Gems Electronic Flow Sensors

RotorFlow® Sensors Provide Visual Indication, Continuous Sensing and Accurate Switching Bright, Visual indication with choice of pulsed DC output, or adjustable 1 amp switched output. Flow ranges from .1 GPM to 60.0 GPM Compact inline housings Available in high performance plastic, brass, or stainless steel housings. Determined to provide you with the most versatile line of flow sensors available, we've continued a non-stop refinement process for the entire RotorFlow® Series.  Gemsâ„¢ new generation of RotorFlow® sensors, the RF-2500 Series flow switch, has been totally re-engineered with a one piece composite rotor, stronger unibody construction, ceramic shaft and better sealing.  The results are greater durability with broader chemical, temperature and pressure capabilities. Today's RotorFlow® Series is state-of-the art and offers more options, better performance and durability than ever before...all at an affordable price geared for high volume, OEM applications. Select the RotorFlow® sensor that is right for your application by choosing one of our three distinct configurations.  You'll find details on each of these configurations inside. Switch Type

FT-110 Series ¨C TurboFlow Economical Flow-Rate Sensors  Low Cost Plus High Accuracy !à3% of Readin  Measures Low Liquid Flow Rates of .1 to 8 GPM  Lightweight Plastic Design Enables Mounting in any Position Gems Hall Effect turbine low rate sensor is ideal for OEM applications involving low flow liquid monitoring. The low cost coupled with 1/2% repeatability makes it an idealcandidate for replacing dispensing timer systems. Unlike existing timing systems, turbine technology is not inluenced by changes in system pressure caused by agingilters. The sensor!ˉs standard power and output speciications make it easy to retroit texisting controllers. Speciications Wetted Materials  Body  Nylon 12  Turbine   Nylon 12 Composite  Bearings  PTFE/15% Graphite Operating Pressure  200 PSIG Burst Pressure  2500 PSIG Operating Temperature  -4!aF to 212!aF (-20!aC to 100 Viscosity  32 to 81 SSU (.8 to 16 Centistokes) Filter  <50 Microns Input Power  5 to 24 VDC @ 8mA Output (Hz)  NPN Sinking Open Collector @ 20mA Maximum     Leakage Current 10|ìA (Pull-Up Resistor Required) A

 Low Flow Rates .1 to 2.5 LPM and High Accuracy !à3% of Readin  Lightweight Turbine Ensures Fast Startup  Mounts In Any Orientation Gems FT-210 features proven turbine technology in a small package for low flow applications. The turbine technology provides a highly repeatable sensor ideally suited for measurement of either volume dispensing and/or low rate applications. The small turbine reacts quickly to on/off dispensing applications. Each sensor is 100% tested, ensuring years of service life. Speciications Wetted Materials  Body  Nylon 12 (Grilamid TR55)  Turbine   Nylon 12 Composite  Bearings  PTFE/15% Graphite Operating Pressure  350 PSI (24 bar) Burst Pressure  1400 PSI (97 bar) Flow Range  .026-.65 gallons/minute       0.1-2.5 liters/minute       3.4-84.5 ounces/minute Pulses  83,200 per gallon       22,000 per liter       650 per ounce Frequency Output  36.6-917 Hz Operating Temperature  -4!aF to 212!aF (-20!aC to 100 Viscosity  32 to 70 SSU (.8 to 16 Centistokes) Filter&n

 High Accuracy: !à2% of readin  High repeatability: !à0.5% of readin  Overmolded electronics with integral cable strain reinforcement  Measures low rates from .2 to 4 GPM  Lightweight plastic design for multiple mounting positions The FT-330 is a highly accurate and repeatable, Hall Effect turbine low sensor designed for low low OEM applications. This low cost, NSF Std. 61 listed low sensor is ideal for water or beverage dispensing applications or any application with water based liquids. The 316SS shaft coupled with Delrin  bearings allows for accurate measurements during quick dispensing cycles. The sensor!ˉs standard power and output speciications make it easy to retroit existing controllers. Speciications Materials  Body  Glass Reinforced PPO (Noryl)  Turbine   PA Composite (Nylon)  Axle   316 Stainless Steel  Bearings  Delrin  (Polyoxymethylyne, POM) Inlet/Outlet Ports   3/8 NPT Male Pressure  Operating  200 PSIG  Burst    1000 PSIG Operating Temperature  -4!aF to 176!aF (-20!aC to 80 Viscosity  32 to 81 SSU (1.8 to 16 Centist