Set-up, parameter adjustment – VEGA VEGAMET 514… D User 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
>>