Teledyne GFC7001T User Manual download pdf (Page 163)

DAS and APICOMTeledyne API – Model T300/T300M CO Analyzer

Teledyne Analytical Instruments

7. DATA ACQUISITION SYSTEM (DAS) AND APICOM

The GFC7001T/GFC7001TM 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

GFC7001T/GFC7001TM 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 is stored in non-volatile memory and is retained even when the

instrument is powered off. Data is 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.

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, TAI 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

manual.

The GFC7001T/GFC7001TM is configured with a basic DAS configuration, which is

enabled by default. New data channels are also enabled by default at their creation, but

all channels may be turned off for later or occasional use.

The green SAMPLE LED on the instrument front panel, which indicates the analyzer

status, also indicates certain aspects of the DAS status:

Table 7-1: Front Panel LED Status Indicators for DAS

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.

Sampling normally.

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Teledyne GFC7001T User Manual Page 163