The FS10i is a universal flow switch and flow monitor designed for simple insertion into ½ (13mm) or larger diameter pipes and square ducts. The unit is suitable for either liquid or air\/gas applications. It is fast responding and highly repeatable to both increasing and decreasing flow rate changes. The standard 1A relay trip point is easily set in the field for low or high trip point and the trip and reset points can be further tuned with hysteresis and time delay adjustments. Also included standard is a 4-20mA trending output of the flow rate for connection to ancillary controls or alarm systems. The FS10i includes a 10-LED array which provides both an indication the trip point has been exceeded (LED flashes on\/off) and of relative flow rate (10% increments) across the flow range. The FS10i provides best-in-class features for installation in rugged duty and long-life in industrial plants, process and large buildings. Its flow sensor’s thermowells are constructed of highly corrosion resistant Hastelloy C-276, it will operate in fluid temperatures up to 250°F\/121°C, IP protection rating to IP67, optional global agency approvals for installation in Division 2\/Zone 2 locations and it is the only unit in its price range to carry a SIL 2 compliance rating. It has no moving parts to clog and requires no routine maintenance which saves time and expense over any mechanical-technology based flow switch.","Measuring Principal: Thermal dispersion","Response Time: 4 sec. (1 time constant)","Process Connections: 1\/4″NPT(M) or 1\/2″NPT(M) compression fitting with either Teflon or metal ferrule","Repeatability: ±0.5% of reading","CE Marking, CRN, complies with Canadian Electrical code requirements of ANSI\/ISA 12.27.01-2011 as a single seal device","Materials of Construction (Wetted Parts)","316L SS with Hastelloy-C22 thermowells","Flow Sensitivity\/Setpoint Range","Water: 0.01 FPS to 0.5 FPS 0,003 MPS to 0,15 MPS Air: 0.25 FPS to 400 SFPS O,076 MPS to 122 MPS","Repeatability: ±0.5% of reading","Temperature Coefficient For temperatures > ±30°F ±16°C","Gas: Maximum ±0.025% of reading\/°F up to 250°F ±0,05% of reading\/°C up to 121°C Liquid: Maximum ±0.2% of reading\/°F up to 250°F ±0,367% of reading\/°C up to 121°C","Operating Temperature","-40°F to 250°F -40°C to 121","Teflon ferrule maximum temperature is 200°F 93°C","Operating Pressure","2000 psi 138 bar","Teflon ferrule maximum pressure is 150 psig 10 bar(g)","Insertion U lengths","2″50 mm fixed","6″150 mm with variable insertion depth, compression fitting with Teflon or metal ferrule

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