Vega VEGAPULS 63 Operating Instructions Manual page 48

6 Set up the sensor with the display and adjustment module
Diagnostics - Echo curve
memory
Additional adjustments -
Instrument units
Additional settings - False
signal suppression
48
The "False signal suppression" displays the saved false echoes (see
menu "Additional settings") of the empty vessel with signal strength in
"dB" over the entire measuring range.
A comparison of echo curve and false signal suppression allows a
more detailed statement about measurement reliability.
The selected curve is continuously updated. A submenu with zoom
functions is opened with the [OK] key:
•
"X-Zoom": Zoom function for the meas. distance
•
"Y-Zoom": 1, 2, 5 and 10x signal magnification in "dB"
•
"Unzoom": Reset the presentation to the nominal measuring range
without magnification
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 if you want to use the Asset Management
functions. If possible, the curve should be saved with a low level in the
vessel.
With the adjustment software PACTware and a PC, a high resolution
echo curve can be displayed and used to recognize signal changes
during operation. In addition, the echo curve of setup can be dis-
played 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 mounting sockets
•
Vessel internals such as struts
•
Agitators
•
Buildup or welded joints on vessel walls
VEGAPULS 63 • Modbus and Levelmaster protocol