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Safety notes
2.2 Installation in hazardous location
SITRANS F C MC2
Operating Instructions, 10/2009, A5E02154544-02
9
Sensor location
Non-hazardous location
Hazardous location
EX requirements
It is required that:
● Electrical connections are in accordance with Elex V (VO in explosion hazardous areas)
and EN60079-14 (Installing Electrical Systems in Explosion Hazardous Areas).
● The protective cover over the power supply is properly installed. For intrinsically safe
circuits the connection area can be opened.
● Appropriate cable connectors are used for the output cicuits: intrinsically safe: blue, non-
intrinsically safe: black
● Sensor and transmitter are connected to the potential equalization. For intrinsically safe
output circuits potential equalization must be maintained along the entire connection path.
● Sensor insulation thickness is max. 100mm (only insulated sensors).
● EN50281-1-2 is considered for installation in areas with combustible dust.
● When protective earth (PE) is connected, no potential difference between the protective
earth (PE) and the potential equalization (PA) can exist, even during a fault condition.