OMEGA FTB-804-I Offers

When liquid flows through the casing of sensor, the impulse of fluid will provide the blade with a rotation moment as there is an angle between the blade of impeller and the flow direction. The blade will rotate as the friction moment and the fluid resistance are overcome and it will reach a stable speed when the moments are at balance.

Under certain conditions, the rotation speed of blade will be in direct proportion to the flow velocity. Due to the magnetic conductivity of blade, when located in the magnetic field generated by signal detector (made of permanent magnet steel and coils), the rotating blade will cut the magnetic lines and periodically change the flux through the coil, thereby inducing electrical impulse signals at both ends of the coil.

The induced signals, after amplified and rectified by amplifier, will form a continuous rectangular impulse wave with certain amplitude which may be remotely transmitted to display instrument indicating the instant flow and the cumulative flow of fluid. Within a certain range of flow, the impulse frequency f is in direct proportion to the instant flow of fluid flowing through the sensor.

Features

• The sensor is of hard alloy bearing thrust type, which may guarantee the precision and improve the wear resistance performance as well.
• Simple and firm structure, easy for installation and dismantling.
• Wide range of measuring with very low lower flow velocity limit.
• Small loss of pressure, fine repeat ability and high precision.
• High resistance to electromagnetic interference and vibration.

Applications

• Measuring liquid flow rate in industrial process piping
• Monitoring instantaneous and cumulative flow of clean fluids
• Inline flow measurement with 4 mA to 20 mA signal transmission to remote display instruments
• Flow metering in water treatment and chemical processing lines