VEGA VEGASON 51V…53V - Manual (Page 54)

54 VEGASON 51 V … 53 V
With the menu point " False echo storage" in
the menu window " Sensor optimisation" you
can cause the sensor to mark false echoes.
The sensor electronics then saves the false
echoes in an internal database and treats the
false echoes at a poorer grade than the use-
ful echo.
• Click in the menu window " Sensor
optimisation" to the menu point "False echo
storage".
• Click in the menu window " False echo stor-
age" to "Learn false echoes". The small
window "Learn false echoes" opens.
• Enter here the checked product distance
and click to "Create new".
Hence you cause the sensor to mark all ech-
oes in front of the product echo als false
echoes. This avoids that the sensor detects
erroneously a false echo as level echo.
In the following figure you see the echo curve
before correction of the installation angle
(directing to the product surface) with a false
echo which has nearly the same size than the
product echo and which is caused by a strut.
In the next figure you see the echo curve
after optimum directing of the sensor to the
product surface (sensor axis vertically to the
product surface).
You see that the false echo caused by the
strut is here reduced by approx. 20 dB
against the useful echo and hence can no
more influence the measurement.
• Quit the menu window "Echo curve" with
" Quit".
Set-up - Adjustment with PC on VEGAMET