VEGA VEGAFLEX 66 (-110…+400°C) 4 … 20 mA_HART - Manual (Page 34)

W ith this menu item, the Basic adjustment is finished and you
can now jump to the main menu with the [ESC] key.
H igh 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 measure-
ment. 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 empty vessel so that all potential interfering reflections will
be detected.
P
robes in coax version require no gating out of false echoes
since they are not influenced by false reflections.
G ating out of false signals
C hange now?
P roceed as follows:
1 M ove from the measured value display to the main menu
by pushing [OK].
2 S elect the menu item "Service" with [->] and confirm with
[OK] . N ow the menu item "False signal suppression" is
displayed.
3 C onfirm "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:
C
heck the distance to the product surface, because if an
incorrect (too large) value is entered, the existing level will be
saved as false signal. The filling level would then no longer be
detectable in this area.
T
his function enables reading out parameter adjustment data
as well as writing parameter adjustment data into the sensor
via the indicating and adjustment module. A description of the
function is available in the operating instructions manual
"I
ndicating and adjustment module".
T
he following data are read out or written with this function:
l
M
easured value presentation
Gating out of false sig-
nals
Copy sensor data
34 VEGAFLEX 66 • 4 … 20 mA/HART
6 S et up with the indicating and adjustment module PLICSCOM
32762
-EN
-080716