46 LST300 |  COMPACT ULTRASONIC LEVEL TRANSMITTER  |  LST300–EN REV. E
Open channel flow on DTM
1  Click Configuration > Device Setup > Basic Setting.
2  Select 
Flow
 in the Operate Mode field and click Set.
3  Click Configuration > Open Channel Flow > Open Channel 
Selection.
4  Select a value from the Channel Shape box and click Apply.
The 
Triangular Notch Thin Plate Weir
 is selected here as an 
example.
5  The parameters and an image for the selected channel shape are displayed.
6  Complete the parameters and click Calculate.
7  The maximum flowrate is calculated and displayed at the top of the interface.
Note
The max flowrate calculation must be executed before the linearization table generation, to prevent an incorrect linearization 
table.