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GMR20 relay output module U305en-1.1

MOUNTING

The GMR20 is an optional relay output module to be used with the GM20 series

transmitters.

1. Open the transmitter cover.

2. Pull the two output wires through the hole at the bottom of the housing.

When connecting them to the screw terminal of the GMR20, hold the

module in one hand and make connections with the other (see Figure 1).

Check that the nominal 24 V supply is connected between terminals +

and - of the transmitter's mother board.

Figure 1 Connecting the wires to the GMR20 module

3. Install the module on the two 5-pin connectors as indicated in Figure 2.

Figure 2 Installing the GMR20 module

4. Close the transmitter cover.

1 2

GMR20 relay output module U305en-1.1

GMR20 relay output for GM20 series

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Vaisala GMR20 Manuale Utente