30
6 Set up with the display and adjustment module PLICSCOM
VEGAPULS 66 enamel • 4 … 20 mA/HART - four-wire
31954-EN-141215
Linearisation curve
Linear
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the
[->]
key.
High sockets or vessel installations, such as e. g. struts or agitators as
well as buildup and weld joints on the vessel walls, cause interfering
reflections which can impair the measurement. A false echo storage
detects and marks these false echoes, so that they are no longer
taken into account for the level measurement. A false echo memory
should be created with low level so that all potential interfering reflec
-
tions can be detected.
False signal suppression
Change now?
Proceed as follows:
1. Move from the measured value display to the main menu by
pushing
[OK]
.
2. Select the menu item "
Service
" with
[->]
and confirm with
[OK]
.
Now the menu item "
False signal suppression
" is displayed.
3. Confirm "
False signal suppression - Change now
" with
[OK]
and
select in the below menu "
Create new
". Enter the actual distance
from the sensor to the product surface. All false signals in this
area are detected by the sensor and saved after confirming with
[OK]
.
Note:
Check the distance to the product surface, because if an incorrect
(too large) value is entered, the existing level will be saved as a false
signal. The level would then no longer be detectable in this area.
The menu item "
Extended setting
" offers the possibility to optimise
VEGAPULS 66 for applications in which the level changes very
quickly. To do this, select the function "
Quick level change > 1 m/min.
".
Extended setting
quick level change > 1 m/min.
Note:
Since with the function "
Quick level change > 1 m/min.
" the genera
-
tion of an average value of the signal processing is considerably
reduced, false reflections by agitators or vessel installations can
cause measured value fluctuations. A false echo memory is thus
recommended.
False signal suppression
Extended setting/Quick
level change
