Milltronics CVCC Instrukcja Obsługi Strona 71

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RECTANGULAR WEIR (CONTRACTED), P3 = 8
‘U’ parameters required *
U0 = crest width b
*
obtain from manufacturer’s specifications.
**
calculated by OCM-3. May be viewed by accessing ‘U’ parameter.
Reference
ABSOLUTE CALCULATION, P4 = 0
¤
For flows that can be calculated by the equation:
q = K x (b - 0.2h) x h
1.5
where : q = flow rate
h = head
K = constant
RATIOMETRIC CALCULATION, P4 = 1
¤
For flows that can be calculated by the equation:
q = q
cal
x (b - 0.2h)/(b - 0.2h
cal
) x (h/h
cal
)
2.5
where : q = flow rate
q
cal
= flow rate at maximum head
h = head
h
cal
= maximum head
¤
Refer to Operation \ Flow Calculation.
7ML19985AB01 OCM III 72
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