Siemens SITRANS FC430 Bedienungsanleitung Seite 13

WARNING
Connecting device in energized state
Danger of explosion in hazardous areas.
● Connect devices in hazardous areas only in a de-energized state.
Exceptions:
● Circuits of limited energy may also be connected in the energized state in hazardous areas.
● Exceptions for type of protection "Non-sparking nA" (Zone 2) are regulated in the relevant certificate
WARNING
Incorrect selection of type of protection
Danger of explosion in areas subject to explosion hazard.
This device is approved for several types of protection.
1. Decide in favor of one type of protection.
2. Connect the device in accordance with the selected type of protection.
3. In order to avoid incorrect use at a later point, make the types of protection that are not used permanently
unrecognizable on the nameplate.
Note
Electromagnetic compatibility (EMC)
You can use this device in industrial environments, households and small businesses.
For metal housings there is an increased electromagnetic compatibility compared to high-frequency radiation. This
protection can be increased by grounding the housing, see operating instructions.
Note
Improvement of interference immunity
● Lay signal cables separate from cables with voltages > 60 V.
● Use cables with twisted wires.
● Keep device and cables in distance to strong electromagnetic fields.
● Use shielded cables to guarantee the full specification according to HART.
● Connect a load resistor of at least 230 Ω in series in the signal circuit in order to guarantee fault-free HART
communication. When power supply isolators are used for SITRANS HART transmitters, a load resistor is already
installed in the device.
5 Commissioning
5.1 Basic safety instructions
WARNING
Improper commissioning in hazardous areas
Device failure or danger of explosion in hazardous areas.
● Do not commission the device until it has been mounted completely and connected in accordance with the information
found under technical data in the operating instructions.
● Before commissioning take the effect on other devices in the system into account.
SITRANS FC430 with HART (7ME4613, 7ME4603, 7ME4623, 7ME4713)
A5E03736889 -01, 03/2012
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