Sigma 980 Operating And Maintenance Manual page 115

Appendix A
Figure 53 Leopold-Lagco Flume
Submerged Probe
(Preferred Head Measurement Point)
FLOW
Top View
Upper Transition
Throat Lower Transition
Preferred Head Measurement Point
Small jump should occur here.
Water Surface
FLOW
Elevation View End View
"D"
Conduit Diameter
Downstream Depth
2
Upstream Depth
Page 113
Working with Primary Devices