User's Manual

7ML19985FH01 SITRANS LR 400 – INSTRUCTION MANUAL DRAFT Page 39
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Parameters (HART)
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.
4.2.3.9: 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.
If all signals fall below this defined threshold, then the failsafe timer is initiated.
4.2.3.A: Auto False Echo Suppression Distance (F = 2/3
vessel height)
Defines the end point of the Auto False echo suppression distance
4.2.4: Level Parameter
4.2.4.1: Level URV (= parameter 1.5)
4.2.4.2: Level URV (= parameter 1.6)
4.2.4.3: Level URV (= parameter 1.7)
4.2.4.4: MinLim Level (F = 0 m)
Lower limit value of the level (see “Functional Dimensions” on page 25)
Set the lower limit value of the level as a height above the LRV.
4.2.4.5: MaxLim Level (F = 0 m)
Upper limit value of the level (see “Functional Dimensions” on page 25)
Set the upper limit value of the level as a height above the LRV.
Values
off
record
use
Value
variable
Value
numerical value
Value
numerical value
chap6.fm Page 39 Tuesday, October 9, 2001 2:26 PM