Connecting Sitrans Lr200 - Siemens SITRANS LR200 Compact Operating Instructions

Radar transmitters

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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 SITRANS LR200 (Page 21).

4.2

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 23).

• 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.

SITRANS LR200

Compact Operating Instructions, 05/2019, A5E46957579-AD

WARNING

to 2.5 mm

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