Emerson Rosemount 3308, Reference Manual

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Reference Manual
00809-XXXX-4811, Rev AA
February 2012
Rosemount 3308
5-6
PRELIMINARY
Volume Configuration
For volume calculations you can choose one of the standard tank shapes or
the strapping option. Choose None if volume calculation is not used.
Tank Type
You can choose one of the following options:
• Strap table
• Vertical Cylinder
• Horizontal Cylinder
• Vertical Bullet
• Horizontal Bullet
• Sphere
• None
Strapping Table
Use a strapping table if a standard tank type does not provide sufficient
accuracy. Use most of the strapping points in regions where the tank shape is
non-linear. A maximum of 10 points can be added to the strapping table.
Figure 5-5. Strapping points
Actual tank bottom may look like this.
Using only 3 strapping points results in a level-to-volume profile
that is more angular than the actual shape.
Using 6 of the points at the bottom of the tank yields a
level-to-volume profile that is similar to the actual tank bottom.