HM 141 Hydrographs After Precipitation Didactic Equipment Vocational Training Equipment Fluid Mechanics Lab Equipment
Correlations between precipitation and seepage; various drainage methods Features - effect of precipitation on soils - drainage of the soil either through drainage pipe or drain chamber with screen - recording of hydrographs - influence of rainwater retention basin on the hydrograph - precipitation time, lag time and measurement time can be adjusted via separate timers Learning objectives/experiments - effect of precipitation of varying duration or intensity on soils with different saturation - record hydrographs after precipitation - compare natural drainage with drainage via drainage pipe - influence of rainwater retention basin on the hydrograph Specification [1] investigation of the effect of precipitation on soils [2] stainless steel experimental tank with transparent splash guard [3] precipitation device with two nozzles, adjustable precipitation area and quantity [4] precipitation time can be adjusted via solenoid valve with timer [5] distribution to 17 chambers by timer [6] mobile sled carriage distributes draining water to 17 chambers in the measuring tank [7] water drain either via removable drain chamber with fine-mesh screen or via drainage pipe [8] separate flushing connection for pipelines [9] drip pans as rainwater retention basins [10] rotameter (inlet), indicator of precipitation time, lag time and measurement time Technical data Experimental section - volume: 1300x600x200mm - max. sand height: 185mm Precipitation device - 2 nozzles, individually adjustable - flow rate: 1...6,7L/min, square spray pattern - precipitation: max. 320L/h Measuring tank with 17 chambers - volume: 17x0,9L Timers - precipitation: max. 99min59s - lag time until start of measurements: max. 99min59s - measurement time per chamber: max. 99min59s 4 drip pans: 305x215x55mm Steel scale: 200mm Measuring ranges - flow rate: 30...320L/h 230V, 50Hz, 1 phase 230V, 60Hz, 1 phase; 120V, 60Hz, 1 phase UL/CSA optional LxWxH: 1600x1000x1475mm Weight: approx. 190kg
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