VEGA VEGAMET 514… D - Manual (Page 31)

VEGAMET 514… D 31
Rectangular overflow without contraction
With sharp overflow edge and throat
Set-up, parameter adjustment
Values for Q
max
B Q
max
h
max
Q
min
h
min
in mm in m 3 /h in mm in m 3 /h in mm
200 52,3 120 18,5 60
300 109,6 150 27,7 60
400 295,8 240 37,0 60
500 441,2 270 46,2 60
600 620 300 55,5 60
800 1519 450 73,9 60
1000 2923 600 92,4 60
1500 6128 750 138,7 60
2000 13535 1050 184,9 60
3000 34666 1500 277,3 60
Calculation of Q
max
The following formula can be used for calculation of
the actual flow of liquid levels < h
max
… h
min
.
Presumed values for a calculation example
B = 0,4 m
K = 6290
h = 0,13 m
Q
max
= B x K x h 1,5
= 0,4 x 6290 x 0,13 1,5
= 117,9 m 3 /h
Rectangular flume (V-Notch)
With sharp overflow edge
Values for Q
max
α K Q
max
h
max
Q
min
h
min
in ° (Factor) in m 3 /h in mm in m 3 /h in mm
90 4966 1385,0 600 4,4 60
60 2869 800,0 600 2,5 60
45 2056 573,3 600 1,8 60
30 1334 372,0 600 1,2 60
22,5 989 275,8 600 0,87 60
Calculation of Q
max
The following formula can be used for calculation of
the actual flow of liquid levels < h
max
… h
min
.
Presumed values for a calculation example
α = 45 °
K = 2056 (derived from α )
h = 0,33 m
Q
max
= K x h 2,5
= 2056 x 0,33 2,5
= 128,6 m 3 /h
B
h
max
K = 6290
h
max
α
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