Siemens sitrans LR 400 Instruction Manual And Users Manual page 49

4.2.3.4: Window Tracking (F = Off)
Value
A window follows the measured value which it is forced to track. The window size is
calculated from the set filling speed. Switch off window tracking for applications where
the SITRANS LR 400 is unable to keep up to level changes. By using SIMATIC PDM, you
can display a list of all echoes in your vessel. It provides the distance between the flange
and the measuring medium's surface, as well as the distances of fixed targets. These
may be directly used and transferred to the fix distance list.
4.2.3.5: Tank Empty Detect (for qualified personnel only)
This parameter is for Factory Authorized Personnel Only.
4.2.3.6: Auto Fix Distance (for qualified personnel only)
This parameter is for Factory Authorized Personnel Only.
4.2.3.7: Fix Distance List (for qualified personnel only)
This parameter is for Factory Authorized Personnel Only.
4.2.3.7.1 to 4.2.3.7.9: Fix Distance Values (for qualified
personnel only)
These parameters are for Factory Authorized Personnel Only
4.2.3.8: Auto False Echo Suppression (F = Use)
Learns and records the current signal up to the suppression distance setting. These
signals are then ignored during operation.
Note:
This function works best when the vessel is nearly empty. For best results, do
not record or learn when the vessel is completely empty.
Value
If all signals fall below this defined threshold, then the failsafe timer is initiated.
7ML19985FH04
On
Off
Off
Record
Use
SITRANS LR 400 – INSTRUCTION MANUAL Page 46