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Connecting Gases HPVA Series Operator’s Manual
6-6 Mar 2011
Replacing Degas and Analysis Port O-Rings
Each of the ports, degas and analysis, contains an O-ring that must be present when degassing or ana-
lyzing a sample. Ensure that the O-ring is present before performing either procedure.
If an O-ring becomes worn or damaged, it should be replaced. A damaged O-ring may cause leaks at
the port, and inaccurate results.
O-ring
Connecting Gases
Guidelines for Connecting Gases to the Analyzer
Use these guidelines when installing regulators and gas lines:
• Place gas bottles close to the analyzer. Using gas line extenders on gas bottles located in remote
areas may degrade gas quality and reduce pressure.
• Use a retaining strap (or other appropriate tether) to secure the gas bottle.
• Carefully route the gas lines from the bottle to the analyzer,; avoid overlapping or entangling lines.
• Label the gas line at the instrument inlet for proper identification and maintenance.
• Ensure that the gas bottle is closed before connecting to the analyzer.
The following instructions describe a typical installation. Some configurations require additional
components, such as regulator expansion kits, when one gas source will be used for several operations
or when the gas bottle cannot be located close to the analyzer.