Endress+Hauser Prosonic S FMU90, Description, Page: 190 / 216

Appendix
190
13.1.7 Constricted rectangular weirs
L00-FMU90xxx-05-00-00-xx-009
!
Note!
In the "width" parameter, the width of the weir can be adjusted. The corresponding change of the
flow curve is automatically performed by the Prosonic S.
!
Note!
After selecting the type of weir, Q
max
can be adjusted to the flow conditions. Q
max
defines the flow
at which the output current is 20 mA.
Type of weir B [mm] H
max
[mm] Q
max
[m
3
/h]
RectWThr 2H 200 120 51,18
RectWThr 3H 300 150 108,4
RectWThr 4H 400 240 289,5
RectWThr 5H 500 270 434,6
RectWThr 6H 600 300 613,3
RectWThr 8H 800 450 1493
RectWThr T0 1000 600 2861
RectWThr T5 1500 725 6061
RectWThr 2T 2000 1013 13352
k k
45°
BD
≥
3 H
max
≥
2 H
max
H
max
B
≥
2 H
max
k 3 mm
≈