Level measurement (FF configuration program) Cerabar S/Deltabar S/Deltapilot S FOUNDATION Fieldbus
28 Endress+Hauser
10 Select the Scale In/SCALE_IN parameter, EU_0
element.
P01-xxxxxxxx-05-xx-xx-xx-015
Fig. 11: Semiautomatic entry of the linearization
table
1 See Table, Step 10.
2 See Table, Step 11.
3 See Table, Step 12.
4 See Table, Step 13.
5 See Table, Steps 14 to 17.
Enter the minimum hydrostatic pressure to be expected,
here 0 mbar for example.
11 Select the Scale In/SCALE_IN parameter, EU_100
element
.
Enter the maximum hydrostatic pressure to be expected,
here 350 mbar (5.25 psi) for example.
Carry out linearization:
12 Select the Scale Out/SCALE_OUT parameter, EU_0
element.
Specify the minimum tank contents to be expected, here
0 m
3
for example.
13 Select the Scale Out/SCALE_OUT parameter, EU_100
element.
Specify the maximum tank contents to be expected, here
3.5 m
3
for example. See also Point 4 in the following
note.
14 By means of the Lin. Edit Mode/
LINEARIZATION_EDIT_MODE parameter, select the
"Semiautomatic" option.
15 By means of the Table Selection/
LINEARIZATION_TABLE_SELECTION parameter,
select the "Edit table" option.
16 Enter the linearization table (min. 2 points, max.
32 points).
Fill the tank to the height of the 1st point.
Table Line-Number/LINEARIZATION_TABLE_INDEX:
enter the value of the corresponding point.
The Sensor Pressure/SENSOR_PRESSURE
parameter indicates the hydrostatic pressure present at
the device. This hydrostatic pressure displayed is saved
by confirming the Y-value. See the following line.
Y-Value/LINEARIZATION_TABLE_Y_VALUE, 2nd
element (Y-value): Enter the volume value, here 0 m
3
for
example, and confirm the value.
17 You can enter further points for the linearization table as
explained in Step 15. 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.
18 Set the Pressure Transducer Block to the "Auto" block
mode.
19 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.
20 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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