Siemens OCM III, Instruction Manual, Page: 75 / 112

PALMER-BOWLUS FLUME *, P3 = 10
‘U’ parameters required **
U0 = maximum flume width, h
max
*
typically those manufactured by Warminster or Plasti-Fab.
**
obtain from manufacturer’s specifications.
Reference
RATIOMETRIC CALCULATION, P4 = 1
¤
For flows that can be calculated by the equation:
q = q
cal
x f(h/h
max)
/ f(h
cal
/h
max
)
where : q = flow rate
q
cal
= flow rate at maximum head
h = head
h
cal
= maximum head
f(h/h
max
) is determined by polynomial synthesis
¤
Refer to Operation \ Flow Calculation.
7ML19985AB01 OCM III 76