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Gems RotorFlow is a family of electronic flow sensors, designed to provide reliable and continuous sensing, accurate switching, and clear visual indication within a variety of flow rate monitoring and metering applications.

With available measurement ranges from 0.1 GPM to 60.0 GPM (0.4 LPM to 227 LPM), the Gems RotorFlow line features a unique paddlewheel design which combines high-visibility composite rotors and durable solid-state electronics. These high-quality components are packaged together within compact, panel mounted inline housings, with customer choice of high-performance plastic, brass or stainless steel construction. Units are easy-to-use, install, and maintain, and offer an unprecedented industry price-to-performance ratio.

RotorFlow sensors are organized into three distinct types. These include Switch (RFS), Output (RFO and RFA) (DC and analog), and Indicator (RFI) Types. RFS Types allow for specific flow set point switching, which is fully adjustable over the specified flow range.  The dynamic operation of the electronic rotor itself prevents jamming and false actuation. Once set to a desired actuation point, an RFS Type sensor will switch to a “no-flow” condition, should a rotor stop moving. A local LED signals when a set point has been reached.

Gems RotorFlow RFO and RFA Type sensors offer flow rate measurement accuracy and integral visual indication. They are easily integrated into most digital logic units. RFO Types provide a 4.5 to 24 VDC pulsed DC voltage output that is directly proportional to measured flow rate, while RFA Types provide a continuous 0-10 VDC analog output. For customers needing simple visual indication, RFI Types offer effective, “at-a-glance” flow rate estimation and confirmation, with easy viewing of the run speed of the brightly orange colored, single-piece composite rotor. RFI Types are available with choice of either a DC pulsed or an adjustable 1 amp switched output.

Typical applications for Gems RotorFlow sensors include chillers and heat exchangers, medical equipment, lasers and welders, water purification systems, potable water dispensing systems, water injection systems, chemical metering equipment, semiconductor processing equipment, robotic welding equipment, and x-ray tubes.

As standard catalog product, RotorFlow test samples can be produced within just a few business days. Special configurations, including dual function RotorFlow parts, are also available in OEM volumes to meet stringent application parameters. Custom flow sensors from Gems are typically available in shorter lead times than can be found with many other industry off-the-shelf solutions.

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