6 Gas Connections
n Carefully route the gas lines from the cylinder to the analyzer avoiding overlapping or
entangling gas lines. This will help avoid confusion when maintenance is required.
n Label the gas line at the analyzer inlet for proper identification and maintenance.
n Replace gas cylinders before gas is depleted. It is best to replace a gas cylinder when the pres-
sure reads approximately 500 psi (3500 kPa) on the high-pressure gauge. Contaminants
absorbed to the walls of the cylinder will desorb as the pressure decreases.
n Ensure the gas cylinder is closed before connecting to the analyzer.
6 - 2
Gemini VII 2390 Installation Instructions and Checklist
239-42870-02 Rev (B) — May 2021
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