LST300 | COMPACT ULTRASONIC LEVEL TRANSMITTER | LST300–EN REV. E
41
True Echo Detection
Accessing the True Echo Detection menu
1 Log on to the LST300 at the Standard or Advanced level.
2 Select Diagnostics from the main menu.
3 Select True Echo Detection from the “Diagnostics”
submenu.
Configuring True Echo Detection
1 Install LST300 following the instructions in chapter 2
“Mounting”. Avoid as many obstructions as possible and
ensure the transmitter has clear line of sight to the target
liquid surface.
IMPORTANT (NOTE)
The best way to ensure the correct echo is measured is a good
installation with clear line of sight. The True Echo Filtering
function is used optimally when obstructions cannot easily be
avoided, such as submerged pumps and agitators.
2 Ensure the tank is empty enough for all obstructions to be
visible. Any obstructions that are submerged cannot be
detected.
3 Navigate to the “True Echo Detection” menu, as explained in
section “Accessing the True Echo Detection menu”.
4 Select Start Tank Profiling from the “True Echo Detection”
submenu.
5 Select OK to start Tank Profiling.
IMPORTANT (NOTE)
Tank profiling may take up to 2 minutes to complete. During
this time no measurement values are used as output.
6 After two minutes, select Tank Profiling Status to check
whether the Tank Profiling is complete. The status should be
Finish
.
7 Navigate to the signal waveform display as explained in
section “Accessing the waveform display”.
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