TRACE 1310 Auxiliary Oven: Split Fitting for Auxiliary Gas - Installation Note

Importance of the Topic

Controlling split flow in gas chromatography is crucial for precise sample introduction and reproducible results. Implementing a split fitting using available auxiliary gas channels enhances flexibility and resource utilization in analytical workflows.

Objectives and Overview of the Note

This installation note describes the procedure for integrating the TRACE 1310 Auxiliary Oven split option kit P/N 19071018. The goal is to enable one auxiliary gas channel to function as a split flow controller via a splitter and flow restrictor.

Instrumentation Used

The setup involves:

• TRACE 1310 Gas Chromatograph with Auxiliary Oven module
• Auxiliary gas module providing three pressure/flow channels
• Splitter fitting and 1 m, 0.5 mm i.d. flow restrictor
• Charcoal trap and associated gas inlet fittings (M5, 1/8″ cap)

Methodology

The installation steps include:

• Power off and remove oven covers to access auxiliary and main oven interiors
• Plug the existing gas inlet port with the supplied 1/8″ cap
• Swap the M5 cap for the M5 gas inlet fitting to connect the splitter
• Position the splitter, flow restrictor, and charcoal trap inside the auxiliary oven per the pneumatic schematic
• Ensure the flow restrictor resides in the heated oven to maintain stable flow

Key Results and Discussion

The procedure allows straightforward retrofit of split flow control without modifying the main GC gas lines. Visual examples demonstrate installation views. Emphasis is placed on maintaining temperature around the flow restrictor to guarantee flow stability and reproducibility.

Benefits and Practical Applications

• Utilizes existing auxiliary gas channels to expand injector capabilities
• Offers flexible placement of splitter and restrictor within the oven
• Maintains regulated temperature for consistent split ratios
• Simplifies installation with minimal hardware changes

Future Trends and Potential Applications

As gas chromatography evolves, leveraging auxiliary modules for multi-flow control and automated switching between injection modes may enhance throughput. Customizable split arrangements and integration with advanced control software represent promising directions.

Conclusion

Integrating the split fitting kit into the TRACE 1310 Auxiliary Oven provides a cost-effective approach to adding split flow control. The clear installation procedure and emphasis on temperature regulation ensure reliable performance and broaden analytical flexibility.