Welker ESSENTIALS AD681BK, Installation, Operation And Maintenance Manual

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2. Lay the Essentials™ Gas Sampler on a smooth, clean surface.
3. Undo the enclosure clasps and open the enclosure door ( Figure 4 ).
Figure 4: Opening the Enclosure
4. If applicable, turn the knobs on the front panel counterclockwise to loosen them, and then open the front panel ( Figure
4 ).
Gauge Assembly
5. Wrap the exposed threads on the gauge assembly with PTFE tape ( Figure 3 ).
6. Install the gauge assembly to purge valve B ( Figure 5 ).
Figure 5: Installing the Gauge Assembly
7. Using a crescent or pipe wrench, tighten the gauge assembly. Ensure that the pressure gauge face is upright and that
the tube elbow is on top.
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IOM-222 MODEL: ESSENTIALS™ GAS SAMPLER REV: A 13839 West Bellfort Street, Sugar Land, TX 77498 welker.com Service Department 281.491.2331