Vaisala DRYCAP DMT340 SERIES Guide de l'utilisateur Page 35

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Chapter 3 ________________________________________________________________ Installation
VAISALA ________________________________________________________________________ 33
1. Open the transmitter cover by taking out the four cover screws.
2. Insert the power supply wires and signal wires through the cable
bushing in the bottom of the transmitter; see the grounding
instructions in the previous sections.
3. Connect the analog output cables to terminals: Ch1 +, Ch1-, Ch2+,
Ch2-. Connect the RS-232 user port cables to terminals RxD, GND
and TxD. See section User Port Connection on page 83.
4. When wiring the optional modules, see the corresponding section
for instructions:
- RS-422/485 Interface on page 60
- Alarm Relays on page 58
- Third Analog Output on page 56
- LAN Interface on page 64
- WLAN Interface on page 65
5. Connect the power supply wires to the connectors: POWER
10...35V+ 24V
(+) and (-) terminals. (If using AC voltage,
connect always phase to power supply (+) and 0 to power supply
(-)). When wiring the power supply module, see section Power
Supply Module on page 51.
6. Turn on the power. The indicator LED on the cover is lit
continuously during normal operation.
7. Close the cover and replace the cover screws. The transmitter is
ready for use.
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