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3 Gas chromatograph PGC 9300
A thermal conductivity detector detects the emergence of the components. There-
fore, a signal varying in length and height, a so-called peak, is generated for each
component. The area under the signal curve is a measurement for the correspond-
ing amount of substance.
Helium and argon are used as carrier gas in the measuring element. Two or three
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columns that operate in parallel are used for the separation.
The further evaluation of the area share takes place in the analytical computer
GC 9300.
If the PGC 9300 is used as a multi-streamer and requires more than 2 DSfG bus
connections, they can be provided with a gateway, the GC 9310. This can be seen
in Figure 5: Separation of Ex zones to the left above the analytical computer GC
9300.
Figure 5: Separation of Ex zones
Manual PGC 9300 EN07 June, 18th 2018
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