Teledyne GFC-7000E - Trace CO2 Analyzer - Manual (Page 108)

Model GFC7000E Instruction Manual Operating Instructions
04584 Rev A1 97
or downloaded, edited and uploaded to the instrument in form of a string of plain-text lines
through the communication ports.
iDAS 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.
6.12.1.1. iDAS Channels
The key to the flexibility of the iDAS 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 (Table 6-22).
Table 6-22: iDAS Data Channel Properties
PROPERTY DESCRIPTION DEFAULT SETTING RANGE
NAME The name of the data channel. “NONE” Up to 6 letters and
digits (more with
APICOM, but only the
first six are displayed
on the front panel).
TRIGGERIN
G EVENT
The event that triggers the data channel to
measure and store its data parameters. See
APPENDIX A-5 for a list of available triggering
events.
ATIMER See Appendix A-5 For
a complete list.
NUMBER &
PARAMETER
LIST
A User-configurable list of data types to be
recorded in any given channel. See APPENDIX
A-5 for a list of available parameters
1 – DETMES See Appendix A-5 For
a complete list.
STARTING
DATE
The starting date when a channel starts
collecting data 01-JAN-03 Any actual date in the
past or future.
SAMPLE
PERIOD The amount of time between each data point
that is averaged into one mean reported every
REPORT PERIOD.
000:01:00 000:00:01 to
366:23:59
(Days:Hours:Minutes)
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.
When enabled here – there is also a length of
the DAS HOLD OFF after calibration mode,
which is set in the VARS menu
OFF OFF or ON
(Section 6.12.2.11.)