Siemens SITRANS LR560 Operating Instructions Manual page 107

After Auto False Echo
Suppression
To use Auto False Echo Suppression via AMS Device Manager:
Note value calculated in step b) and see
To set Auto False Echo Suppression via local operation:
See
2.4.8.2.
Note: Note the distance to material level when Auto False Echo learns
the environment. Set Auto False Echo Suppression Range to a shorter
distance to avoid the material echo being screened out.
Defines the endpoint of the Learned TVT distance. Units are defined in Unit
(2.3.1.)
Values
2.4.8.3.
Defines how high the TVT (Time Varying Threshold) curve is placed above
the noise floor of the echo profile, as a percentage of the difference between
the peak of the largest echo in the profile and the noise floor. (See Before
Auto False Echo Suppression on page 100 for an illustration.)
Values
When SITRANS LR560 is located in the center of the vessel, the TVT hover
level may be lowered to increase the confidence level of the largest echo.
7ML19985LY01
false echo
AFES (Auto False Echo Suppression) Wizard1.2.
Auto False Echo Suppression Range
Range: 0.00 to 45.00 m (40 m device)
Default: 1.00 m
Hover Level
Range: 0 to 100%
Default: 40%
SITRANS LR560 (FF) – INSTRUCTION MANUAL
learned TVT
Auto False Echo
Suppression Range
TVT Setup
or 0.00 to 105.00 m (100 m device)
material level
default
TVT
echo marker
on page 54.
on page 87.
Page 101