Using Auto False Echo Suppression; Level Application Example - Siemens Sitrans PROBE LU Instruction Manual

Calibration – steps 1 to 7
1. Open the menu Device – Sensor Calibration and select the button Dry Calibration.
(Click on Additional Information to see the schematic showing the PROFIBUS
parameters.)
2. Enter the new value for Low Calibration Point (default units are meters).
3. Enter the corresponding value for Low Level Point in percent (default is 0).
4. Enter the new value for High Calibration Point (default units are meters).
5. Enter the corresponding value for High Level Point in percent (default is 100).
6. Click on Transfer.
7. SITRANS Probe LU is now ready to operate.

Using Auto False Echo Suppression

If SITRANS Probe LU displays a false high level, or the reading is fluctuating between the
correct level and a false high level, you can use the Auto False Echo Suppression
parameters to prevent false echo detection. See

Level application example

The Primary Value (PV) can be level or volume
PV will be the same as the Secondary Value 1 (SV1). SV1 is the sum of level plus level
offset (if any).
Far Range
1.
For details, see
7ML19985JB02 SITRANS Probe LU (PROFIBUS PA) – INSTRUCTION MANUAL
Level Units:
Near
Range
High Level
Point = 100%
Sensor Value
Level
Low Level
Point = 0%
Level Offset
(if any)
How the LTB works:
TVT setup
on page 93 for instructions.
1
. If volume conversion is not selected, the
Sensor Units:
Sensor Offset
High
Calibration
Point = 3 m
Secondary Value 1
on page 57.
Low
Calibration
Point = 5 m
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