Span Master Manual Cableway for ADCP Boats
The Hydrological Services Span Master Travellerway is our latest innovationto perform water discharge measurement using ADCP technology. The unit was designed to aid in waterdischarge measurement where simple cableway installation is required to drive the ADCP across the river and back.
The Span Master consists of a manual winch fixed to the operating side post. The winch is manually operated at adesired speed by the operator.
The Span Master is used in conjunction with an ADCP to measure water profile across the river. A 5 kg stabilizing weight can be used to stabilize the ADCP in order to keep it from tilting nose up in fastflow or to avoid it from flipping upside down when water current is turbulent.
The manual winch on the operating side is used to drive the ADCP from one side of the river to the otherside. Two methods can be used when using the Span Master and the ADCP. The first method is to performpoint measurement at different sections of the river. The second method is to drive the ADCP at a constantspeed slower than the water speed so that the ADCP can measure the water profile across the stream crosssection.
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