Med-Hycos - the Data
BUBBLE LEVEL RECORDER
The water level recorder using bubble
system has been designed for the measurement and recording of water levels
at sites where the use of conventional float-operated recorders is not
Data recording on strip chart and/or
Depending on the height of water level (h) above the point of orifice, a gas pressure is produced in the measuring tube of a magnitude equal to the hydrostatic pressure (p) :
p = r . h (r = specific gravity of water).
Different measuring ranges are possible,
mainly : 0-2.5 m ; 0-5 m ; 0-10 m ; 0-20 m. The accuracy is of about 1
cm for 10 m measuring range.
CONDITIONS OF USE
Generally the permissible flow velocity
at the bubbling orifice is of 3 m.s-1 , and the maximum rate of water level
change of 25 cm/mn.
Measuring range : 0 to 10 m.(with