Samson 3730-1 Mounting And Operating Instructions page 55

Display, values
Code [default setting]
Note: Codes marked by an asterisk (*) indicate that the positioner needs to be re-initialized afterwards
P5 Characteristic
0 to 8 [0]
P6 Set point
[4 to 20 mA]
SRLO/SRHI
P7 w/x
[>>]/<>
P8* Gain K
P
30/[50]
P9 Pressure limitation
ON/[OFF]
P10 End position w <
[ON]/OFF
P11 End position w >
ON/[OFF]
P12 Limit A1
0 to 100 % [2 %]
EB 8384-1 EN
Characteristic selection: 0, 1, 2 for globe valves,
0 Linear
1 Equal percentage
2 Reverse equal percentage
3 SAMSON butterfly valve, linear
4 SAMSON butterfly valve, equal percentage
5 VETEC rotary plug valve, linear
6 VETEC rotary plug valve, equal percentage
7 Segmented ball valve, linear
8 Segmented ball valve, equal percentage
For split-range operation:
SRLO: low range 4 to 11.9 mA
SRHI: high range 12.1 to 20 mA
Direction of action of the set point w to the valve position x (in-
creasing/increasing or increasing/decreasing)
On initializing the positioner, the gain is set to the selected value.
If the positioner hunts, the K
The signal pressure can take on the same pressure as the supply air
at the maximum [OFF] or, in the case that the maximum actuator
force can damage the valve, the pressure is limited to approx.
2.4 bar.
Lower tight-closing function:
If w reaches up to 1 % towards the final value that causes the
valve to close, the actuator is immediately completely vented (with
ATO - air to open) or filled with air (with ATC - air to close).
Upper tight-closing function:
If w reaches up to 99 % towards the final value that causes the
valve to open, the actuator is immediately completely filled with
air (with ATO - air to open) or vented (with ATC - air to close).
Software limit value A1 is displayed or can be changed in relation
to the operating range (steps of 0.5 %).
Description
0 to 8 with rotary actuators (P3 = 90°)
value can be reduced.
p
Code list
55