Special Conditions For Safe Use - Siemens SITRANS FC430 Operating Instructions Manual

Safety notes
2.4 Use in hazardous areas
FCT030 remote transmitter
Temperature classification with and without dust is as follows:
● Potentially explosive gases: T6 (85°C surface temperature)
● Dust environment (Zone 21): T85°C
2.4.4

Special conditions for safe use

Special conditions for safe use
In general, it is required that:
● The FCT030 terminal compartment may be opened when an explosive gas or dust
atmosphere may be present at any time. Access power terminals by lifting the cover only
when de-energized.
● Appropriate cable connectors are used.
● Substitution of components may impair Intrinsic Safety.
● Sensor and transmitter are connected to the potential equalization throughout the
hazardous area.
● EN/IEC 60079-14 is considered for installation in hazardous areas.
Further information and instructions including approval-specific special conditions for safe use
in Ex applications can be found in the certificates on the accompanying documentation disk
and at the product web page.
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
Risk of explosion in hazardous areas.
Ensure that the national requirements of the country in which the devices are installed are
met.
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WARNING
WARNING
FC430 (From firmware 4.0)
Operating Instructions, 06/2017, A5E39789392-AA