30497 TGA Sampling System
Features 12 Air Sample Inlets and 4 Calibration Inlets
weather applications water applications energy applications gas flux and turbulence applications infrastructure applications soil applications


The TGA Custom Sampling System is used with a trace-gas analyzer in low-flow applications such as gradient flux or chamber measurements.  The main kit comprising part number 30497 includes the components and materials used to build a custom sampling system. The system features a manifold with 12 inlets for measuring sample air and 4 inlets for measuring calibration gases. The manifold is designed to deliver sample air from a selected inlet to the TGA and excess flow outlet, while maintaining air flow from all other sample inlets through a bypass. This constant flow allows the system to quickly reach equilibrium after switching valves. Conversely, a calibration gas inlet is only used when the calibration gas is flowing to the analyzer, thus conserving the calibration gases.

The system ships in an ENC16/18 fiberglass enclosure and includes a valve manifold, pressure sensors, and flow sensors. The 30497 should also be ordered with an SDM-CD16S to control the valves, a CR3000, an NL116, and an appropriate sample dryer such as the PD1T. Most configurations also require a sample delivery pump and an analyzer pump. Contact Campbell Scientific to configure a sampling system for your application.


30497 TGA Sampling System
30497 TGA Sampling System
30497 TGA Sampling System
The 30497 is used with the TGA200A Trace Gas Analyzer (shown here and sold separately).

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