Flow Set Point Switching - RFS Types Combines visual confirmation of flow with dynamic, electronic switch operation Easy, adjustable switch point calibration: a local LED signals when set point is reached Dimensions Polypropylene Bodies 2.37 (60.2 mm) .64 (16.3 mm) RotorFlow(R) Switches build an extra level of reliability and protection into your equipment. By principle of operation, the rotor cannot be deceived into indicating a positive flow situation when no flow actually exists. Once set to a desired actuation point, RotorFlow will switch to a "no-flow" condition should the rotor stop for any reason. 2.50 (63.5 mm) 3.06 (77.7 mm) VDC VAC Typical Applications Protect expensive electronic equipment from coolant flow failure on... .80 (20.3 mm) 2.38 (60.5 mm) * Semiconductor Processing Equipment * Lasers * Medical Equipment * X-Ray and Other High Power Tubes * Robotic Welding Equipment .80 (20.3 mm) 4.50 (114.3 mm) Brass and Stainless Steel Bodies - .25 and .50 Port File No. E45168 2.37 (60.2 mm) Specifications FLOW SENSORS - ELECTRONIC Wetted Materials Body Rotor Pin Rotor Lens O-Ring Low Flow Adaptor Operating Pressure, Maximum Brass or Stainless Steel Body Polypropylene Body Operating Temperature, Brass or Stainless Steel Body Polypropylene Body Electronics Viscosity, Maximum Input Power Relay Contact Ratings (SPDT) Current Consumption 24 VDC 115 VAC Repeatability Set Point Accuracy (Factory Set) Set Point Differential Electrical Termination 2.50 (63.5 mm) Brass, 316 Stainless Steel or Polypropylene (Hydrolytically Stable, Glass Reinforced) Ceramic PPS Composite, Black Polysulfone Viton(R) (Alloy Bodies); Buna N (Polypropylene Body) Glass Reinforced Polypropylene 200 PSIG (13.8 bar) @ 70F (21C), 100 PSIG (6.9 bar) Max. @ 212F (100C)1 100 PSIG (6.9 bar) @ 70F (21C), 40 PSI (2.8 bar) Max. @ 180F (82C) -20F to 212F (-29C to 100C) -20F to 180F (-29C to 82C) 150F (65C) Ambient 200 SSU 24 VDC or 115 VAC 1 Amp, 24 VDC Resistive; 0.3 Amp, 110 VAC No Load Load (Relay Energized) 20mA 35mA 45mA 95mA 2% Maximum Deviation 5% 15% Maximum 20 AWG PVC-Jacketed, 24 Cable. Color Codes: Red = +VAC/VDC, Black = Ground, White = N.O. Contact, Brown = N.C. Contact, Green = Common 3.01 (76.4 mm) VDC VAC .87 (22.1 mm) 1/4 PORTS = .80 (20.3 mm) 1/2 PORTS = .87 (22.1 mm) 4.50 (114.3 mm) 2.32 (58.9 mm) Brass and Stainless Steel Bodies - .75 and 1.00 Port VDC 2.50 (63.5 mm) 1.06 (26.9 mm) 2 (50.8 mm) 3.94 (100 mm) VAC Note: 1. Optional pulsed output available with RFS. Consult factory. 1.06 (26.9 mm) F-2 Visit www.GemsSensors.com for most current information. 4.76 (120.9 mm) RFS TYPE Switch Set Point Calibration With LED Signal (RFS Type) With the unit installed in the line and power supplied, complete the following steps to calibrate switch actuation point with proper flow rate. A small flat-blade screwdriver is the only tool required. 1. Adjust liquid flow in the line to the rate at which switch actuation is desired. 2. Insert screwdriver into opening on backside of housing and fit blade into the potentiometer adjustment screw inside. 3. If LED is not illuminated, slowly turn screwdriver counterclockwise and stop as soon as LED illuminates. 4. If LED is illuminated, turn screwdriver clockwise until LED light goes out. Then, slowly turn screwdriver counterclockwise and stop as soon as LED illuminates. 1/2" STRAIN RELIEF HOLE LED INDICATOR IS ILLUMINATED WHEN RELAY SWITCH IS CLOSED. AIDS FIELD CALIBRATION CABLE OUTPUT SET POINT ADJUSTMENT How To Order .25 Flow Ranges - GPM Low Range* Standard Range 0.1 to 1.0 0.5 to 5.0 Polypropylene .50 .25 Brass .50 .75 1.00 9/16-18** 1.5 to 12.0 0.1 to 1.0 1.5 to 12.0 - - 0.1 to 1.0 4.0 to 20.0 0.5 to 5.0 4.0 to 20.0 5.0 to 30.0 8.0 to 60.0 0.5 to 5.0 Stainless Steel .50 .75 1.00 1.5 to 12.0 - - 4.0 to 20.0 5.0 to 30.0 8.0 to 60.0 Input Power Part Number 24 VDC 155425 115 VAC 155876 24 VDC 155485 High Resolution Black Rotor 115 VAC 155886 PPS composite. Each of the six rotor arms is magnetized. A PTFE loaded bushing ensures long life. 24 VDC 156265 115 VAC 156266 24 VDC 156268 115 VAC 156269 24 VDC 180395 115 VAC 180396 24 VDC 181688 115 VAC 181689 24 VDC 165073 115 VAC 165074 24 VDC 165077 115 VAC 165078 24 VDC 181691 115 VAC 181692 24 VDC 181693 115 VAC 181694 Pressure Drop-Typical Standard 12 Flow Range 9 Units 6 0 012 345 10 15 Flow Rate - GPM 20 25 10 15 9 Low Flow Range Units 6 0 .1 .2 .3 .4 .5 .6 .7 .8 .9 1.0 9 Visit www.GemsSensors.com for most current information. 3/4 Ports 6 1.0 Ports 3 0 For higher pressure/temperature ratings, stainless face plates are available. Consult factory. 2 3 4 5 Flow Rate - GPM 12 PSI GEMS caters to OEM needs with special configurations for potable water and enhanced chemical capabilities. Consult factory for further details. 