Positioners With Makrolon Enclosure 6Dr5 - Siemens SIPART PS2 Operating Instructions Manual

11.2.1 Positioners with Makrolon enclosure 6DR5..0, aluminum enclosure 6DR5..3,
and flameproof aluminum enclosure 6DR5..5
Risk of explosion due to electrostatic charge
Electrostatic charges develop when cleaning the positioner in the Makrolon enclosure with
a dry cloth, for example.
It is imperative you avoid electrostatic charges in the hazardous environment.
Procedure for removal and cleaning of the screens
1. Disconnect the pneumatic auxiliary power supply.
2. Remove the lines.
3. Unscrew the cover of the Makrolon enclosure 6DR5..0 or aluminum enclosure 6DR5..3.
4. Unscrew the three 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.
Procedure for installation of the screens
Damage to the Makrolon 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 enclosure.
2. Place the O-rings on the screens.
3. Insert the pneumatic terminal strip.
4. Tighten the three screws. Note: With the Makrolon enclosure, the screws are self-tapping.
5. Place the cover and tighten it.
6. Reconnect the pipelines and feed the pneumatic power supply.
SIPART PS2 with and without HART
Operating Instructions, 02/2016, A5E00074631-AB
DANGER
CAUTION
Service and maintenance
11.2 Cleaning of the screens
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