Siemens Sitrans LR250 User Manual

Remote operation
7.1 Operating via SIMATIC PDM
SITRANS LR250 (PROFIBUS PA)
86 Operating Instructions, 08/2014, A5E32221386-AC
View saved echo profiles
To view a saved profile, click on the tab
View Saved Echo Profiles
.
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 maximum 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 X scale 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 Auto False Echo Suppression (Page 236).
Open the menu
Device – Echo Profile Utilities
and click the tab
TVT Shaper
.

Siemens Sitrans LR250 Specifications

General

Accuracy	± 2 mm
Power Supply	10.5 to 42 V DC
Measurement Principle	Radar
Process Temperature	-40 to +80 °C
Process Pressure	Up to 40 bar
Output Signal	4 to 20 mA HART
Communication	HART
Enclosure Rating	IP68
Housing Material	Aluminum, stainless steel