Siemens SITRANS T4200, Operating Instructions Manual

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SITRANS TH200/TH300
Operating Instructions, 06/2010, A5E00393069-03
23
Connecting
5
5.1 Safety notes on the connection
5.1.1 General safety notes on the connection
Note
To improve the resistance:

Lay signal cables separately from cables with voltages > 60 V.

Use cables with twisted wires.

Avoid getting too close to large electrical systems or use shielded cables.

Use shielded cables to ensure the full specification according to HART, revision 5.9 in
SITRANS TH300.

Use only cable entries and covers that are approved for the relevant use.
 At an ambient temperature T ≥ 60°C, use heat-resistant cables approved for an ambient
temperature of at least 20 K higher.

Use cables with wires that have a maximum cross-sectional area of 2.5 mm
2
.