3M Dynapro ET 350 Monitor User’s Installation Guide
All ET 350 monitor units have the standard features described above. The distinctive features of each model are described below and summarized in Table A.
ET 350R monitor (NEMA 4X panel gasket)The ET 350R monitor has a UL Recognized component mark. It comes with a gasket that mounts between the monitor and a wall or panel (Figure 2).
Figure 2: NEMA 4X panel gasket (comes with ET 350R)
The ET 350R monitor is suitable for Pollution Degree 3 environments if installed and tested with the panel gasket in an enclosure that meets NEMA 4X/IP66 ratings. If the ET 350R monitor is not mounted in such an enclosure or mounted without the gasket, the unit is suitable for Pollution Degree 2 environments.
ET 350L2 monitor (no gasket or hatch)The ET 350L2 monitor comes with neither a gasket nor a hatch. This model is UL Listed for Pollution Degree 2 environments and can perform as a
The ET 350L3 monitor comes with a NEMA 4X hatch (and extended hatch cover) to seal both communication and power connections (Figure 3).
When properly installed with the materials supplied, the hatch provides a NEMA 4X/IP66 seal on all sides and the monitor is UL Listed for Pollution Degree 3 environments.
The ET 350L3 monitor may be used as a
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