ABB LWT300 series User Manual page 57

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Figure 36 Actual level vs. linearization table points
point 3
point 2
point 1
point 0
If Figure 36 was translated in actual values, it could be put in a table as such:
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Table 1
Level vs. Volume in linearization feature
Linearization point
0
1
2
3
As you can see, the level-to-volume conversion does not progress in a linear fashion because of the
irregular shape of the vessel. By creating a linearization table with proper values, this function allows to
compensate for the irregular shape of the vessel.
In LWT instruments, there is an order in which to perform operations and make the feature functional:
• Access the function.
• Set the linearization table.
• Activate the function.
All these operations are performed from the Device Setup menu.
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Figure 37 The Device Setup menu
50 m
15 m
10 m
0 m
Level (m)
0
10
15
50
Associated volume (m³)
0
100
300
1500
Configuring the instrument
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