Vega VEGAPULS 63 Operating Instructions Manual page 33

Linearisation curve
Gating out of false sig-
nals
VEGAPULS 63 • 4 ... 20 mA/HART - four-wire
6 Set up with the indicating and adjustment module PLICSCOM
safety", "Solid" is preset as factory setting. However, the
instrument should be used preferably in liquids. In such cases,
the vessel form should be set to "Storage tank" during setup.
Enter the requested parameter via the appropriate keys, save
your settings and jump to the next menu item with the [->] key.
A linearization is necessary for all vessels in which the vessel
volume does not increase linearly with the level - e. g. with a
cylindrical or spherical tank - and the indication or output of the
volume is required. Corresponding linearization curves are
preprogrammed for these vessels. They represent the
correlation between the level percentage and vessel volume.
By activating the appropriate curve, the volume percentage of
the vessel is displayed correctly. If the volume should not be
displayed in percent but e.g. in l or kg, a scaling can be also
set in the menu item "Display".
Linearisation curve
linear
Enter the requested parameter 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 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.
Gating out of false signals
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.
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