Siemens Sitrans Probe LR Operating Instructions Manual page 63

P711 Echo Lock
Ensure the agitator is always running while SITRANS Probe LR is monitoring the
Note:
vessel, to avoid stationary blade detection.
Use this feature to select the measurement verification process.
Values
Related parameters
If a material agitator or mixer is used in the monitored vessel, set Echo Lock for Maximum
Verification or Material Agitator, to avoid agitator blade detection.
• When Maximum Verification or Material Agitator is selected, a new measurement
outside the Echo Lock Window (P713) must meet the sampling criterion (P712).
• When Total Lock is selected, Echo Lock Window (P713) is pre-set to 0.
SITRANS Probe LR continuously searches for the best echo according to the algorithm
chosen (P820). If the selected echo is within the window, the window is then centered
about the echo. If not, the window widens with each successive shot until the selected
echo is within the window. The window then returns to its normal width.
When Echo Lock is Off, SITRANS Probe LR responds immediately to a new measurement,
as restricted by the Maximum Fill / Empty Rate (P700 / P701). However, measurement
reliability is affected.
7ML19985HR02
0
Off
1
Maximum Verification
2 *
Material Agitator
3
Total Lock
P700 Maximum Fill Rate
P701 Maximum Empty Rate
P712 Echo Lock Sampling
P713 Echo Lock Window
P820 Algorithm
SITRANS Probe LR – INSTRUCTION MANUAL Page 57