SE/SG-300 series two-wire compact ultrasonic level transmitters
39
6.6
32-Point Linearisation
P47: - - - a
Linearisation
Linearisation is the method of assigning requested (calibrated or calculated) level, volume or flow to values measured by the transmitter.
It can be used for instance if the sound velocity is not known (LEVEL
⇒
LEVEL) or in the case of tank with other shape than under 6.4 or open
channel other than under 6.5 (LEVEL
⇒
VOLUME or LEVEL
⇒
FLOW).
a
Linearisation
0
OFF (FACTORY DEFAULT)
1
ON
P48:
Linearisation table
Data-pairs of the linearisation table are handled in a 2x32 matrix, consisting of two columns.
Left column “
L”
Right column “
r”
LEVEL measured
LEVEL or VOLUME or FLOW to be transmitted and displayed
The left column values (indicated on the display as “
L
”) contain the measured LEVEL values.
The right column values (indicated on the display as “
r
”) contain the calibrated values and are interpreted according to the selected measurement
value in
P01(a)
.
}
+
+
+
+
+
Number of data pairs
in the table
Level
volume
flow
Enter
the table
Address of data pair
Left hand
column
Level
measured
value
Canceling last modification
Right
hand
column
to be transmitted
and displayed
Entering values
Copying measured value
Neglect modification (CANCEL)
Entering "0" (closing up the tble)
Exit the
table
