11 stroke characterization – Flowserve 3400IQ Digital Positioner User Manual
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Logix 3400IQ Digital Positioner FCD LGENIM3402-00 – 0/07
45
94.2
11.86
45
50
94.8
14.15
50
55
95.5
17.54
55
60
96.0
20.93
60
65
96.5
25.94
65
70
97.0
30.95
70
75
97.5
38.36
75
80
98.0
45.77
80
85
98.5
55.66
85
90
99.0
67.68
90
95
99.5
82.31
95
100
100.0
100.0
100
NOTE: Custom characterization points can only be entered with the FB configurator.
Figure 10.3 Logix 3400IQ Digital Positioner Characteristic Curves
10.11 Stroke Characterization
In addition to three pre-defined and embedded characterization curves, the Logix 3400IQ positioner
has a 21-point custom stroke characterization feature. This allows the user to define a unique set of
operating parameters customizable to his process conditions.
0
10
20
30
40
50
60
70
80
90
100
Linear
Equal Percent
Quick Open
0
20
40
60
80
100
FINAL_VALUE (% FS)
CMD_USED (% FS)