FIXED EFFLUMETERS

FIXED EFFLUMETERS

EFFLUMETRES UNITS FOR FREE-SURFACE FLOW MEASUREMENT IN OUTFALLS AND CANALS

-FULL SCALE CALIBRATION IN OUR LABORATORY
-LITTLE SPACE REQUIRED
-EASY TO INSTALL
-RUGGED DESIGN,NEEDS NO ADJUSTEMENT
-AVAILABLE IN REINFORCED POLYESTER OR STAINLESS STEEL
-WIDE DISCHARGE RANGE : FROM 0.5 L/S UP TO 13 M3/H
-VENTURI FLUMES WITH A LIGHT WEIR FOR LOW FLOW MEASUREMENT

VENTURI FLUMES
-discharge range : 0.5 l/s to 7.4 m3/s (26 500 m3/h)
-adapted to heavily sediment-laden waters

GAUGING WEIRS
-discharge range : 2 l/s to 12 m3/s (43 000 m3/h)
-adapted tolightly sediment-laden waters
-adapted to canals of greater width
-adapted to small level drops

CONTRAFLUX
-discharge range : 5 l/s to 1.73 m3/s (6 300 m3/h)
-adapted for measuring free-surface outflows and particularly polluted effluents incylinndrical (or ovoid) pipes
  • Details

    HYDROLOGIC Efflumetres are "contraction devices" designed for use on the bottom or sides of a channel which convert streaming flow at the control section into shooting flow with the result that the water level upstream of the restriction section is a known increased function of the discharge.
    Discharge can be determined by either of the following methods :
    -by a direct level-scale reading and application of a head/discharge calibration curve
    -by use of separate instrumention, usually operating with a bubbler system.
    Accuracy of our instruments is :
    -3% for discharges from 5 to 15%
    -1.5% for discharges from 15 to 100%