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Maintenance and cleaning
Unauthorized repair of devices in explosion-proof design
Risk of explosion in hazardous areas
• Repair work may only be performed by personnel authorized by Siemens.
Impermissible accessories and spare parts
Risk of explosion in hazardous areas
• Only use original accessories and original spare parts.
• Observe all relevant installation and safety instructions described in the manuals for the
Hot surfaces
Risk of burns during maintenance work on parts with a surface temperature above 70 °C
(158 °F).
• Take appropriate protective measures, for example, wear protective gloves.
• Once maintenance work is complete, restore the touch protection measures.
NOTICE
Cleaning the housing
If the device is not in a hazardous area, only clean the outer parts of the housing with a dry
cloth.
If the device is in a hazardous area, use a slightly damp cloth for cleaning.
Do not use solvents.
SCALANCE MUM856-1
Operating Instructions, 08/2021, C79000-G8976-C628-02
WARNING
WARNING
device or supplied with the accessories or spare parts.
CAUTION
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