VEGA VEGAPULS 51V…54V - Manual (Page 54)

54 VEGAPULS 51 V … 54 V
Max.
Min.
100 % (0,500 m) corresponds
to
1200 litres
Meas. range
0 % (3,400 m) corresponds to
45,5 litres
The user programmable linearisation curve is
generated out of linearisation points, the so
called value pairs. A value pair consists of
"
Linearised (percentage value of the filling)
and " Percentage value" (percentage value of
the level relating to the meas. range).
If the linearisation points or value pairs of
your vessel are not known to you, you must
gauge the vessel by litres.
Gauging by litres
In the characteristics of the following figure
you see five linearisation points (0, 1, 2, 3,
and 4) or value pairs. Between the
linearisation points there is always a linear
interpolation.
Click to "
Indication in scaled values", to have
the adjusted meas. unit indicated on the y-
axis (left bottom part of the menu window).
Linearisation point 1 is at a filling level of 20 %
(20 % of the meas. distance of
0,500 m … 3,400 m).
Set-up - Adjustment with the PC on VEGAMET
In our example there are 100 litres at 20 %
filling in the vessel.
Linearisation point 2 is at a filling level of
40 %. At this filling level there are 250 litres in
the vessel.
Linearisation point 3 is at a filling level of
80 %, where 1000 litres are in the vessel.
Linearisation point 4 is at a filling level of
100 % (level distance 0,500 m), where 1200
litres are in the vessel.
You can enter max. 32 linearisation points
(value pairs) per linearisation curve.
• Quit the menu with " OK OK OK OK OK".
• Confirm the message with " OK OK OK OK OK", and your
individual linearisation curve will be saved
in the sensor.
Back to the menu window " Conditioning" you
can enter a measured value integration with
the menu point "
Integration time". This is
useful for fluctuating product surfaces to
avoid that the measured value indication and
output changes permanently. As a standard
feature an integration time of 0 seconds is
adjusted.
• Quit the menu with " OK OK OK OK OK".
You are now again in the menu window
"Conditioning".