The GML20T LonWorks® module is an interface module that enables communication between a LonWorks® network and a GMW21 transmitter. The GMW21 transmitter measures carbon dioxide, while the GML20T module measures temperature.
The GML20T LonWorks® interface module enables communication between a LonWorks® network and a GMW21 CO₂ transmitter, while also measuring temperature itself. This guide explains how to mount the module, connect network and power wires, and configure network variables.
Installation steps include opening the transmitter cover, routing the network wires to the ‘NET’ terminal, and securing the module on the 2‑ and 5‑pin connectors. Technical data such as network type, temperature accuracy, range, and warm‑up time are also listed.
| Network type | TP/FT-10 at 78 kbs |
|---|---|
| Temperature measurement accuracy | +0.5°C |
| Temperature measurement range | 0...445°C |
| Warm-up time | 30 min |
The module measures temperature from 0 °C up to 445 °C.
A warm‑up time of 30 minutes is required.