Vaisala PTU300 Guide de l'utilisateur télécharger pdf (Page 49)

Chapter 3 _______________________________________________________________ Installation

VAISALA _______________________________________________________________________ 47

8. Connect the power.

9. Select the quantity and scale the channel via the serial line or

display/keypad, see section Analog Output Quantities on page

96. For testing the analog output, see section Analog Output

Tests on page 98. For fault indication setting, see section Analog

Output Fault Indication Setting on page 99.

Relays

PTU300 can be equipped with one or two configurable relay modules.

Each module contains two configurable relays. See the contact ratings

in section Technical Specifications of Optional Modules on page 148.

Installation and Wiring

1. Disconnect the power and open the transmitter cover. In case the

relay-module is installed in the factory, continue with step 5.

2. To attach the module fasten the relay module to the bottom of

the housing with four screws. See the position in Figure 2 on

page 17.

3. When the mains power is in use attach the grounding wire to the

grounding terminal.

4. Connect the flat cable between the relay module and the

MODULE 1 pins of the motherboard.

5. Take out the protective plug from the cable gland and thread the

relay wires.

6. Connect the wires to the screw terminals: NO, C, NC.

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Vaisala PTU300 Guide de l'utilisateur Page 49