Head and Flowrate Breakpoint
When the primary measuring device (P600) does not fit one of the
standard characterizations, it may be programmed for one of two
breakpoint characterizations:
» P600 = 4 : linear
» P600 = 5 : curved
Select the characterization which most closely fits the flow characteristics
of the primary measuring element.
Typical PMD for Breakpoint Characterization
Trapezoidal Flume
» similar to Parshall Flume except that the floor is flat
bottomed and the walls are sloped.
Dual Range (nested) Parshall Flume
» two flumes, a larger on top of the smaller, in order to
handle a larger range of flows.
Weir Profiles
plan
front
compound
Poebing
approximate
exponential
contracted
rectangular
PL-507 116
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