Connecting Sitrans Lr200 - Siemens SITRANS LR200 7ML5422 Operating Instructions Manual

Unprotected cable ends
Risk of explosion through unprotected cable ends in hazardous areas.
• Protect unused cable ends in accordance with IEC/EN 60079-14.
Improper laying of shielded cables
Risk of explosion through compensating currents between hazardous area and the
non-hazardous area.
• Shielded cables that cross into hazardous areas should be grounded only at one end.
• If grounding is required at both ends, use an equipotential bonding conductor.
Note
Electromagnetic compatibility (EMC)
For metal housings there is an increased electromagnetic compatibility compared to high-
frequency radiation. This protection can be increased by grounding the housing, see
Connecting (Page 29).
5.2

Connecting SITRANS LR200

Note
• Check the nameplate on your instrument, to verify the approval rating.
• Use appropriate conduit seals to maintain IP or NEMA rating.
• See Nameplates for hazardous area installations (Page 33).
• Use a twisted pair cable: AWG 22 to 14 (0.34 mm
• Separate cables and conduits may be required to conform to standard instrumentation
wiring practices or electrical codes.
30
WARNING
WARNING
to 2.5 mm ).
2 2
SITRANS LR200 with mA/HART
Operating Instructions, 05/2019, A5E32337676-AE