Process Unit 73 LF - Knick

Process Unit 73 LF
Trilinear
Enter the initial value (corresponding to 0/4 mA)
and the end value (corresponding to 20 mA) for
the process variable, as well as the corner points
using scrolling and cursor keys (see page 2–5)
and confirm your entries with .
Bilinear
Enter the initial value (corresponding to 0/4 mA)
and the end value (corresponding to 20 mA) for
the process variable, as well as the corner points
using scrolling and cursor keys (see page 2–5)
and confirm your entries with .
Enter the same values for 1st and 2nd corner X
and for 1st and 2nd corner Y.
“Function”
Enter the initial value (corresponding to 0/4 mA)
and the end value (corresponding to 20 mA) for
the process variable, as well as the 50 % point
using scrolling and cursor keys (see page 2–5)
and confirm your entries with .
Error Messages for Current Output
Settings
The output current is linearly output (only determined
by initial and end value). The alarm message
”Warn Current Param” is generated if the
settings fulfil one of the following conditions:
100
Trilinear (Bilinear) Curve
(rising, beginning < end):
Y 2
1st corner X beginning
2nd corner X end
1st corner X > 2nd corner X
Output current [%]
Y 1
0
0
Beginning
X 1 X 2
End
1st corner Y < 0(4) mA
2nd corner Y > 20 mA
1st corner Y > 2nd corner Y
Bilinear Curve (rising, beginning < end):
1st corner X = 2nd corner X and
1st corner Y 2nd corner Y
9–22 Capabilities