VEGA VEGAPULS 56V - Manual (Page 54)

54 VEGAPULS 56V
First of all a linear relation (a straight line) is
displayed. In the field "
Transfer measured
value“ the present level in percent of the ad-
justed measuring range (measuring window) is
displayed. You have adjusted the measuring
range with the min./max. adjustment to 0,500
up to 3,400 m.
Max.
Min.
100 % (0,500 m) corresp. to
1200 liters
Meas. range
0 % (3,400 m) corresp. to
45␣ liters
The user programmable linearisation curve is
generated with index markers, the so called
value pairs. A value pair consists of "
Lin-
earised“ (percentage value of the filling) and
"
Percentage value“ (percentage value of the
level relating to the measuring range). When
the index markers or value pairs of your
vessel are not known to you, you have to
gauge the vessel by liters.
Gauging by liters
In the characteristics of the following figure
you see five index markers (0, 1, 2, 3, and 4)
or value pairs. There is always a linear inter-
polation between the index markers.
In the menu window " Linearisation“ you see
that " Linear“ is pre-adjusted. This means that
the dependence between the percentage
value of the filling volume and the value of the
level is linear. Beside the two pre-adjusted
linearisation curves "
Cylindrical tank“ and
" Spherical tank“ you can also enter six "user
programmable curves“.
• To enter an own vessel geometry of a user
programmable filling curve, click to "user
programmable curve“.
• Then click to "Edit“.
Set-up
• Click in the menu window " Conditioning“ to
the menu point "Linearisation“.