SED 024.16.720 - Pneumatic Connection of the Positioner

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Fluid Installation
Type 024.16.720
10.3. Pneumatic connection of the positioner
DANGER!
Risk of injury from high pressure!
Before dismounting pneumatic lines and valves, turn off the pressure and vent the lines.•
Pressure supply connection
label: 1
Exhaust air connection
label: 3
Fig. 25: Pneumatic Connection
Procedure:
→ Connect the control medium to the pressure supply connection (1)
(3–7bar;instrumentair,freeofoil,wateranddust).
→ Attach the exhaust airline or a silencer to the exhaust air connection (3).
Caution:(Exhaust air concept):
In compliance with protection class IP67, an exhaust air line must be installed in the dry area.
Keep the adjacent supply pressure always atleast0.5–1barabovethepressurewhichisrequired
to move the actuator to its end position. This ensures that the control behavior is not extremely neg-
atively affected in the upper stroke range on account of too little pressure difference.
Duringoperationkeeptheuctuationsofthepressuresupplyaslowaspossible(max.±10%).Ifuc-
tuations are greater, the control parameters measured with the X.TUNE function are not optimum.