Measurement Flow Accuracy 1.5 % of reading ± 0.3 % FS Selectable units m³/h, l/min, cfm, kg/h Measuring range See table on the previous page Repeatability 0.5 % of reading Sensor Thermal mass flow sensor Sampling rate 10 samples / sec Turn-down ratio 1:100 Response time (t90) 0.5 sec Consumption Selectable units m³, ft³, l, kg Pressure Accuracy 0.5 % FS Selectable units Bar, psi Measuring range 0.01 ... 1.6 bar(a) Sensor Piezo resistive sensor Reference conditions Selectable conditions 20 °C 1000 mbar (ISO1217) General data Configuration Wireless S4C-FS App for mobile phones PC Software S4A PC software for data analyzes Display Integrated 4 digit LED Data Logger Storage 8 Mio. values Material Process connection Aluminum alloy Housing PC + ABS Sensor Ceramic, glass coated Metal parts Aluminum alloy Miscellaneous Electrical connection 2 x M8 (4 pole) Protection class IP54 Approvals CE, RoHS, FCC Process connection G-thread Weight 0.45 ... 1.1 kg (depends on model) Signal / Interface & Supply Analog output Signal 4 ... 20 mA (4-wire), isolated Scaling 0 ... max flow, freely adjustable Load Max. 250 Ohm Update rate 3/sec Pulse output Signal Switch output, normally open, max. 30 VDC, 200 mA Scaling 1 pulse per consumption unit Fieldbus Protocol Modbus/RTU Supply Voltage supply 15 ... 30 VDC Current consumption 120 mA @ 24 VDC Data interface Connection USB micro Technical Data S418-V Compact Thermal Mass Flow Meter for Vacuum Applications Vacuum Scales Bar(a) Inch Hg(g) kPa(g) Bar(g) mbar(a) 1.00 0.00 0 0.00 1000 0.90 -2.95 -10 -0.10 900 0.80 -5.91 -20 -0.20 800 0.70 -8.86 -30 -0.30 700 0.60 -11.81 -40 -0.40 600 0.50 -14.77 -50 -0.50 500 0.40 -17.72 -60 -0.60 400 0.30 -20.67 -70 -0.70 300 0.20 -23.63 -80 -0.80 200 0.10 -26.58 -90 -0.90 100 0.01 -29.24 -99 -0.99 10 Operating conditions Medium Air, N2, O2, CO2 and other gases Medium quality ISO 8573: 4.4.3 or better Medium temperature 0 ... 50 °C Medium humidity < 90 % rH, no condensation Operating pressure Max. 10 bar(g) Ambient temperature 0 ... 50 °C Ambient humidity < 95 % rH Storage temperature -30 ... 70 °C Transport temperature -30 ... 70 °C Pipe sizes DN8, DN15, DN20, DN25 5/6
RkJQdWJsaXNoZXIy MjgzNzA=