Siemens Sitrans LR250 Operating Instructions Manual page 57

Echo profile data logging
You can store up to 60 profiles at a selected interval (maximum 60 minutes).
Inside Echo Profile Utilities, in the Echo Profile Time Based Storage window:
• Enter the desired interval between stored profiles.
• Enter the desired number of profiles to be stored (maximum 60).
• Click on Start. A message appears warning of the time delay and warning that all
previous saved profiles will be overwritten. Click on OK to proceed. The new profiles
will be saved with their date and time.
Click on the tab View Saved Echo Profiles to view the stored profiles
TVT Shaper
Note: Double click on each axis to see the Xscale and Data Scale values. Right-click or
Left-click on the axis and drag to reposition the scale.
This feature allows you to manually adjust the TVT to avoid false echoes caused by
obstructions. (For an explanation see
Open the menu Device – Echo Profile Utilities and click on the tab TVT Shaper
• Click on Measure to refresh the echo profile and load the current TVT from the
device.
• Change the position of the cursor on the TVT using the Point+ and Point– buttons:
raise and lower the TVT using Offset+ and Offset–.
• Alternatively, enter values for Point and Offset directly into the dialog boxes.
• Click on Transfer to Device.
7ML19985JF04 SITRANS LR250 (PROFIBUS PA) – OPERATING INSTRUCTIONS
Auto False Echo Suppression (2.5. 1 0. 1 .)
TVT
cursor
echo
profile
on page 126.)
Page 51