Endress+Hauser Waterpilot FMX21 - Page 61

Waterpilot FMX21 Commissioning
Endress+Hauser 61
Description
6 Once all the points have been entered in the
table, select the "Activate table" option via the
"Lin. mode" parameter.
Menu path: Setup → Extended setup →
Linearization → Lin. mode
h Height
i Current value
v Volume
7 Result:
Result: The measured value after linearization
is displayed.
• Error message F510 "Linearization" and alarm current as long as the table is being
entered and until the table is activated.
• The lower-range value (= 4mA) is defined by the smallest point in the table.
The upper-range value (= 20mA) is defined by the largest point in the table.
• Using the parameters "Set LRV" and "Set URV", you can change the allocation of the
volume/mass values to the current values.
9.12.2 Manual entry of a linearization table
Example:
In this example, the volume in a tank with a conical outlet should be measured in m
3
.
Prerequisite:
• This is a theoretical calibration, i.e. the points for the linearization table are known.
• The "Level" measuring mode has been selected.
• A level calibration has been performed.
• The linearization characteristic must rise or fall continuously.
• For a description of the parameters mentioned, see the "Description of device
parameters" section .
L
WARNING
Changing the measuring mode affects the span (URV)
This situation can result in product overflow.
‣
If the measuring mode is changed, the setting for the span (URV) must be checked in
the "Setup" operating menu and readjusted if necessary.
Description
1 Select the "Manual entry" option via the "Lin.
mode" parameter.
Menu path: Setup → Extended setup →
Linearization → Lin. mode
3.5
0
3.0
V
[m]
3
h
[m]
0
A0018843
h Height
v Volume
2 Select using the "Unit after lin." e.g. m
3
.
Menu path: Setup → Extended setup →
Linearization → Unit after lin.