Endress+Hauser Levelflex FMP56 Operating Instructions Manual page 135

Levelflex FMP56, FMP57 HART
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Endress+Hauser
Conditions the linearization table must meet:
• The table may consist of up to 32 pairs of values "Level - Linearized Value".
• The table must be monotonic (monotonically increasing or decreasing).
• The first linearization point must refer to the minimum level.
• The last linearization point must refer to the maximum level.
Before entering a linearization table, the values for Empty calibration (→  114)
and Full calibration (→  114) must be set correctly.
If values of the table need to be changed after the full or empty calibration have been
changed, a correct evaluation is only ensured if the existing table is deleted and the
complete table is entered again. To do so delete the existing table (Table mode
(→  134) = Clear table). Then enter a new table.
How to enter the table
• Via FieldCare
The table points can be entered via the Table number (→  135), Level (→  135)
and Customer value (→  136) parameters. As an alternative, the graphic table editor
may be used: Device Operation → Device Functions → Additional Functions →
Linearization (Online/Offline)
• Via local display
Select the Edit table submenu to call up the graphic table editor. The table is displayed
and can be edited line by line.
The factory setting for the level unit is "%". If you want to enter the linearization table
in physical units, you must select the appropriate unit in the Level unit parameter
(→  125) beforehand.
If a decreasing table is entered, the values for 20 mA and 4 mA of the current output
are interchanged. That means: 20 mA refers to the lowest level, whereas 4 mA refers
to the highest level.
 Setup → Advanced setup → Linearization → Table number
Linearization type (→  130) = Table
Select table point you are going to enter or change.
1 to 32
 Setup → Advanced setup → Linearization → Level
• Linearization type (→  130) = Table
• Table mode (→  134) = Manual
Enter level value of the table point (value before linearization).
Signed floating-point number
Operating menu
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