|WORLD METEOROLOGICAL ORGANIZATION||
|Explanation of the criteria for classification and numbering of components||
|Explanation of the dates on the component's description|
ACOUSTIC WATER LEVEL GAUGE
1. Purpose and objectives
water level without contacting water's surface.
Water Level Gauge is a device for continuous measurement of water
level for rivers and dams. As the gauge utilises a
transmitter-receiver that operates on an ultrasonic wave reflection
method, it can measure water level without actually coming into
contact with the water.
A pole or beam is needed to install the gauge.
is within 1cm and the range is 13.5m.
Water level on a digital data display, as a digital signal (B.C.D.)
or an analogue signal (0V-5V DC and 4mA-20mA DC).
5. Operational requirements and restrictions
transmitter-receiver should be at 1.5m from the surface when
the water is at its highest possible level and at a maximum of
15m when water level is at its lowest possible. Avoid exposed
objects near the beam that might give spurious reflections.
6. Form of presentation
and instrument specifications are available.
7. Operational experience
About 120 sets
were installed in Japan in 1999.
8. Originator and technical support
10. Conditions on use
|(First entered: 01 FEB 93||
Last updated: 21 APR 00)