Rainfall Hydrographs Demonstrator Model FM 69

Specifications 

• A Self- contained facility for study of flow through permeable media.
• Tank - Length: 1.2m - Width: 0.6m - Height: 0.2m -
• Flow meter range: 0.4-4.4 litres/min
• Runoff Collector: 17 X 0.5 l compartments.
• Overall dimensions - Length: 1.58m - Width: 0.9m - Height: 1.05m

Ordering Specifications  A unit designed to obtain catchment rainfall and runoff values as functions of time.  Comprising a bench- or floor-standing tank with two overhead square pattern spray nozzles  supplying water via a flow control valve, flow meter and solenoid valve.  A motor driven traversing vessel with seventeen compartments is moved by timer beneath the  outlet at a preselected rate to collect the runoff and provide an immediate display of the  hydrograph.  The tank is 1.2m in length x 0.8m wide x 0.2m deep.  The flow range is 0.4 to 4.4 litres/minute.  A comprehensive user manual is included in the supply. Experiment Capabilities  Storm hydrographs from single or multiple storms  Storm hydrograph from a previously saturated catchment  Storm runoff from an impermeable catchment  Effect of a moving storm on flood hydrograph  Effect of reservoir storage on flood hydrograph  Effect of land drains on flood hydrograph Required Services

• Hydraulic bench or cold water supply (4 liters/min required)
• Drain
• Electrical supply: 220-240V/1ph/50Hz
• 1m3 washed, well graded gravel, range 2.0 - 5.0mm