The model 330 is a compact, programmable relay control capable of converting the signal from flow sensors into a flow switch.
With an onboard microcontroller and digital circuitry, the model 330 is programmed from a Windows® based computer program. This eliminates the need to set dip switches or potentiometers and produces precise, accurate and drift free control of the relay outputs. In addition to accepting the square wave signal, the model 330 can accept other pulse and sine wave inputs.
The compact cast epoxy body measures 44 mm (1.75”) x 70 mm (2.75”) x 38 mm (1.5”) and can easily be mounted to panels, DIN rails or enclosures. With multiple inputs, ease of use and a variety of enclosures, the model 330 is a powerful, competitive priced relay control.
The series feature a six-bladed impeller design with a proprietary, non-magnetic sensing mechanism. The impeller shape coupled with the absence of magnetic drag provides accuracy and repeatability throughout the flow range of the sensors. As the liquid flow turns the impeller, a low impedance square wave signal is transmitted with a frequency proportional to the flow rate.