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Service and maintenance
13.3 Positioner in the plastic enclosure
13.3
Positioner in the plastic enclosure
Risk of explosion due to electrostatic charge
Electrostatic charges develop when cleaning the positioner in the plastic enclosure with a
dry cloth.
It is imperative you avoid electrostatic charges in the hazardous environment.
Dismantling
1. Disconnect the pneumatic power supply.
2. Remove the lines.
3. Unscrew the cover.
4. Unscrew the three self-tapping screws on the pneumatic terminal strip.
5. Remove the screens and O-rings behind the terminal strip.
6. Clean the screens, e.g. using compressed air.
Installation
Damage to the enclosure
• The enclosure is damaged due to screwing in the self-tapping screws improperly.
• Ensure that the available thread pitches are used.
• Turn the screws anticlockwise until they engage noticeably in the thread pitch.
• Tighten the self-tapping screws only after they have engaged.
1. Insert the screens into the recesses of the plastic enclosure.
2. Place the O-rings on the screens.
3. Fit the pneumatic terminal strip on both studs so that it fits flushly.
4. Screw-on the three self-tapping screws.
5. Place the cover and tighten it.
6. Reconnect the pipelines and feed the pneumatic power supply.
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DANGER
CAUTION
SIPART PS2 with PROFIBUS communication
Operating Instructions, 09/2007, A5E00127926-07
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