User's Manual

Parameter reference
SITRANS LR250 (PROFIBUS PA)
Operating Instructions, 01/2014, A5E32221386-AB
113
Echo Lock (2.5.8.1.)
Note
Ensure the agitator is always running while SITRANS LR250 is monitoring t
he vessel, to
avoid stationary blade detection.
Selects the measurement verification process. See
Echo Lock (2.5.8.1.)
for more details.
Options
Lock Off (no verification)
Maximum Verification (not recommended for radar)
*
Material Agitator
Total Lock (not recommended for radar)
Related parameters
Fill Rate (2.3.8.2.)
Empty rate (2.3.8.3.)
Sampling up (2.5.8.2.)
Sampling down (2.5.8.3.)
For radar applications, Material Agitator is the most often-used setting, to avoid agitator blade
detection.
Sampling Up (2.5.8.2.)
Specifies the number of consecutive echoes that must appear above the echo currently
selected, before the measurement is accepted as valid.
Values
Range:
1
to
50
Default: 5
Sampling Down (2.5.8.3.)
Specifies the number of consecutive echoes that must appear below the echo currently selected,
before the measurement is accepted as valid.
Values
Range: 1 to 50
Default: 2