Technical Data Be smart. Measure it. Measurement Flow Accuracy 2 % of reading ± 0.3% FS Selectable units m³/h, m³/min, l/min, l/s, cfm, kg/h, kg/min, kg/s Measuring range see table below Repeatability 0.25 % o.RDG Sensor Thermal mass flow sensor Sampling rate 3 samples / sec Turndown ratio 1:100 Response time (t90) 0.5 sec Consumption Selectable units m³, ft³, l Reference conditions Selectable conditions 20 °C 1000 mbar (ISO1217), 0 °C 1013 mbar (DIN1343) freely adjustable Signal / Interface & Supply Analog output Signal 4 ... 20 mA, isolated Scaling 0 ... max flow, freely adjustable Load Max. 250R Update rate 1/sec Pulse output Signal Switch output, normally open, max. 30 VDC, 20 mA Scaling 1 pulse per consumption unit Fieldbus Protocol Modbus/RTU Supply Voltage supply 15 ... 30 VDC Current consumption 200 mA General data Configuration Wireless S4C-FS App for mobile phones Material Process connection Stainless steel 1.4404 (SUS 316L) Housing PC + ABS Sensor Ceramic, glass coated Metal parts Stainless steel 1.4404 (SUS 316L) Miscellaneous Electrical connection A1415: M12 (6 pole) other options: M12 (5-pole) Protection class IP65 Approvals CE, RoHS, FCC Process connection G1/2” (ISO 228/1) Weight 0.9 kg Operating conditions Medium Air, N2, O2, CO2 and other gases Medium quality ISO 8573: 4.4.3 or better Medium temperature -30 ... +140 °C Medium humidity < 90 % rH, no condensation Operating pressure Max. 1.6 MPa(g) Ambient temperature -30 ... +70 °C Ambient humidity < 99 % rH Storage temperature -30 ... +70 °C Transport temperature -30 ... 70 °C Pipe sizes ½” ... 12” (bigger pipes on request) S402 OEM Thermal Mass Flow Meter S402 comes with a safety line made by steel to prevent from shooting out while uninstalling 4/4
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