Teledyne 2120 - Trace Nitrogen in Argon Analyzer - Manual (Page 33)

Trace Nitrogen in Argon Analyzer Installation
Whenever a fitting on the sample system is opened, use a
new ferrule and cone or new gasket depending on the type
of fitting to secure a gas tight seal. Each fitting should be
leak checked whenever a connection has been opened or
disturbed in any manner.
3.5.1 Typical Sample System
A suggested sample system is shown in Figure 3-3. This system
allows you to switch the analyzer between zero or span calibrating
gases and the process gas streams quickly and efficiently without
disconnecting the analyzer and introducing air in the system.
Figure 3-3: Suggested Sample System
Teledyne Analytical Instruments
23