1/2 Ports 1/4 Ports 3 0 High Flow Units Special Requirements: 1/2 Ports 3 * With use of Low Flow Adapter supplied. See Page F-8 for more information. ** Straight thread with O-ring seal. - Stock Items. 1/4 Ports PSI Port Size NPT PSI Body Material FLOW SENSORS - ELECTRONIC Specify Part Number based on desired body material, port size and input power rating. 0 10 20 30 40 50 60 70 Flow Rate - GPM 80 90 100 110 F-3 Easy Installation and Maintenance Panel Mounting A proper installation will enhance RotorFlow sensor performance. Install using standard pipe fitting tools; horizontal fluid lines are recommended. For further installation and maintenance recommendations, refer to one of the following instruction bulletins: RFO Types-Part Number 157258; RFI Types-Part Number 157259; RFS Types-Part Number 157261. Since their function is to monitor dynamic fluid flow, naturally the rotor will react to turbulence, pulsation, entrained air, and other flow anomalies induced in the flow stream by other process hardware. For optimum performance, install RotorFlow units where nominal flow conditions exist with ports located at the top. Incoming flow may be placed to either port; a minimum of 8 inches (20 cm) of straight pipe on the inlet side is required. When operating in the low flow range, the supplied Low Flow Adapter must be installed in the incoming port. 8 MIN Plastic Bodies. Two (2) mounting ears are provided at the body center line to receive #8 self-tapping screws to accommodate panel mounting of the plastic RotorFlow units. Note: ANSI T type 23 self-tapping screws are recommended. They may be replaced with standard machine screws if re-installation should be required. Brass and Stainless Steel Bodies. Two (2) mounting holes are provided on the body centerline, as shown below. #8-32UNC-2B screws are required for mounting. 2.50 (63.5 mm) (20 CM) 8 MIN (20 CM) 2.50 (63.5 mm) Incoming Flow Incoming Flow Low Flow Adapter Low Flow Adapter FLOW SENSORS - ELECTRONIC Except for straight-thread versions, RotorFlow sensors connect to piping via NPT mating thread forms.. The use of an appropriate thread sealant is necessary to assure a leak-tight connection. Permatex "No More Leaks(R)" or 2 wraps of Teflon(R) tape are the only sealants recommended for GEMS flow sensors. Straight-thread versions require an O-ring for sealing. 150 micron filtration is recommended. However, should foreign particles enter the RotorFlow sensor, accumulation is easily cleared by removing the lens from the body. The lens is removed by turning its 7/16 hex center hub 45 counter-clockwise with a standard socket wrench. To reinstall the lens, simply reverse the process. Pressure must be relieved from the system prior to sensor clean-out. O-rings should be lubricated prior to re-assembly. Low Flow Applications A low flow adapter is supplied with all Rotorflow units. It is used to produce accurate response at low flow rates. Install the adapter, as shown above, in the port selected for incoming flow. RotorFlow(R) Maintenance Kits Rebuild your RotorFlow(R) Sensors and Switches in less than 5 minutes with one of these kits. Includes: * Ceramic Rotor Pin * 6-Pole Magnetic Rotor with PPS/PTFE Bushing 2.50 (63.5 mm) * Buna N or Viton(R) O-Ring 2.50 (63.5 mm) * Polysulfone Lens Rotorflow(R) Type Line Size 1/4 & 1/2 3/4 & 1 Part Numbers Body Material O-Ring Material in Kit RFA/RFO/ RFS RFI Plastic Buna-N 155870 155872 Brass/SS (R) Viton 167364 166267 Brass/SS Viton(R) 182695 157187 - Stock Items. RotorFlow Sensor Special Capabilities are Yours for the Asking. (R) Gems caters to OEM needs with special configurations that go beyond the standards in this catalog. We can provide RotorFlow sensors with enhanced chemical compatibility, higher temperature and pressure capabilities, and alternate electrical terminations. Other Capabilities Available to OEMs: * Electrical outputs: Combined switch and frequency; transistor switching; 0-10 VDC analog. * Custom face plate (cast stainless steel face plate pictured) Buna N, Viton, EPDM, Silicon or Other Material O-Rings Polysulfone, Stainless Steel or Polypropylene Lens Panel Mounting 2.50 (63.5 mm) Tabs 2.50 (63.5 mm) PPS Composite with Teflon(R) or Nylon Loaded Bushing Long-Life Ceramic Rotor Pin RF-2500 Sensors Hydrolytically Stable Polypropylene, Stainless Steel or Brass We are committed to providing our customers with the product that best meets the requirements of their applications. Please call us and tell us what you need, and ask us about Swagelok(R) tube fittings, faceplate options, and 9/16 and 3/4 straight-thread versions. Call 800-378-1600 F-8 Visit www.GemsSensors.com for most current information.