39
6 Set up with the display and adjustment module PLICSCOM
VEGABAR 66 • 4 … 20 mA/HART - climate compensated
36738-EN-130321
Information:
The zero adjustment shifts the value of the span adjustment. The
span, i.e. the difference between these values, however, remains
unchanged.
Information:
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
If the adjustment ranges are exceeded, the message "
Outside param
-
eter limits
" appears. The editing procedure can be aborted with
[ESC]
or the displayed limit value can be accepted with
[OK]
.
Proceed as follows:
1. Edit the mbar value in the menu item "
span
" with
[OK]
.
Span
100.0 %
P
=
+1000.0 mbar
0000.0
mbar
Information:
The displayed pressure for 100
% corresponds to the nominal meas-
uring range of the sensor (in the above example 1
bar = 1000
mbar).
2.
Set the requested mbar value with
[->]
and
[OK]
.
3. Confirm with
[OK]
and move to the menu overview with
[ESC]
.
The span adjustment is finished.
Information:
For an adjustment with pressure, simply enter the actual measured
value indicated at the bottom of the display.
If the adjustment ranges are exceeded, the message "
Outside param
-
eter limits
" appears. The editing procedure can be aborted with
[ESC]
or the displayed limit value can be accepted with
[OK]
.
A linearisation is necessary for all vessels in which the vessel volume
does not increase linearly with the level - e.g. in a horizontal cylindri
-
cal or spherical tank - and the indication or output of the volume is
required. Corresponding linearisation curves are preprogrammed for
these vessels. They represent the correlation between the level per-
centage and vessel volume. By activating the appropriate curve, the
volume percentage of the vessel is displayed correctly. If the volume
should not be displayed in percent but e.g. in l or kg, a scaling can be
also set in the menu item "
Display
".
Linearization curve
Linear
Enter the requested parameters via the appropriate keys, save your
settings and jump to the next menu item with the
[->]
key.
Carry out span adjust-
ment
Linearization curve