User's Manual

7ML19985KB01 SITRANS LR560 (mA/HART) – INSTRUCTION MANUAL Page 125
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D: Technical Reference
Example: CLEF off: Position set to Hybrid
Example: CLEF enabled
CLEF Range (2.7.3.4.)
Determines the level below which the CLEF algorithm will be used. Above this level, the
Center algorithm is used when Hybrid is selected in Position Detect (2.7.3.3.).
CLEF Range is referenced from Far Range.
Echo Threshold (2.7.3.2.)
Confidence (2.7.6.1.) describes the quality of an echo. Higher values represent higher
quality. Echo Threshold defines the minimum confidence value required for an echo to be
accepted as valid and evaluated.
default TVT
vessel
bottom
echo
selected
material
echo
echo marker
Vessel height: 1.5 m; CLEF range set to 0 (Center algorithm gives the same result.)
default TVT
vessel
bottom
echo
material
echo
selected
echo marker
Vessel height: 1.5 m; CLEF range set to 0.5 m