Vega VEGAPULS 62 Operating Instructions Manual page 48

6 Set up with the display and adjustment module
Diagnostics - Echo curve
memory
Additional adjustments -
Instrument units
Additional adjustments -
False signal suppression
48
The function "Echo curve memory" makes it possible to save the echo
curve at the time of setup. This is generally recommended, and it is
absolutely necessary to do this if you want to use the Asset Manage-
ment functions. If possible, the curve should be saved with a low level
in the vessel.
With the adjustment software PACTware and the PC, the high resolu-
tion echo curve can be displayed and used to recognize signal
changes during operation. In addition, the echo curve of setup can be
displayed in the echo curve window and compared with the current
echo curve.
In this menu item you select the measured variable of the system and
the temperature unit.
The following circumstances cause interfering reflections and can
influence the measurement:
•
High sockets
•
Vessel internals such as struts
•
Agitators
•
Buildup or welded joints on vessel walls
Note:
A false signal suppression detects, marks and saves these false
signals so that they are no longer taken into account in the level
measurement.
This should be done with the lowest possible level so that all potential
interfering reflections can be detected.
Proceed as follows:
1. Select with [->] the menu item "False signal suppression" and
confirm with [OK].
2. Confirm again with [OK].
3. Confirm again with [OK].
VEGAPULS 62 • 4 ... 20 mA/HART - four-wire