Connecting
5.2 Connecting SITRANS LR250
SITRANS LR250 with mA/HART
40 Operating Instructions, 10/2019, A5E32220602-AG
5.2 Connecting SITRANS LR250
Incorrect connection to power source
Risk to personnel, system and environment can result from improper power connection.
• The DC input terminals shall be supplied from a source providing electrical isolation
between the input and output, in order to meet the applicable safety requirements of
IEC 61010-1. For example, Class 2 or Limited Energy Source.
• All field wiring must have insulation suitable for rated voltages.
Loss of approvals can result from improper connection.
• Check the nameplate on your device, to verify the approval rating.
• Use appropriate cable entry seals to maintain IP or NEMA rating.
• See Wiring setups for hazardous area installations (Page 42).
Improper cables and conduit
• Separate cables and conduits may be required to conform to standard instrumentation
wiring practices or electrical codes.
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