Precession Vortex Flow Meter

Precession Vortex Flow Meter

The precession vortex flowmeter integrates the function of flow, temperature, and pressure detection, and can automatically compensate for temperature, pressure, and compression factors. It is an ideal instrument for gas measurement in petroleum, chemical, electric power, metallurgy, and other industries.

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Product Description

Characteristics

● 24V, 3.6V battery powered
● Comes with temperature and pressure compensation
● Measurement of natural gas, compressed air, and other gases
● LCD, meter head rotates 360°
● Protection grade IP65
● 16-bit computer chip, high integration, small size, good performance, strong machine function;
● No mechanical moving parts, not easy to corrode, stable and reliable, long-term operation without special maintenance;
● The use of intelligent seismic technology, effective suppression of vibration and pressure fluctuations caused by interference signals;
● Dual detection technology can effectively improve the detection signal strength, and inhibit the interference caused by pipeline vibration;
● Output pulse, 4 ~ 20mA analog signal, and has RS485 interface, can directly network with the microcomputer, transmission distance up to 1.2km.
● EEPROM technology, easy parameter setting, can save up to one year of historical data;

Specification

The flow profile of the flow sensor is similar to the profile of a Venturi tube. A set of helical vanes is arranged at the inlet. When the fluid enters the flow sensor, the vane forces the fluid to produce a vortex flow. When the fluid enters the diffusion section, the vortex flow begins to rotate twice under the action of backflow, forming a gyroscopic vortex precession phenomenon. The precession frequency is proportional to the flow rate and is not affected by the physical properties and density of the fluid, and the detection element can measure the secondary rotational precession frequency of the fluid to obtain good linearity in a wide flow range. The signal is amplified, filtered, and transformed into a pulse signal proportional to the flow rate by the preamplifier, and then sent to the microprocessor for integration processing together with the temperature, pressure, and other detection signals, and finally, the measurement results are displayed on the LCD screen (instantaneous flow, cumulative flow, and temperature and pressure data)