Connecting; Safety Information When Connecting - Siemens SITRANS TH100 Operating Instructions Manual

Connecting

5.1

Safety information when connecting

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
Unsuitable cables and/or cable glands
Danger of explosion in hazardous areas.
● Only use suitable cables and cable glands complying with the requirements specified in
● Tighten the cable glands in accordance with the torques specified in Chapter "Technical
● When replacing cable glands use only cable glands of the same type.
● After installation check that the cables are seated firmly.
Note
Improvement of interference immunity
● Lay signal cables separate from cables with voltages > 60 V.
● Use cables with twisted wires.
● Keep device and cables distant to strong electromagnetic fields.
● Use cables with wires that have a maximum cross-sectional area of 2.5 mm
SITRANS TH100
Operating Instructions, 09/2013, A5E00331168-04
WARNING
certificate
WARNING
Chapter "Technical data".
data".
5
.
2
17