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2.3
Use in hazardous areas
2.3.1
Special conditions for safe use
Special conditions for safe use
In general, it is required that:
● EN/IEC 60079-14 is considered for installation in hazardous areas.
● Appropriate cable connectors are used.
● Sensor is connected to the potential equalization throughout the hazardous area.
● The device is not opened when energized and when an explosive gas or dust atmosphere
may be present.
Further information and instructions including approval-specific special conditions for safe use
in Ex applications can be found in the certificates on the documentation disk and at the product
web page (www.siemens.com/FC410).
Substitution of components
Substitution of components may impair Intrinsic Safety.
Laying of cables
Risk of explosion in hazardous areas.
Cable for use in hazardous areas must satisfy the requirements for having a proof voltage of
at least 500 V AC applied between the conductor/ground, conductor/shield and shield/ground.
Connect the devices that are operated in hazardous areas as per the stipulations applicable
in the country of operation.
Field wiring installation
Ensure that the national requirements of the country in which the devices are installed are met.
SITRANS FC410
Compact Operating Instructions, 05/2020, A5E39942309-AB
WARNING
WARNING
WARNING
Safety notes
2.3 Use in hazardous areas
15
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