S431 OEM Pitot Tube Compressor Flow Meter Measurement Flow Accuracy 1.5 % o.RDG ±0.3 % FS Selectable units Volumetric Flow: Mass Flow: Actual Velocity: m³/h, m³/min, l/min, l/s, cfm kg/h, kg/min, kg/s, t/h, lb/h m/s, ft/min Measuring range see table below Repeatability 0.5 % o.RDG Sensor Differential pressure sensor with pitot tube Sampling rate 3/sec Turndown ratio 10:1 Response time (t90) 2 sec Consumption Selectable units m³, ft³, t, lb, l, kg Pressure Accuracy 0.5 % FS Selectable units bar, psi, kPa, MPa Measuring range 0 ... 1.6 MPa(g) Sensor Piezzo resistive sensor Temperature Accuracy 0.5 °C Selectable units °C, °F Measuring range -20 ... +120 °C Sensor Pt1000 Reference conditions Selectable conditions 20 °C 1000 mbar (ISO1217) 0 °C 1013 mbar (DIN1343) freely adjustable General data Configuration Wireless S4C-FS App for mobile phones Material Process connection Stainless steel 1.4404 (SUS 316L) Housing PC + ABS Sensor Stainless steel 1.4404 (SUS 316L) Miscellaneous Electrical connection 1 x M12 (5 pole) Protection class IP65 Approvals CE, RoHS, FCC Process connection M32 x 1.5 welding nipple Weight 1.7 kg Operating conditions Medium Wet/dry air, other gases Medium quality non corrosive Medium temperature -20 ... +120 °C Medium humidity no requirements Operating pressure 0 ... 1.6 MPa(g) Ambient temperature -20 ... +85 °C Ambient humidity < 95 % rH Storage temperature -30 ... 70 °C Transport temperature -30 ... 70 °C Pipe sizes >=DN50 Flow Ranges Tube Volumetric Flow Inch mm m³/h m³/min cfm Min Max Min Max Min Max 2” 53.1 121 1,298 2.0 21.6 71 764 2½” 68.9 206 2,218 3.4 37 121 1,305 3” 80.9 287 3,084 4.8 51 169 1,815 4” 100 443 4,760 7.4 79 261 2,802 5” 125 697 7,500 11.6 125 410 4,414 6” 150 1,009 10,853 16.8 181 594 6,387 8” 200 1,812 19,482 30.2 325 1,066 11,465 10” 250 2,833 30,465 47.2 508 1,667 17,929 12” 300 4,079 43,870 68 731 2,401 25,818 The flow is calculated based on medium conditions of air, 6 bar(g), 70 °C, and 90% humidity. For other gas and condition please download Flow Range software from www.suto-itec.com Stated measuring ranges under following conditions: • Standard flow in air • Reference pressure: 1000 mbar • Reference Temperature: +20 °C Signal / Interface & Supply Analog output Signal 4 ... 20 mA Scaling 0 ... max flow Load 250R Update rate 1/sec Pulse output Signal Max 30 V, 200 mA Scaling 1 pulse per consumption unit Fieldbus Protocol Modbus/RTU Supply Voltage supply 12 ... 36 VDC Current consumption 60 mA, 1.5 W 4/5 Technical Data
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