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7. DATA ACQUISITION SYSTEM (DAS) AND APICOM
The T100 analyzer contains a flexible and powerful, internal data acquisition system
(DAS) that enables the analyzer to store concentration and calibration data as well as a
host of diagnostic parameters. The DAS of the T100 can store up to about one million
data points, which can, depending on individual configurations, cover days, weeks or
months of valuable measurements. The data are stored in non-volatile memory and are
retained even when the instrument is powered off. Data are stored in plain text format
for easy retrieval and use in common data analysis programs (such as spreadsheet-type
programs).
The DAS is designed to be flexible, users have full control over the type, length and
reporting time of the data. The DAS permits users to access stored data through the
instrument’s front panel or its communication ports. Using APICOM, data can even be
retrieved automatically to a remote computer for further processing.
The principal use of the DAS is logging data for trend analysis and predictive
diagnostics, which can assist in identifying possible problems before they affect the
functionality of the analyzer. The secondary use is for data analysis, documentation and
archival in electronic format.
To support the DAS functionality, Teledyne API offers APICOM, a program that
provides a visual interface for remote or local setup, configuration and data retrieval of
the DAS. The APICOM manual, which is included with the program, contains a more
detailed description of the DAS structure and configuration, which is briefly described
in this section.
The T100 is configured with a basic DAS configuration, which is enabled by default.
New data channels are also enabled by default but each channel may be turned off for
later or occasional use. Note that DAS operation is suspended while its configuration is
edited through the front panel. To prevent such data loss, it is recommended to use the
APICOM graphical user interface for DAS changes.
The green SAMPLE LED on the instrument front panel, which indicates the analyzer
status, also indicates certain aspects of the DAS status, as described in Table 7-1
06807C DCN6650