point calibration, condensate drainage, and sensor replacement for calibration. This design greatly simplifies maintenance work, improves equipment reliability and service life.2. Application Fields: Reference Measurement for Fan and Comp
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