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MODEL 1000
B.2
INSTALLATION AND LINE PURGING
To install and purge the dual-bottle carrier gas manifold, proceed as follows:
(1)
Install manifold as shown in Figure B-1. Close all valves and tighten all fittings. Run tubing
to Analyzer, but do not connect.
(2)
Back off pressure regulator (counterclockwise) fully.
(3)
Open cylinder valve for Carrier Cylinder 1. The pressure indicator will read the cylinder
pressure.
(4)
Open the shut-off valve attached to the carrier regulator.
(5)
Regulate pressure out of the cylinder to 20 psig, then close the cylinder valve.
(6)
Open V-1 (bleed valve) and let the carrier gas bleed to atmosphere until both gauges read 0
psig, then close V-1.
(7)
Repeat steps (4) and (5) two more times to purge the line to V-2.
(8)
Purge the line to V-3 by repeating steps (2) through (6); but this time, use bleed valve V-4
and Carrier Cylinder 2.
(9)
With valves 1-4 closed, open both cylinder valves and regulate both carriers to approximately
10 psig.
(10)
Open V-2 and V-3 simultaneously, then turn both cylinder valves off and let the carrier
gasses bleed through the line to the Analyzer until all gauges read 0 psig.
(11)
Repeat steps (8) and (9) two more times to purge line to Analyzer.
(12)
Close V-3, leave V-2 open.
(13)
Open cylinder valve of Carrier Cylinder 1 and, with carrier gas flowing at 10 psig or below,
connect carrier line to Analyzer.
(14)
Slowly regulate Carrier Cylinder 1 to 110 psig.
MANIFOLD FOR TWO CARRIER GAS BOTTLES TO GC SYSTEM
SEP 2005
B-3
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Troubleshooting
