Siemens SITRANS LR560 Operating Instructions Manual page 182

①
②
③
④
The device characterizes all echoes that rise above the TVT as potential good echoes. Each
peak is assigned a rating based on its strength, area, height above the TVT, and reliability,
amongst other characteristics.
ALGORITHM (2.7.3.1) (Page 122)
The true echo is selected based on the setting for the Echo selection algorithm. For a list of
options, see ALGORITHM (2.7.3.1) (Page 122).
POSITION DETECT (2.7.3.3) (Page 122)
The echo position detection algorithm determines which point on the echo will be used to
calculate the precise time of flight, and calculates the range using the calibrated propagation
velocity. The following options are available:
Rising: Uses rising edge of the echo.
Center: Uses center of the echo.
Hybrid: Uses the Center algorithm for the top part of the vessel, and the CLEF algorithm for the
part nearest the vessel bottom, according to the setting for CLEF range.
SITRANS LR560 (mA/HART)
Operating Instructions, 06/2017, A5E34647946-AD
default TVT
echo profile
material level
echo marker
Technical reference
A.3 Echo processing
181