4Sample Gas Handling
Installing Sample Inlets
44 Agilent 990 Micro GC User Manual
Installing Sample Inlets
Each Agilent 990 Micro GC can be outfitted with two sample inlets for up to two types of sample.
Each hexagonal sample inlet mainfold has one inlet port and four output ports.
•Front Injection- The external tubing for sample is connected directly from the front of the GC
without going through accessories. The inlet port is at center of the manifold.
Installing and configuring a sample inlet manifold
There are many configurations for inlet tubing. The following steps outline the process of
installing the sample inlet manifold with one channel. See the section Sample inlet
configurations on page 46 for more information.
1 Unscrew and remove the Torx T-10 screw at the top of the front cover, and remove the front
cover.
Figure 14. Sample inlet manifold
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