Vega VEGAPULS 63 - 6 Echo Curve and Signal Analysis; Echo Curve Memory, Instrument Units & False Signal Suppression

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6 Set up the sensor with the display and adjustment module
VEGAPULS 63 • Modbus and Levelmaster protocol
41364-EN-170711
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magnicationin"dB"
•
"Unzoom":Resetthepresentationtothenominalmeasuringrange
withoutmagnication
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reectionsandcan
inuencethemeasurement:
•
High mounting sockets
•
Vessel internals such as struts
•
Agitators
•
Buildup or welded joints on vessel walls
Diagnostics - Echo curve
memory
A
dditional adjustments -
Instrument units
Additional settings - False
signal suppression