MR-HM 145 Advanced hydrological investigations educational equipment lab equipment mechanical training equipment Description HM 145 can be used to study seepage and groundwater flows after precipitation. Furthermore, sediment transport in courses of rivers is also presented in the context of flow obstacles. Variable precipitation density and areas and different groundwater supply and drain possibilities allow a wide variety of experiments.
HM 145 contains a closed water circuit with storage tank and pump. The core element is a sand-filled, stainless steel experiment tank with inclination adjustment. To study precipitation, a precipitation device is available, which is equipped with a timer to define the times of precipitation. The precipitation device consists of two groups of four nozzles. Water can flow in (groundwater) or out (drainage) via two chambers on the side. The experiment tank is separated from the chambers by fine mesh screens. To study the lowering of groundwater, two wells with open seam tubes are available. By means of a small weir in the supply and drain, a course of a river can be generated. Different water levels can be generated. Water supply and water drain can be opened and closed, thus allowing a wide variety of experimental conditions. In addition, three different models make it possible to study the flow around obstacles and the resulting sediment transport in the river bed.
At the bottom of the experiment tank there are measuring connections to detect groundwater levels, which are displayed on 19 tube manometers. Two flow meters with different measuring ranges indicate the supply to the experiment tank. A measuring tank at the drain contains a measuring weir for determining the water level and a force sensor for determining the amount of sediment.
The measured values are indicated at the trainer. At the same time, the measured values can also be transmitted directly to a PC via USB. The data acquisition software is included.
Technical details Specification investigation of precipitation-discharge relationships, storage capacity of soils, seepage flows, groundwater flows and sediment transport closed water circuit inclinable stainless steel experiment tank contains 19 measuring connections to detect groundwater levels, transparent splash guard and screens for separating the chambers 2 wells with open seam tubes in the experiment tank adjustable precipitation device precipitation time can be adjusted via timer water supplies and drains can be selected individually transparent measuring tank (flow) and force sensor (determining the amount of sediment) 3 models for pillars: round, square, oval instruments: tube manometers (groundwater), flow meter (2x at the supply) and measuring weir in the measuring tank (1x at the drain) software for data acquisition via USB under Windows 7, 8.1, 10 Technical data Experiment tank, inclination adjustment: -1…5% area: 2x1m2, depth: 0,2m, max. sand filling: 0,3m3 Precipitation device 8 nozzles, switchable in 4 groups of 2 nozzles flow rate: 1…4,7L/min, square spray pattern Pump power consumption: 0,55kW max. flow rate: 1500L/h Storage tank, stainless steel: 220L
