Siemens SITRANS FUS060 Operating Instructions Manual page 15

• Appropriate cable connectors are used for the output circuits:
– Intrinsically safe: blue
– Non-intrinsically safe: black
• Sensor and transmitter are connected to the equipotential bonding system (PA) (min. 4
mm
For intrinsically safe output circuits potential equalization must be maintained along the
entire connection path.
• When protective earth (PE) is connected, no potential difference between the protective
earth (PE) and the equipotential bonding system (PA) can exist, even during a fault condition.
SITRANS FUS060 with PROFIBUS PA
Operating Instructions, 09/2021, A5E02225054-AD
).
2
WARNING
"Flameproof enclosure" type of protection
Only open devices with type of protection "Flameproof enclosure" in hazardous areas when
the power to the device is turned off, otherwise there is a risk of explosion.
WARNING
500 V insulation test
The device is not capable of withstanding the 500 V insulation test required by Clause
6.3.12 of EN60079-11. This must be taken into account when installing the device.
WARNING
Laying of cables
Cable for use in zone 1 and 2 or 21 and 22 must satisfy the requirements for having a proof
voltage < 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, e.g. for Ex "d" and "nA", permanent cables must be laid.
Safety notes
2.3 Installation in hazardous area
15