Micro vortex flowmeter simple structure, high accuracy, easy to install and maintain, can be used for real-time monitoring of the liquid flow and temperature in the pipeline, support for flow and temperature (4 ~ 20) mA signal or 485 communication, alarm switch output, and the use of OLED real-time display of the fluid flow and temperature, to achieve the pipeline in the flow of the temperature of the one-monitoring function. This product is widely used in petrochemical, electric power, gold, steel mills, paper, food processing, water treatment, battery factory and other industries.
| Product |
Micro vortex flow meter |
| Model |
SUP-FVM200 |
| Measured variable |
Flow rate,temperature |
| Nominal diameter & flow range |
DN8：1~15 L/min |
| DN10：3~30 L/min |
| DN15：5~50 L/min |
| Communication output |
RS485,MODBUS-RTU |
| Temperature range |
0...90℃ |
| Power supply |
24 VDC |
| Accuracy |
Flow：± 3%；Temperature：± 1℃ |
| Medium type |
Liquid(Water or water-soluble liquids such as ethylene glycol) |
| Process pressure |
MAX 1.2MPa (at 40℃) |
| Protection level |
IP65 |
Vortex flowmeter is based on Kamen and Strohal about the vortex generation and vortex and flow relationship between the theory to measure the flow of steam, gas and low viscosity liquids. As shown in Figure 1, in the table body vertically inserted into a triangular column that is the vortex generator, when the table body in the medium flow through, in the back of the triangular column alternately produce the direction of the opposite direction of the regular Carmen vortex, the vortex of the separation frequency F and the flow rate of the medium is proportional to the speed of the V. The vortex is detected by the sensing head, the vortex is generated by the vortex. The number of vortices detected by the sensing head, you can measure the fluid flow rate, and then calculated according to the meter body calibre of the measured medium volume flow rate.
F=St*V/md
Q=3600*F/K
M=Q*ρ
Where:
F: vortex frequency generated by fluid flowing through the triangular column of the vortex flowmeter (unit: Hz)
St: Strohal constant (dimensionless)
V: the average flow velocity of the fluid in the pipe (unit: m / s)
m: the ratio of the bow-shaped circulation area on both sides of the triangular column to the cross-sectional area of the measurement pipe (unit: dimensionless)
d: vortex flowmeter table within the triangular column facing the width of the flow surface (unit: m)
Q: Instantaneous volumetric flow rate (unit: m3 / h)
K: vortex flowmeter meter coefficients (unit: the number of pulses / cubic metre) M: instantaneous mass flow rate (unit: kg / h)
ρ: fluid density (unit: kg / m3)
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Features
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All-in-one temperature and flow sensor for integrated monitoring of flow temperature in pipelines.
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Digital communication, analogue integrated.
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Support flow and temperature intelligent display alarm contact output.
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Self-illuminated OLED, clear and sharp display.
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The two ends of the flow meter are designed for live connection, easy to install and remove, saving cost.
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304 base and aluminium alloy case, scale and corrosion resistant.
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Enclosure protection class IP65, can be used in harsh environments.
