Siemens SITRANS LUT400 - Characterization Chart; Example Chart (with 15 of Possible 32 Level and Volume Breakpoints Defined)

To Next Page

To Previous Page

General Operation

7.5 Volume

SITRANS LUT400

Operating Instructions, 07/2019, A5E33329501-AC

7.5.3 Characterization chart

If you cannot use a pre-defined vessel, then use one of the universal vessel shapes and

program the characterization curve.

1. Plot a volume to height chart. Usually a vessel supplier will provide this chart. However, if

you have a custom-built vessel, then you will need access to complete drawings of the

well or accurate measurements.

2. Enter the curve values from this chart into level and volume breakpoint tables (see Table

1-8 (2.6.7.) (Page 182)).

Note

breakpoints are entered via LUI, then an upload is performed via PDM, a second

upload through PDM may be necessary to transfer the breakpoint values.

3. Ensure extra points are added around sharp transitions in the vessel volume (for

example: steps in a well wall).

Note

The end points in the curve are 0,0 (fixed) and the point defined by Maximum Level and

Maximum Volume.

7.5.3.1 Example chart (with 15 of possible 32 Level and Volume breakpoints defined):

Other manuals for Siemens SITRANS LUT400