Samson 3730 Series Mounting And Operating Instructions page 77

17* KP step
0 to 17 [7]
ESC
18* TV step
[2]
1 2 3 4 OFF
ESC
19* Tolerance band
0.1 to 10.0 [5] % of the
operating range
ESC
20* Characteristic
0 to 9 [0]
ESC
Displaying or changing K
Note on changing the K
During the initialization of the positioner, the K
optimized.
Should the positioner show a tendency for impermissibly high
post-pulse oscillation due to additional interference, the K
T steps can be adapted after the initialization.
V
For this, either the T
V
the desired response behavior is reached or, when the maximum
value of 4 is reached, the K
ments.
CAUTION! Changing the K
This effect decreases as the K
Displaying or changing T
See note under K step
P
A change of the T step has no effect on the system deviation.
V
Used for error monitoring
Determination of the tolerance band in relation to the operating
range.
Associated lag time [30] s is a reset criterion.
If, during initialization, a transit time is determined which is
6 times > 30 s, the 6fold transit time is accepted as lag time.
Select the characteristic:
0: Linear
1: Equal percentage
2: Reverse equal percentage
3: Butterfly valve linear
4: Butterfly valve eq. percentage 9: User-defined *
* Definition over SAMSON TROVIS-VIEW software or HART
P
and T steps:
P V
step can be increased in increments until
step can be decreased in incre-
P
step influences the system deviation.
P
step increases.
P
,
V
5: Rotary plug valve linear
6: Rotary plug valve eq. perc.
7: Segmented ball valve linear
8: Segmented ball valve eq. p.
Code list
and T values are
P V
and
P
®
communication
77
EB 8384-3 EN