Siemens HydroRanger 200 HMI - Alarms

Operating
7.7 Volume
HydroRanger 200 HMI
Operating Instructions, 06/2018, A5E36281317-AC
111
7.7.3
Characterization chart
If you cannot use a pre-defined tank, then use one of the universal tank shapes and program
the characterization curve.
1. Plot a volume-to-height chart. Usually, a tank supplier provides this chart. However, for
custom-built wet wells, you need to have the complete drawings of the well or its accurate
measurements.
2. Enter the curve values from this chart into the Volume tables under Table 1-8 (2.7.8.);
(Page 190)Table 9-16 (2.7.9.); (Page 191)Table 17-24 (2.7.10.); (Page 192) and Table
25-32 (2.7.11.) (Page 193)
3. Ensure extra points are added around sharp transitions in the wet well volume (for
example, as steps in the well wall).
Note
The end points in the curve are 0,0 (fixed) and the point de
fined by Span (2.2.2.) (Page 169
)
and
Maximum Volume (2.7.3.) (Page 188)
Example