Endress+Hauser Cerabar M - Page 88

Commissioning with an operating menu (onsite display/FieldCare) Cerabar M, Deltabar M, Deltapilot M
88 Endress+Hauser
8.5.3 Semi-automatic entry of the linearization table
Example:
In this example, the volume in a tank with a conical outlet should be measured in m
3
.
Prerequisite:
• The tank can be filled or emptied. The linearization characteristic must rise continuously.
• A level calibration has been performed.
For a description of the parameters mentioned  Chap. 8.11 "Description of parameters".
Error message F510 "Linearization" and status signal "failure" appears as long as the table is
being entered and until the table is activated.
Description
1 Select the "Semi-auto. entry" option via the "Lin.
mode (037)" parameter.
Menu path: Setup Extended Setup 
Linearization Lin. mode (037)
A0030032
2 Select the volume unit/mass unit via the "Unit after
lin. (038)" parameter, e.g. m
3
.
Menu path: Setup Extended Setup 
Linearization Unit after lin. (038)
3 Fill the tank to the height of the 1st point.
4 Enter the number of the point in the table via the
"Line numb. (039)" parameter.
Menu path: Setup Extended Setup 
Linearization Line numb. (039)
The actual level is displayed via the "X-value (040)
(manual entry)" parameter.
Menu path: Setup Extended Setup 
Linearization X-value (040) (manual entry)
Using the "Y-value (041) (manual entry/in semi-
auto. entry)" parameter, enter the associated volume
value, here 0 m
3
for example, and confirm the value.
Menu path: Setup Extended Setup 
Linearization Y-value (041) (manual entry/in
semi-auto. entry)
5 To enter another point in the table, select the "Next
point" option via the "Edit table (042)" parameter.
Enter the next point as explained in Step 4.
Menu path: Setup Extended Setup 
Linearization Edit table (042)
6 Once all the points have been entered in the table,
select the "Activate table" option via the "Lin. mode
(037)" parameter.
Menu path: Setup Extended Setup 
Linearization Lin. mode (037)
7Result:
The measured value after linearization is displayed.
h
[m]
0
0 3.0
h
[m]
3.5
0
0 3.0
V
[m
3
]
V
[m
3
]