Vaisala GMR20 - Manual

GMR20 relay output module U305en-1.1
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.