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Teledyne API Model T360/T360M Operation Manual Operating Instructions
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4.7. SETUP DAS: USING THE DATA ACQUISITION
SYSTEM (DAS)
The T360 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 T360 can storeseveral
months worth of measurements, 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. 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 (Section 4.15.2.8). The APICOM manual, which is included
with the program
, contains a more detailed description of the DAS structure and
configuration.
The T360 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:
Table 4-6: Secondary Setup Mode Features and Functions
LED STATE DAS Status
OFF System is in calibration mode. Data logging can be enabled or disabled for this mode.
Calibration data are typically stored at the end of calibration periods, concentration data are
typically not sampled, diagnostic data should be collected.
BLINKING Instrument is in hold-off mode, a short period after the system exits calibrations. DAS
channels can be enabled or disabled for this period. Concentration data are typically disabled
whereas diagnostic should be collected.
ON
Sampling normally.
The DAS can be disabled only by disabling or deleting its individual data
channels.
07272B DCN6552