Position Detect; Echo Threshold - Siemens SITRANS LR560 Operating Instructions Manual

2.7.3.2.
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.
Values
Related
Parameters
Use this feature when an incorrect material level is reported.
2.7.3.3.
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.
Defines where on the echo the distance measurement is determined.
Shaper Mode (2.8.4.) on page 137
Options
Related
Parameters
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
Page 96 SITRANS LR560 (mA/HART) – OPERATING INSTRUCTIONS

Echo Threshold

Range: 0 to 99
Default: 5
Timer (2.5.2.)

Position Detect

* 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)
CLEF Range (2.7.3.4.)
details.
for more
.
CLEF Range (2.7.3.4.)
See
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