Teledyne 6200T - Sulfides Analyzer - Manual (Page 158)

DAS and AICOM Model 6200T Total Sulfur Analyzer
Teledyne Analytical Instruments 158
7.1. DAS Structure
The DAS is designed around the feature of a “record”. A record is a single data point of
one parameter, stored in one (or more) data channels and generated by one of several
triggering event. The entire DAS configuration is stored in a script, which can be edited
from the front panel or downloaded, edited and uploaded to the instrument in form of a
string of plain-text lines through the communication ports.
DAS data are defined by the PARAMETER type and are stored through different
triggering EVENTS in data CHANNELS, which relate triggering events to data
parameters and define certain operational functions related to the recording and
reporting of the data.
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 20 data channels and each channel can contain one or more
parameters. For each channel one triggering event is selected and up to 50 data
parameters, which can be the same or different between channels. Each data channel has
several properties that define the structure of the channel and allow the user to make
operational decisions regarding the channel (refer to Table 7-2).
Table 7-2: DAS Data Channel Properties
Property Description Default Setting Range
NAME
The name of the data channel. “NONE” Up to 6 letters and digits
(more with AICOM, but only
the first six are displayed on
the front panel).
TRIGGERING
EVENT
The event that triggers the data channel to measure
and store its data parameters. Refer to APPENDIX
A-5 for a list of available triggering events. ATIMER Any allowed event.
NUMBER AND
LIST OF
PARAMETERS
A User-configurable list of data types to be
recorded in any given channel. Refer to APPENDIX
A-5 for a list of available parameters 1 - PMTDET Any available concentration,
temperature, pneumatic or
diagnostic parameter.
REPORT PERIOD The amount of time between each channel data
point.
000:01:00 000:00:01 to
366:23:59
(Days:Hours:Minutes)
NUMBER OF
RECORDS
The number of reports that will be stored in the data
file. Once the specified limit has been exceeded,
the oldest data are over-written to make space for
new data. 100 1 to 1 million, limited by
available storage space.
RS-232 REPORT Enables the analyzer to automatically report
channel values to the RS-232 ports.
OFF OFF or ON
CHANNEL
ENABLED
Enables or disables the channel. Provides a
convenient means to temporarily disable a data
channel. ON OFF or ON
CAL HOLD OFF
Disables sampling of data parameters while
instrument is in calibration mode.
Note that - when enabled here - there is also a
length of the DAS HOLD OFF after calibration
mode, which is set in the VARS menu (refer to
Section 7.2.11). OFF OFF or ON