6.4 Linearisation
Linearisation mode
Linearisation enables volumetric measurement to be carried out in tanks, e.g. with conical
outlets in which the volume is not directly proportional to the level. The table below gives
a summary of the linearisation function (V3H6) that is available with the operating mode
"level curve" (V3H0). Linearisation follows a calibration in the volumetric units required.
The units for level, volume or weight are selectable using the "Unit after Linearisation"
(V3H3) parameter (see also tables, page 38).
Warnings
When activated, the linearisation curve is checked for plausibility.
The following warnings may occur:
After selection the operating mode "level curve", the following error message may be
displayed:
Entry
V3H6
Linearisation mode
Significance
1
Manual entry
For a linearisation curve max. 21 pairs of values for a % level and
the appropriate % volume are entered.
2
Semi-automatic entry of a
linearisation curve
"gauging"
With semi-automatic entry of the linearisation curve the tank is filled
or emptied. The height is automatically determined by the
Deltabar S by the hydrostatic pressure, the appropriate volume is
entered.
In addition V3H6 offers the functions:
0
Activating table
The entered linearisation table only comes into effect after it has
been activated.
3
Deleting table
Before a new linearisation table is entered, any previously active
table must be deleted. On deletion the linearisation mode is
automatically set to linear.
Code
Type
Significance
E605
Alarm
The manual linearisation curve is not complete or there is no
linearisation curve present.
Enter the linearisation curve in the operating mode "linear" and then
select the operation mode table.
Code
Type
Significance
E602
Warning
The linearisation curve does not rise continuously.
The number of the last valid pair automatically appears in V3H7. All
value pairs from this number onwards must be re-entered.
E604
Warning
The linearisation curve comprises less than two value pairs.
Enter more value pairs.
6 Level Measurement
Deltabar S
42
Hauser
