UGT Run-Off Measuring System

The run-off measuring system consists of various components that can be used in a modular fashion. The measuring system is used to record and sample surface runoff and the erosion loads it contains. The basic equipment is the autosampler for surface run-off, consisting of an erosion vessel, tipping counter and data logger, among other things. Other components are the measuring plot limitation, the collecting gutter, the divider system, hoses and a bypass tipping counter. There are no bottlenecks in the entire system that could clog, cause backwater or slow down the flow rate. The erosion material can thus be unhindered transported in the flowing water.

Measuring plot limitation, collecting gutter, and dividing system

The measuring plot limitation is a system for the medium and long-term demarcation of a 30 m² (3 m x 10 m) measurement area for collecting surface run-off. In combination with the collecting gutter and the dividing system, the surface run-off can be collected from the plot area and routed via the dividing system to the tipping counters to measure the runoff.
The collecting gutter consists of a stainless-steel angle construction that is firmly anchored in the ground. The collecting gutter is buried in such a way that no sediment load can accumulate. The cover of the collecting gutter prevents rainwater from entering the collecting gutter.
A separation system is required to limit the flow rate at the inlet of the autosampler for surface run-off. The collecting gutter directs the run-off water to the dividing system. The dividing system contains a perforated plate to keep out large foreign bodies and prevent animals from entering. The dividing system has two outlets at two different heights for connecting tipping counters. The lower connection leads to the tipping counter of the autosampler for surface run-off. When the capacity of the tipping counter is reached, the water flows out via the upper outlet of the dividing system to the bypass tipping counter. The data from both tipping counters is recorded by the data logger.