SEP 2005 MODEL 1000
MAINTENANCE
5-22
Do not use the "Carrier Pressure Adjust" valve (on the Flow Panel of the Analyzer) to adjust
carrier gas line pressure. That valve is factory-set and should not be adjusted.
(b) Toggle each Analyzer Valve switch to OFF and ON positions about four to five times
(Analyzer Valve switches are in the upper purged enclosure.)
(4) Pressurize and check the carrier gas feed line, as follows:
(a) Set all Analyzer Valve switches to the ON position.
(b) Open the carrier gas bottle valve, and ensure that the carrier gas feed line pressure is
110 pounds per square inch gauge (psig), ±2%.
(c) Shut the carrier gas supply bottle valve.
(d) Observe the pressure on the high-side regulator gauge of the bottle. Because the
"MV" vent line is plugged, the pressure should not decrease during a period of 2-3
minutes.
(e) Set all Analyzer Valve switches to the OFF position.
(f) Repeat steps (4)(b) through (4)(d)
(g) Set all Analyzer Valve switches to the AUTO position for regular operation.
(5) This completes the carrier gas line leak check. Next, leak check the calibration gas feed
line, according to the steps that follow.
To Next Page
Loading...
