Technical Specifications

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