User's Manual

7ML19985KB01 SITRANS LR560 (mA/HART) – INSTRUCTION MANUAL Page 89
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Parameters
2.7.3.2. 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 Fail-safe (LOE)
timer. When Confidence (2.7.6.1.) exceeds Echo Threshold (2.7.3.2.), the
echo is accepted as a valid echo and is evaluated.
Use this feature when an incorrect material level is reported.
2.7.3.3. Position Detect
Defines where on the echo the distance measurement is determined. See
Shaper Mode (2.8.4.) on page 126 for more details.
If the vessel bottom is being reported as the level instead of the actual
material level (at low conditions), we recommend setting Position to Hybrid
and using it in combination with CLEF Range (2.7.3.4.).
Values
Range: 0 to 99
Default: 5
Related
Parameters
Timer (2.5.2.)
Note: Selecting Steel or Concrete vessel type in the Quick Start wizard
changes the setting for Position Detect (2.7.3.3.) to Rising Edge.
Options
* RISING (yields highest stability on sloped targets)
CENTER (yields higher accuracy on flat, non-sloped tar-
gets)
HYBRID (CENTER and CLEF)
CLEF (Constrained Leading Edge Fit)
Related
Parameters
CLEF Range (2.7.3.4.)