4-20mA Threaded Flange Connection Diesel Gasoline Methanol Liquid Turbine Flow Meter for Water
Nominal diameter: DN15-DN200mm
Accuracy: ±1%R、±0.5%R、±0.2%R (to be customized)
Instrument type: Field display type, pulse output type, 4-20mA output type, split remote display type
Applicable medium: No impurities, low viscosity, no strong corrosive liquid
Turbine flowmeter working principle: Fluid flows through the sensor shell, because the blade of the impeller has a certain Angle with the flow direction, the impulse force of the fluid makes the blade have a rotational torque, and after overcoming the friction torque and fluid resistance, the blade rotates, and the rotational speed is stable after the torque is balanced. Under certain conditions, the rotational speed is proportional to the velocity. It is in the magnetic field of the signal detector (composed of magnetic steel and coil), the rotating blade cuts the magnetic field line, and periodically changes the magnetic flux of the coil, so that both ends of the coil are induced by the electrical pulse signal, the signal is amplified by the amplifier, forming a continuous rectangular pulse wave with a certain amplitude, which can be transmitted to the remote display instrument, showing the instantaneous flow and cumulative amount of fluid.