Single Zone Gas Monitor8 P/N: 3015-4256 Rev 13Figure 2-1. Enclosure Mounting SpecsHold the monitor flat against the mounting surface and allow it to slide down engaging the screw heads inthe keyhole slots of the mounting brackets. Adjust the screws as necessary to hold the monitor securelyagainst the mounting surface.2.3. Connecting Gas Sample and Exhaust Lines2.3.1. OverviewA single gas-sample line must be run from the SZ unit to the area of the facility to be monitored. Anoptional exhaust line can be installed to vent the sample gas away from the monitor. All tubingconnections are made on the bottom of the enclosure as displayed in the illustration below.Figure 2-2. HGM-SZ Monitor Bottom View* There is an additional service knockout on top of the case.