Teledyne T802 7.1. DAS STRUCTURE

Teledyne API T802 Paramagnetic O2 Analyzer Operation Manual
139
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..
7.1. DAS STRUCTURE
The DAS is designed around the feature of a “record”. A record is a single data
point. The type of data recorded in a record is defined by two properties:
 PARAMETER type that defines the kind of data to be stored (e.g. the
average of gas concentrations measured with three digits of precision). See
Section 7.1.4.3.
 A TRIGGER event that defines when the record is made (e.g. timer; every
time a calibration is performed, etc.). See Section 7.1.4.2
The specific PARAMETER and TRIGGER events that describe an individual
record are defined in a construct called a DATA CHANNEL. Each data channel
relates one or more parameters with a specific trigger event and various other
operational characteristics related to the records being made (e.g. the channel’s
name, number of records to be made, time period between records, whether or not
the record is exported via the analyzer’s RS-232 port, etc.).
7.1.1. DAS CHANNELS
The key to the flexibility of the DAS is its ability to store a large number of
combinations of triggering events and data parameters in the form of data
channels. Users may create up to 50 data channels and each channel can contain
one or more parameters. For each channel, the following are selected:
 One triggering event is selected
 Up to 50 data parameters, which can be the shared between channels.
 Several other properties that define the structure of the channel and allow the
user to make operational decisions regarding the channel.
07275B DCN6418