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7. DATA ACQUISITION SYSTEM (DAS & APICOM

The T803 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 T803 can store
several months of data, depending on how it is configured.. 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.
Note The DAS can be disabled only by disabling or deleting its individual data
channels.

7.1. SETUP DAS: USING THE DATA ACQUISITION

SYSTEM (DAS)

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 (included with the program),
contains a more detailed description of the DAS structure and configuration,
which is briefly described here.
The T803 includes 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.
IMPORTANT IMPACT ON READINGS OR DATA
DAS operation is suspended whenever its configuration is edited using
the analyzer’s front panel and therefore data may be lost. To prevent
such data loss, it is recommended to use the APICOM graphical user
interface for DAS changes. Please be aware that all stored data will be
erased if the analyzer’s disk-on-module or CPU board is replaced or if the
configuration data stored there is reset..
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