Siemens 6DR5 Serie Kompaktbetriebsanleitung Seite 33

WARNING
Improper connection after maintenance
Danger of explosion in areas subject to explosion hazard.
● Connect the device correctly after maintenance.
● Close the device after maintenance work.
Refer to Chapter "Electric connection (Page 13)".
NOTICE
Penetration of moisture into the device
Device damage.
● Make sure when carrying out cleaning and maintenance work that no moisture penetrates the inside of the device.
CAUTION
Releasing key lock
Improper modification of parameters could influence process safety.
● Make sure that only authorized personnel may cancel the key locking of devices for safety-related applications.
WARNING
Electrostatic charge
Danger of explosion in hazardous areas if electrostatic charges develop e.g. when cleaning plastic enclosures with a dry
cloth.
● Prevent electrostatic charging in hazardous areas.
WARNING
Dust layers above 5 mm
Danger of explosion in hazardous areas. Device may overheat du to dust build up.
● Remove any dust layers in excess of 5 mm.
Cleaning the enclosure
● Clean the outside of the enclosure and the display window using a cloth moistened with water or a mild detergent.
● Do not use aggressive cleaning agents or solvents. Plastic components or painted surfaces could be damaged.
6.2 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.
6.2.1 Positioner in macrolon enclosure
DANGER
Risk of explosion due to electrostatic charge
Electrostatic charges develop when cleaning the positioner in the macrolon enclosure with a dry cloth, for example.
It is imperative you avoid electrostatic charges in the hazardous environment.
Removal and cleaning of the screens
1. Disconnect the pneumatic auxiliary power supply.
SIPART PS2 (6DR5...)
A5E03436620-02, 01/2013
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