Level measurement (FF configuration program) Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus
30 Endress+Hauser
!
Note!
1. For this level mode, the measured variables %, volume and mass are available. → ä 61 ff.
2. You can also specify customer-specific units. See parameter description for Calibration Units/
CAL_UNIT (→ ä 54), Height Unit/HEIGHT_UNIT (→ ä 62), Unit Volume/
VOLUME_UNIT (→ ä 64) and Mass Unit/MASS_UNIT (→ ä 65).
3. Once you have entered the maximum tank contents to be expected for Scale Out/
SCALE_OUT, EU_100 element, the alarm "A719 Y-Val of lin. table out of edit limits" can
appear. At this stage, the linearization table already consists of two points as standard. It could
be the case that the 2nd value, and thus the highest Y-value of the linearization table, is greater
than the value entered for Scale Out/SCALE_OUT, EU_100 element. The message disappears
as soon as no Y_value is greater than the value for Scale Out/SCALE_OUT, EU_100 element
and the table entered is active.
6 Enter the linearization table (min. 2 points, max.
32 points).
P01-xxxxxxxx-05-xx-xx-xx-015
Fig. 12: Manual entry of the linearization table
1 See Section 5.5.1, Table, Step 9.
2 See Section 5.5.1, Table, Step 10.
3 See this table, Step 2.
4 See this table, Step 3.
5 See this table, Steps 4 to 7.
Table Line-Number/LINEARIZATION_TABLE_INDEX:
enter the value of the corresponding point.
X-Value/LINEARIZATION_TABLE_X_VALUE, 1st
element (X-value): enter the pressure value.
Y-Value/LINEARIZATION_TABLE_Y_VALUE, 2nd
element (Y-value): Enter the volume value, here 0 m
3
for
example, and confirm.
7 You can enter further points for the linearization table as
explained in Step 6. The previous point first has to be
saved in the linearization table before the next point can
be entered. This means that complete linearization tables
cannot be saved in the device. Once all the points have
been entered, the table must be activated by means of
the Edit Table/LINEARIZATION_TABLE_POST_EDIT
parameter.
8 Set the Pressure Transducer Block to the "Auto" block
mode.
9 Where necessary, configure the Channel/CHANNEL
(→ ä 96), Linearization Type/L_TYPE (→ ä 97),
Transducer Scale/XD_SCALE (→ ä 95) and Output
Scale/OUT_SCALE (→ ä 96) parameters by means of
the Analog Input Block.
10 Result:
The linearization table has been entered and the device
is ready for level measurement.
Description
➀
3.5
0
0 350
V
[m ]
3
p
[mbar]
➂
➁
➃
➄
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