Relationship between cross-sectional area traversed and flow velocity Features - investigate flow rates at different cross sectional areas - intuitive experiment execution via touch screen (HMI) - integrated router for operation and control via an end device and for screen mirroring on up to 10 end devices: PC, tablet, smartphone - network capability: access to ongoing experiments from external workstations via the local network - automatic identification of accessories via RFID technology Learning objectives/experiments - investigation of the continuity equation - demonstration of conservation of mass - identification of the influencing variables -- cross-sectional flow area -- pitch of the impellers -- bearing friction -- uniformity of flow - software specifically adapted to the accessories used -- learning module with theoretical fundamentals -- device description -- guided experiment preparation -- execution of the experiment -- graphical representation of flow rates at different cross sections -- data transfer via USB for versatile external use of measured values and screenshots e.g. evaluation in Excel -- different user levels available Specification [1] visualisation of the flow velocity [2] different cross-sectional areas determine the ratio of the flow velocity [3] two impellers with the same pitch for observation and measurement of the different flow velocities [4] speed of the impellers measured via inductive speed sensor [5] flow rate in the pipe section can be adjusted via HM 250 base module [6] automatic identification of accessories via RFID technology and use of the corresponding software [7] experiment execution and display of the measured values via touch screen (HMI) [8] network capability: access to ongoing experiments and their results from up to 10 external workstations simultaneously via the local network [9] water supplied via HM 250 base module Technical data Pipe section - inlet: Ø inner 56mm - outlet: Ø inner 40mm Inductive speed measurement - speed sensor -- switch frequency 5000Hz -- L 60mm, thread M8 - big impeller -- built-in magnet pin -- Ø outer 54mm -- pitch 60mm -- number of blades 2 -- cross section 340mm2 -- flow velocity up to approx. 0,11m/s - small impeller -- built-in magnet pin -- Ø outer 38mm -- pitch 60mm -- number of blades 2 -- cross section 200mm2 -- flow velocity up to approx. 0,22m/s Measuring ranges - indicated measuring range speed: 0...999min-1 - indicated measuring range flow rate: 0...15L/min LxWxH: 650x260x295mm Weight: approx. 6,5kg
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