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Quick Details
Warranty:1 year
Customized support:OEM
Place of origin:Henan, China
Model Number:SDLU4-DN200
Type:Variable Area Air & Gas Flowmeters
Product Name:Air digital flowmeter electronic meter industrial vortex flow meter
Model:SDLU
Medium:CNG, LPG, Steam,etc.
Material:SS304
Connection:Flanged
Output:4-20mA
Power supply:12VDC~36VDC
Ambient temperature:-25 ~ +60℃
Accuracy:1.0% 1.5%
Protection grade:IP65

The SC-LUGB vortex flowmeter adopts advanced differential technology, with isolation, shielding, filtering and other measures to overcome the problems of poor shock resistance and small signal data disorder of similar products, and adopts unique sensor packaging technology and protective measures to ensure Improve the reliability of the product. The product has two types of vortex flowmeters, basic type and compound type. The basic type measures a single flow signal; the compound type can measure temperature, pressure and flow at the same time. Each type has an integral and split structure to adapt to different installation environments.
     The flange-mounted vortex flowmeter has a series of advantages such as wide range ratio, high accuracy, convenient installation and maintenance, and wide media adaptability. It can be widely used in the process measurement and energy-saving management of various low-viscosity liquids, gases, steam and other single-phase fluids in petroleum, chemical, metallurgical, machinery, food, paper, and urban pipeline heating, water supply, gas and other industries.

Working principle of flange-mounted vortex flowmeter

     The vortex flowmeter is composed of a vortex generator designed in the flow field, a detection probe, and corresponding electronic circuits. When the fluid flows through the vortex generator, two alternating rows of vortices are formed on both sides of it. This vortex is called the Karman vortex street. On the basis of the Karman vortex street theory, Strohar proposed that the frequency of the Karman vortex street is proportional to the flow velocity of the fluid, and gave the relationship between the frequency and the flow velocity:
                     f = St × V/d
                     Where: f vortex street frequency (Hz)
                     The average flow velocity on both sides of the V vortex generator (m/s)
                     St Strohal coefficient (constant)

     These alternating vortices form a series of alternating negative pressures. The pressure acts on the detection probe to generate a series of alternating electrical signals. After conversion, shaping, and amplification by the preamplifier, the output is synchronized with the vortex. Proportional pulse frequency signal or standard signal.