3.3 Wiring
• Cables as required by your application
• Crimping tool and wire ferrules
• Small crosshead screwdriver for the screw terminals
• Utility knife
• Suitable tools for tightening the cable glands, conduits and/or plugs required
by your application
Only licensed experts may install electrical components. They
must adhere to local and state legislation and regulations.
WARNING!
Make sure that you prepare and connect only de-energized wires.WARNING!
Safety requirements for power supply
Make sure that the power supply unit for the transmitter is an
isolated power source that fulfills the requirements of the one of the following:
• Limited-Energy Circuit (LEC) in accordance with IEC/EN/UL/CSA 61010-1
• Limited Power Source (LPS) in accordance with IEC/EN/UL/CSA 60950-1 or
IEC/EN/UL/CSA 62328-1, Annex Q
• Class 2 supply source that complies with the National Electrical Code (NEC),
NFPA 70, Clause 725.121 and Canadian Electrical Code (CEC), Part 1, C22.1.
CAUTION!
Make sure to use the power supply unit only in its specified
environmental conditions.
CAUTION!
If you are using a 24 V AC power supply for the transmitter, make sure to use
separate cables for the AC power and the analog outputs to ensure that the EMC
requirements are fulfilled.
Chapter 3 – Installation
21
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