New digital output sensor option for Gems RotorFlow series

The RotorFlow Output (RFO) has been specifically designed for flow rate monitoring or metering applications. RFO type sensors provide a pulsed dc voltage output (between 4.5 to 24VDC), which is proportional to the rate of flow and easily integrated into most digital logic units. Digital rate meters, totalisers, and other electronic controllers utilise the output signal.

The RotorFlow’s paddlewheel design with high visibility rotor sensors provides verification at a glance to confirm that fluids are moving within the fluid lines. As liquid passes through the RotorFlow body, a magnetic rotor spins at a rate proportional to flow. The magnetic fields turning with the rotor excite a static Hall Effect sensor and generate a series of voltage pulses. The sensors can monitor fluids with flow rates ranging from 0.4 to 227 litres per minute with accuracy typically within ±7%.

RotorFlow sensors are compact, panel mountable for ease of installation and are available in ¼” to 1” port sizes. The housing bodies are available in brass, stainless steel and polypropylene, allowing the sensors to be used in a range of applications, depending on the operating pressures and temperatures likely to be experienced in service.

Typical applications include water purification, dispensing systems, chemical metering, laser and welders, semiconductor processing, water injection systems, and chillers and heat exchangers.

RotorFlow sensors are also available in RotorFlow Analog (RFA) and use the same operating principle, but provide an analogue output signal of between 0 to 10 VDC.