User's Manual

Page 96 SITRANS LR560 (FF) – INSTRUCTION MANUAL 7ML19985LY01
mmmmm
Parameters
2.4.5.2. Position Detect
Defines where on the echo the distance measurement is determined. (See
Position Detect (2.4.5.2.) on page 139 for more detail.)
If the vessel bottom is being reported as the level instead of the actual
material level (at low level conditions), we recommend setting Position
Detect to Hybrid and using it in combination with CLEF Range (2.4.5.4.).
2.4.5.3. Echo Threshold
Sets the minimum echo confidence that the echo must meet in order to
prevent a Loss of Echo condition and the expiration of the LOE timer. When
Confidence (2.4.7.1.) exceeds Echo Threshold (2.4.5.3.), the echo is
accepted as a valid echo and is evaluated.
Use this feature when an incorrect material level is reported.
Note: Selecting Steel or Concrete vessel type in the Quick Start wizard
changes the setting for Position Detect (2.4.5.2.) to Rising Edge.
Options
Rising Edge (yields highest stability on sloped
targets)
*
Center (yields higher accuracy on flat, non-
sloped targets)
Hybrid (Center and CLEF)
CLEF (Constrained Leading Edge Fit)
Related
parameters
CLEF Range (2.4.5.4.)
Values
Range: 0 to 99
Default: 5
Related
Parameters
Loss of Echo (LOE) Timer (2.3.4.)