Vaisala DRYCAP DMT345 Guide de l'utilisateur Page 43

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Chapter 3 _______________________________________________________________ Installation
VAISALA _______________________________________________________________________ 43
5. Connect the power supply wires to the connectors:
POWER 10 ... 35 V = 24 V (+) and (–) terminals. ( If using AC
voltage, always connect phase (~) to power supply (+) and 0 to
power supply (–) ). When wiring the power supply module, see
section Power Supply Module on page 45.
6. Turn on the power. The indicator led on the cover lit continuously
during normal operation.
7. Close the cover and replace the cover screws. The transmitter is
ready for use.
Connections to a 24 VAC Power Supply
Separate floating supply for each transmitter is recommended (see the
upper part of Figure 27 on page 44). If you have to connect several
transmitters or other instruments to one AC supply, the phase (~) must
always be connected to the (+) connector of each transmitter (see the
lower part of Figure 27).
CAUTION
24 VAC POWER SUPPLY USE
To prevent fire and/or damage, if either 24 VAC wire is grounded or
connected to a "-", "0", or "GND" terminal of any other device, you
must connect the same wire on the "-" terminal also on this
instrument.
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