Siemens HydroRanger 200 Bedienerhandbuch PDF herunterladen (Seite 230)

Page 216 HydroRanger 200 – INSTRUCTION MANUAL 7ML19981FC01

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Appendix B: Tech Reference

Enter a Head Breakpoint at each point where the head/flow curve bends sharply (2

minimum). For combination curves (mostly linear but include 1 or more arcs), enter

numerous breakpoints along the arc, for best flow calculation accuracy.

Universal, Curved

This calculation creates a cubic spline approximation of the head/flow curve, providing

best results if the curve is non-linear, and there are no sharp angles.

Select at least enough breakpoints from the curve to satisfy the following:

• 2 breakpoints very near the minimum head

• 1 breakpoint at the tangent points of each arc

• 1 breakpoint at each arc apex

• 2 breakpoints very near the maximum head

For combination curves, enter at least two breakpoints immediately before and after any

sharp angle (as well as one breakpoint exactly at the angle) on the curve. For more

information, go to

Typical Flow Characterization

on page 76.

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Siemens HydroRanger 200 Bedienerhandbuch Seite 230