Cleaning Of The Screens; Positioners With Polycarbonate Enclosure 6Dr5..0, Aluminum Enclosure 6Dr5..3 - Siemens SIPART PS2 Operating Instructions Manual

Service and maintenance

11.2 Cleaning of the screens

Electrostatic charge
Risk of explosion in hazardous areas if electrostatic charges develop, for example, when
cleaning plastic surfaces with a dry cloth.
● Prevent electrostatic charging in hazardous areas.
11.2 Cleaning of the screens
The positioner is maintenance-free to a large extent. Screens are installed in the pneumatic
connections of the positioners to protect them from rough dirt particles. If there are dirt particles
in the pneumatic auxiliary power supply, they damage the screens and hamper the function
of the positioner. Clean the screens as described in the following two chapters.
11.2.1

Positioners with polycarbonate enclosure 6DR5..0, aluminum enclosure 6DR5..3,

and flameproof aluminum enclosure 6DR5..5
Risk of explosion due to electrostatic charge
Electrostatic charges develop, for example, when cleaning the positioner in the polycarbonate
enclosure with a dry cloth.
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 polycarbonate 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.
226
WARNING
DANGER
SIPART PS2 with and without HART
Operating Instructions, 05/2017, A5E00074631-AC