Features:
Designed to obtain catchment rainfall and runoff values as functions of time.
Provided with Electronically controlled & motor-driven traversing vessels for collecting runoff.

Tesca Rainfall Hydrographs Demonstrator is designed to study rainfalls in laboratories. The unit consists of a tank filled with gravel. Water is supplied by overhead nozzles & water flow is controlled by a flow control valve. Transparent curtains are provided around the tank to avoid water spillage. To collect the runoff a measuring unit is located at one end of the tank. The measuring  unit  consists  of  a  motor-driven t r a v e r s i n g v e s s e l w i t h 1 7 s t o r a g e compartments. An electronic console controls the traversing vessel. Water collected in the vessel provides an immediate histogram of runoff as a function of time.
The  trainer  is  supplied  with  the  following accessories -
Polythene sheet for impermeable catchment
Four plastic containers for reservoir storage
Permeable pipe for tile drain
Detailed Operation & Maintenance Manual is provided along with the trainer.

Specifications:
A self contained facility for stuy of flow through permeable media.
Tank
Length: 1.2m Width : 0.6m Heigh : 0.2m
Flow meter range : 0.4 - 4.4 litres / min
Runoff collector : 17 x 0.5 compartments

Overall Dimensions
Length: 1.58m Width : 0.9m Heigh : 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 a 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 liters/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 the flood hydrograph
Effect of reservoir storage on the flood hydrograph
Effect of land drains on the flood hydrograph

Required Services:
Hydraulics bench or cold water supply (4 litres/min required Drain
Electrical supply : 220-240V/1pH/ 50Hz 1m3 washed, well graded gavel, range 2.0- 5.0mm