Sigma 980 Operating And Maintenance Manual page 112

Appendix A
Figure 50 Weir
Submerged
Probe
FLOW
Page 110
Working with Primary Devices
H
Maximum
Head Height
2H
Minimum
Crest
Height
Submerged
Probe
Draw down
Head
Measurement
Point
FLOW
4H
Minimum Distance from
Weir Plate
Crest
Weir Plate