Connect several Flow Meters to Modbus Master S331 Modbus master input Modbus/RTU Flow meter Modbus/RTU Flow meter Modbus/RTU Flow meter RS-485 splitter RS-485 splitter RS-485 splitter 1 2 16 Flow meters can be easily integrated into a Modbus/RTU network (daisy chain) Volumetric Flow Ranges Tube Volumetric Flow Standard High-speed Inch DN Inner diameter (mm) Min Max Min Max Sm³/h Sm³/h 1¼” DN32 36 12 508 12 660 1½” DN40 41.9 18 757 18 984 2” DN50 53.1 31 1,298 31 1,687 2½” DN65 68.9 56 2,311 56 3,005 3” DN80 80.9 80 3,270 98 5,201 4” DN100 100 125 5,095 125 6,623 5” DN125 125 196 8,006 196 10,408 6” DN150 150 283 11,548 283 15,012 8” DN200 200 507 20,690 507 26,897 10” DN250 250 793 32,339 793 42,040 12” DN300 300 114,2 46,568 1,142 60,538 4/6 Mobile Power S430 powered by power bank with connection cable A553 0154. Note: power bank must be sourced locally due to shipping restrictions [USB-C, 20 V, min. 100 mA] Stated measuring ranges under following conditions: • Standard flow in air • Reference pressure: 1000 hPa • Reference Temperature: +20 °C Flow range is calculated for Air at 6 bar(g), 50 °C and 90 % humidity. Cut-off velocity: 5 m/s
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