Design and Functional Principle
19
SIPAR T PS2 Manual
A5E00074631--06
2.3.3 Pneumatic Connections
The pneumatic connections are on the right hand side of the positioner
(figure 2-4 and figure 2-5).
1
2
3
4
5
1 Actuating pressure Y1 in single- and double-acting actuators
2 Feedback shaft
3 Supply air P
z
4 Actuating pressure Y2 in double-acting actuators
5 Exhaust air output E with silencer on the bottom of the instrument
Figure 2-4 Pneumatic connection in normal version
1
2
3
4
5
6
7
1 Restrictor Y2 *) 5 Actuating pressure Y1
2 Restrictor Y1 6 Exhaust air output E
3 Actuating pressure Y2 *) 7 Housing ventilation (2x)
4 Supply air PZ
*)
in double-acting actuators
Figure 2-5 Pneumatic connection in explosion proof version
In addition, there are pneumatic connections on the back of the posi-
tioner for integrated installation in single-acting linear actuators.
S Actuating pressure Y1
S Exhaust air output E (not in explosion proof version)
In the ex-factory state, these connections are sealed by screws
(see figure 3-1, page 41, figure 3-3, page 42 and figure 3-4, page 43).
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