Parameters P-40 through P-50 are used specifically for OCM applications. Refer
to section VI.
P-40 primary measuring device
enter option 1 = exponential (F)
2 = Palmer-Bowlus
3 = H-flume
4 = universal head vs flow
(refer to Section VI, Volume Application)
P-41 flowrate time units
enter option 1 = per second
2 = per minute
3 = per hour
4 = per day (F)
P-42 OCM exponent
exponent for primary measuring devices, P-40 =1 where Q = KH
x
.
Obtain from manufacturer’s specifications.
enter “required number” (F=1.550)
P-43 flume dimension
enter “D”, flume size (P-40 = 2 or 3) in units of P-1 (F=1.000)
P-44 spare
P-45 maximum head
this is the head corresponding to the max. flowrate. This parameter is
identical to P-4, span. A change to either parameter will simultaneously
change the other. (F=10.00 m)
Palmer Bowlus
D = pipe or sewer dia.
D
D
H Flume
P-40 = 3
P-40 = 2
PL-399 7 – 8
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