Siemens sitrans LR 400 Instruction Manual page 47

4.2.3.4: Window Tracking (F = on)
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 or if the output remains 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.
4.2.3.8: 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.
Value
If all signals fall below this defined threshold, then the failsafe timer is initiated.
4.2.3.9: Auto False Echo Suppression Distance (F = 2/3
vessel height)
Defines the end point of the auto false echo suppression distance
Value
4.2.4: Level Parameter
4.2.4.1: Level URV (= Parameter 1.5)
4.2.4.2: Level LRV (= Parameter 1.6)
4.2.4.3: Level Damping (= Parameter 1.7)
7ML19985FH03
on
off
Off
Record
Use
variable
SITRANS LR 400 – INSTRUCTION MANUAL Page 43