9
Manual
US 3.10 713 FLOW CONVERTER 1905 - SW 833062
Measuring distances for Palmer & Bowlus flumes
Diameter D:
Distance L:
Diameter D:
Distance L:
4”
2”
18”
9”
6”
3”
21” 10.5”
8”
4”
24”
12”
10”
5”
27”
13.5”
12”
6”
30”
15”
15”
7”
Measuring distances for rectangular weirs
- with and without side contraction
The distance L should be between 4 to 5 times the nomi-
nal width b.
Measuring distances for V-notch weirs
The distance L should be between 3 to 4 times the
height h of the notch.
4: Mount the sensor in the correct upstream distance
from the head in the flume / weir.
The distance depends on the dimension and type
of flume / weir.
Measuring distances for Parshall flumes
Throat width b:
Distance L:
Throat width b: Distance L:
1”
10”
36”
43”
2”
11”
48”
47”
3”
12”
60”
51”
6”
16”
72”
56”
9”
23”
84”
59”
12”
36”
96”
63”
18”
37.5”
120”
72”
24”
39”
144”
80”
(L = D/2)
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