Labom CI4 Series Operating Instructions Manual page 24

height volume
(measured) (entered)
0 m
4,1 m
-2 m
2,2 m
-3 m
0,8 m
-3,6 m
0 m
6.5.4 "Adjustment" menue
The following functions are available for the adjustment:
Menue entry
Zero point
Position correction
Lower adjustment
Upper adjustment
6.5.4.1 Zero-point correction
The zero-point correction requires a non-pressurized pressure port e.g. during calibration
in the lab. When executing this function the applied pressure will be interpreted as zero bar
relative pressure.
The zero point correction results in an offset of the whole characteristic curve. Therefore it
is a special case of the lower adjustment (see below).
6.5.4.2 Position correction
Using the function "Position correction", you can correct the offset error due to the installa-
tion position independent of the zero-point offset.
In the corresponding submenue, you will find the following entries:
Menue entry
Pos.corr. on/off
Set pos. corr.
When you set the position correction, it will be activated automatically. You can deactivate
the position correction, for instance for a subsequent calibration to check the zero point
independently from the installation position.
BA_078 Rev 1F6 Level transmitter PASCAL Ci4 LEVEL
height
(sorted)
3
0 m
3
0,8 m
3
2,2 m
3
4,1 m
Figure 22: Automatic sorting and adjusting control points
Description
Set device at ambient pressure to zero (0 bar rel) (not with abso-
lute pressure devices)
Correct zero point error due to installation position (not with abso-
lute pressure devices)
Offset correction with applied reference pressure
Span correction with applied reference pressure
Table 12: "Pressure Adjustment" menue
Description
Activate/deactivate position correction
Correct position error at ambient pressure
Table 13: "Position Correction" submenue
volume
3
-3,6 m
3
-3 m
3
-2 m
3
0 m
height volume
(shifted)
3
0 m
0 m
3
0,6 m
0,8 m
3
1,6 m
2,2 m
3
3,6 m
4,1 m
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