Dwyer Instruments, a leading provider of an entire series of affordable and practical instrumentation, is introducing a novel range of Paddlewheel Flow sensor in the PFT Series with a square wave output.
Paddlewheel Flow Sensor
The PFT Series Flow Sensor is utilized for measuring the flow of liquid in pipes ranging from 1½ to 40 inches in size and its insertion structure permits one model of the series which has the capability to utilize the flow sensor for the entire length of the pipe.
The magnet-free function employing the inductive sensing method enables the lower flow monitoring and it is not influenced by the magnetic elements in the flow. A signal with a pulsed output is produced in accordance with the wavelength proportional to the flow speed. The weatherproof construct and submersible design makes it ideal for irrigation purposes and many other applications. The rugged design restricts damage and gives it an extended durability. The unique flow sensor is available in brass or in 316 SS versions for maintaining consistency in different media.
Source: http://www.dwyer-inst.com