3.3 Wiring
Read the product documentation carefully before installing or
operating the product. If you encounter the following marking during
installation or operation, consult product documentation to find out the nature
of the potential hazards and any actions which have to be taken to avoid them:
WARNING!
Make sure that you prepare and connect only de-energized wires.WARNING!
For field wiring terminals, use copper wiring only.
• Allen key (4 mm) for opening the transmitter cover
• Open-ended wrenches of sizes 17 mm, 19 mm, 22 mm and 24 mm
• Flat head screwdriver
• Cable glands as required by your application (available from Vaisala)
• Cables as required by your application (probe connection cables and power
cables are available from Vaisala)
3.3.1 Power supply terminals and lead-through − PELV option
Connect only cables with temperature rating of minimum +80 °C
(+176 °F) to the PELV power supply terminal.
WARNING!
INDIGO510 and INDIGO520 PELV version transmitters shall be
supplied by an isolated power source which fulfills the requirements of 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 62368-1, Annex Q
• Class 2 supply source which complies with the National Electrical Code (NEC),
NFPA 70, Clause 725.121 and Canadian Electrical Code (CEC), Part I, C22.1
CAUTION!
Chapter 3 – Installation
35
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