Output Conversion Table - Oct Programming - +Gf+ 2298 Bedienungsanleitung

Type 2298 80 GHz Radar Level Sensor
5.8.3 P46 Distance associated with h=0 when measuring flow
FACTORY DEFAULT: VARIES BY TYPE
P46 is the distance between the sensor's process connection and the liquid's surface, which can be measured at the limit of the start
of the flow (Q = 0); see figures. Minimum value: P05 + 5 cm (2"). Maximum value: P03.
5.9 Output Conversion Table – OCT programming
5.9.1 P40 OCT operation
FACTORY DEFAULT: 0000
An output signal of any characteristic can be assigned to the level values measured by the device. The unit of the output signal is the
unit set in parameter P00 or P02 of the output data type assigned to the "HART - PV" output in parameter P01. The characteristic can
be specified with a maximum of 100 points. Between the points, the device calculates the output signal from the measured level by
linear interpolation and after the last point by linear extrapolation. The OCT can be used to assign the measured level to an arbitrary
output signal. Its typical application is the calculation of level to volume for tanks that are not included in the tank shape list (e.g.,
dented) and specifying individual channel characteristics in the case of open channel flow measurement.
P40 d
OC-Table ➙ Linearization
EView2
d Output data Measurement mode
0 Output Conversion Table OFF
1 Output Conversion Table ON
Conditions for correct programming of data pairs
The table must start with L(1)= 0 and R(1)= is the output quantity assigned to it.
•
Column "L" may not contain identical values.
•
Columns "L" and "R" can only have increasing values from top to bottom.
•
If the table contains less than 100 points, column "L", in the row following the last valuable data pair, must be 0.
•
P40
OC-Table ➙ OCT list
EView2
i L (left column)
MEASURED LEVEL
1 0
2 L(2)
L(i)
nn L(nn)
nn+1 0
100
42
Reference
See „6.5 The
output conversi-
on table (OCT)
– (EView2
OC-Table)" on
page 49
R (right column)
OUTPUT VALUE
R(1)
R(2)
R(i)
R(nn)
Instruction manual