Siemens MicroSAM, Operating Instructions Manual, Page: 27 / 138

Description
3.6 Functions
MicroSAM
Operating Instructions, 06/2012, C79000-G5376-C560-07
25
3.6 Functions
Predefined analysis modules are used in your gas chromatograph.
The main feature of the analysis module is the in-line detection. With the in-line detection,
columns and thermal conductivity detectors (TCD) are connected in series so that
measurements are carried out at the points where the separation of components is optimum.
The thermal conductivity detectors are half-bridges without an actual reference. Pairs of
thermal conductivity detectors are combined into a complete bridge circuit such that signals
are never superimposed.
The type and serial number of the analysis module are engraved on the rating plate on the
breathing connector, e.g. A01 124 ES04 or higher. The supplement ES04 identifies product
version 4 of the analysis module.
From release version 9 (AS09) onwards of the MicroSAM basic unit, the version eLive is
produced. In this case the basic unit has an additional membrane valve function 5 for
purging the sample loop. This extension improves control of the injection pulse position.
The following diagrams show permissible combinations of basic devices and types of
analysis modules.
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*) Modules of type A can also be used. It is necessary to modify the basic device in this
case. The corresponding procedure can be found in Section Conversion of MicroSAM basic
device AS09 (Page 94).