Clef Range; Echo Threshold - Siemens 7ML5431 Operating Instructions Manual

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A.2.3

CLEF Range

CLEF Range (2.8.4.4.) is referenced from Low Calibration Point (process empty level ).
When the Hybrid algorithm is selected in Position Detect (2.8.4.2.), the CLEF algorithm will
be applied up to the limit of CLEF Range. Above this limit the Center algorithm will be
applied.
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A.2.4

Echo Threshold

Confidence (2.8.6.1.) describes the quality of an echo. Higher values represent higher
quality. Echo Threshold (2.8.4.3.) defines the minimum confidence value required for an
echo to be accepted as valid and evaluated.
SITRANS LR250 with mA/HART
Operating Instructions, 10/2019, A5E32220602-AG
default TVT
material echo selected
vessel bottom echo
echo marker
CLEF Range
(Center algorithm applied)
High Calibration Point (process full level)
Sensor reference point
Low Calibration Point (process empty level )
Appendix A: Technical reference
A.2 Echo Processing
237