Navigating Through Echoes; Recording A Waveform - ABB LWT300 series User Manual

Navigating through echoes

Once you have accessed the waveform display, you can browse through and select various echoes, and
see their respective distances.
Obtaining the distance for the current level
The current distance displays the measured distance between the reference point and the level. This
feature allows you to select another echo as the level echo (previous or next) and confirm that the
measured distance matches the real distance.
To select the current distance:
1 Select Diagnostics >Waveform > Level Echo Selection > Current Distance.
The distance of the current level echo appears.
2 Press Back.
Selecting another echo
To select the previous or next echo:
1 Select Diagnostics > Waveform > Level Echo Selection > Select Previous Echo or Select Next Echo.
2 Press OK. The chosen echo is selected.
3 Press Back.
4 Select Current Distance to verify that this is the echo that you wanted to select. If not, repeat steps 1
to 3 until you have selected the echo that you want.
5 Once you have selected the echo that you want, select Confirm Current Echo and press OK.

Recording a waveform

The recorded waveform can be used for comparison purposes, and review using DTM/FIM tools.
To record the waveform:
1 Select Diagnostics > Waveform > Record Waveform.
2 Press OK. The waveform is recorded.
72
User Guide