SITRANS LR200 with mA/HART
30
Operating Instructions, 05/2019, A5E32337676-AE
WARNING
Unprotected cable ends
Risk of explosion through unprotected cable ends in hazardous areas.
•
Protect unused cable ends in accordance with IEC/EN 60079-14.
WARNING
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
2
to 2.5 mm
2
).
•
Separate cables and conduits may be required to conform to standard instrumentation
wiring practices or electrical codes.