User manual VAISALA GML20T LONWORKS INSTALLATION

[. . . ] GML20T LonWorks® module MOUNTING AND INSTALLATION The GML20T LonWorks® interface module enables communication between a LonWorks® network and a GMW21 transmitter over a twisted pair. [. . . ] When connecting them to the screw terminal marked 'NET' of the GML20T, hold the module in one hand and make connections with the other (see Figure 1). Note that as all NDIR transmitters consume power, an additional power supply is always needed. Check that the nominal 24 V supply is connected between terminals + and - on the transmitter's mother board. Analogue output signals can be used simultaneously with the LonWorks® module. Figure 1: Hold the module in hand while connecting the wires 3. Install the module on the 2- and 5-pin connectors as indicated in Figure 2. Make sure that the wires are between the module and the transmitter board before pressing the module in place. Figure 2: Installing the GML20T module 1 GML20T LonWorks® module 4. Configure the transmitter using a suitable installation software (an external interface file is also available as an option). [. . . ] Exceptional operating conditions, damage due to careless handling and misapplication will void the guarantee. 2 [. . . ]