Use In Hazardous Areas; Loss Of Safety Of Device With Type Of Protection "Intrinsic Safety Ex I - Siemens SITRANS F Series Operating Instructions Manual

Safety notes

2.4 Use in hazardous areas

2.4.1 Use in hazardous areas
Use in hazardous areas
Risk of explosion. May cause death or serious injury.
● Only use equipment that is approved for use in the intended hazardous area and labelled
2.4.2

Loss of safety of device with type of protection "Intrinsic safety Ex i"

Loss of safety of device with type of protection "Intrinsic safety Ex i"
Risk of explosion May cause death or serious injury.
If the device has already been operated in non-intrinsically safe circuits or the electrical
specifications have not been observed, the safety of the device is no longer ensured for use
in hazardous areas. There is a risk of explosion.
● Connect the device with type of protection "Intrinsic safety" solely to an intrinsically safe
● Observe the specifications for the electrical data on the certificate and/or in Technical data
Special conditions for safe use
In general, it is required that:
● The terminal space 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.
Must be installed in accordance with Siemens control drawing A5E32778336A
18
WARNING
accordingly.
WARNING
circuit.
(Page 123).
SITRANS FST030 (Modbus)
Operating Instructions, 08/2018, A5E37367739-AD