Siemens sitrans PROBE LU - Page 68

Page 62 SITRANS Probe LU (HART) – OPERATING INSTRUCTIONS A5E32337695
Parameters
P838 Auto False-Echo Suppression Distance
Defines the range of Auto False-Echo Suppression (P837) to use for ignoring false
echoes. (Units are defined in P005.)
Determine the actual distance from the transducer face to the material surface. Subtract
0.5 m from this distance, and enter the result.
Set Up:
1. Perform this function when the vessel is empty or nearly empty.
2. Determine actual distance from transducer face to material level.
3. Select P838 and key in [distance to material level minus 0.5 m].
4. Press ENTER .
5. Select P837.
6. Press 2 and then press ENTER . P837 will revert to 1 (use Learned TVT)
automatically after a few seconds.
Values
Range
(depends on model)
Maximum range:
0.000 to 6.000 m (20 ft) or
0.000 to 12 m (40 ft)
Default 1.000 m (3.28 ft)
Display after Auto False Echo Suppression
TVT curve
(learned)
material
level
false
echo
Distance (meters)
Level (db)