Operating Instructions
32
Diagnostics / Measurement reliability
If level sensors which operate without contact are used the measurement can be affected by the process
conditions. The measurement reliability of the fill level echo is displayed as a dB value in this menu point.
The measurement reliability is the signal strength minus noise. The greater the value, the more accurate the
measurement. For a functional measurement the values are in excess of 10 dB.
Diagnostics / Curve indication
The "
Echo curve
" represents the signal strength of the echo over the measuring range in dB. The signal
strengths allows the quality of the measurement to be assessed.
The "
False signal suppression
" represents the saved interference echoes (see "
Additional adjustments
" menu)
for the empty vessel with the signal strength in "
dB
" over the measuring range.
A comparison of the echo curve and false signal suppression enables a more precise assessment of the
measurement reliability to be made. The selected curve is updated continuously. The
[OK]
key can be used to
open a sub-menu with zoom functions:
•
"
X zoom
": Magnification function for the measuring distance
•
"
Y zoom
": 1, 2, 5 and 10-fold magnification of the signal in "
dB
"
•
"
Unzoom
": Reset the display to the nominal measuring range with single magnification
