The FSW530 Series flow switches are capable of detecting extremely low liquid flow rates from 13 mL/minute up to 10 L/minute with a full scale switch accuracy of ±1.0% or better! A wide variety of fluids may be measured. Repeatable results are achieved using a patented pelton-type microturbine wheel. This proven design has been providing precision results since 1988 and has developed a well deserved reputation for continuous operational service for many years without failure. Because of the compact size and economical cost of these products, the FSW530 models are suitable for a wide variety of industrial, commercial, laboratory and OEM applications. Some sample applications include high/low alarms for hydrocarbon fluids, fuels, light oils, solvents, coolant, pesticides, mild acids, alkalis, and de-ionized water. Either plastic or metal construction may be selected.
SPECIFICATIONS Accuracy: ±1% full scale Repeatability: ±0.5% full scale Recommended Liquids: Low viscosity (<10 cS), translucent or transparent chemically compatible with a minimal amount of entrained air Fittings: Acetal, stainless steel (optional) O-rings: FKM, EPDM (optional) Power: 12 to 24 Vdc @ 75 mA Maximum Pressure: Acetal: 6.9 bar (100 psig) Stainless Steel: 34.5 bar (500 psig) Enclosure: NEMA 1 (IP10) Recommended Filtration: 25 microns or less Relay: FET switch 24 Vdc, 250 mA Response Time: <1 second at 97% of final value Switching Hysteresis: ±2.0% full scale Dimensions: 60 x 55 x 90 mm (2.4 x 2.2 x 3.5") Temperature: Operation: 5 to 55°C (41 to 131°F) Storage: 0 to 70°C (32 to 158°F) Temperature Sensitivity: ±0.2% full scale or less per °C Wetted Materials: Ryton or 316 SS, epoxy, glass, sapphire and FKM or EPDM (optional)