A liquid turbine flow sensor converts the flow rate of liquid in a pipeline into electrical pulse signals, which are then processed by a display instrument or computer system to complete the measurement of the pipeline
Measurement or total quantity metering. Turbine flow instruments include liquid turbine flow sensors, liquid turbine flow transmitters, and on-site display turbine flowmeters, etc., belonging to
The meter is suitable for measuring clean liquids and can be used to measure volumetric flow rate or total volume in enclosed pipelines. It features a simple structure, portability, high accuracy, and repeatability
With features such as sensitivity, ease of installation, maintenance, and use, it is widely used in industries such as petroleum, chemical, water supply, food, pharmaceutical, and scientific research and experimentation. It serves as a tool for flow measurement and energy conservation

Working Principle
When fluid flows through the instrument, it drives the impeller inside to rotate. Then, through magnetic coupling between the impeller and the signal detector, the flow rate of the fluid is converted into electrical pulses
The signal is amplified and shaped by an amplifier and transmitted to a display instrument, thus achieving the measurement of the volume flow rate or total amount of the fluid.
Within a certain flow rate range, the pulse frequency f is directly proportional to the volumetric flow rate Q of the liquid flowing through the sensor. The flow rate equation is: Q=f/K
In the formula: f – pulse frequency
The meter factor [1/L] of the K-sensor is provided in the “Calibration Sheet”.

Main Parameters
• Sensor implementation professional standard: JB/T9246-1999 Turbine Flow Sensor
• Temperature of the fluid being measured: Regular type -20 to +120℃
Explosion-proof type -20~70℃
• Input signal: two-wire output
Output low-level IOL ≈ 3mA
Output high level IOH ≈ 13mA (square wave)
• The load resistance R (including line impedance) is within the range of 100 to 500Ω (selected according to the requirements of the configured display instrument or other receiving device input signals)
• Three-wire output: VOP-P≥5V (square wave)
• Power supply: Two-wire system: +24VDC
Three-wire system: +12VDC to +24VDC
• Transmission distance: 1Km