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Section II Operating Instructions Teledyne API T802 Paramagnetic O
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Analyzer Operation Manual
140
Table 7-2: DAS Data Channel Properties
PROPERTY DESCRIPTION
DEFAULT
SETTING
SETTING RANGE
NAME
The name of the data channel.
“NONE”
Up to 6 letters or digits
1
TRIGGERING
EVENT
The event that triggers the data channel to measure
and store the datum
ATIMER
Any available event
(see Appendix A-5).
NUMBER AND
LIST OF
PARAMETERS
A User-configurable list of data types to be
recorded in any given channel.
1
(PMTDET)
Any available parameter
(see Appendix A-5).
REPORT PERIOD
The amount of time between each channel data
point.
000:01:00
(1 hour)
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 limit is exceeded, the oldest data is
over-written.
100
1 to 30,000 (max), limited
by available storage
space.
2
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. Allows a channel
to be temporarily turned off without deleting it.
ON
OFF or ON
CAL HOLD OFF
Disables sampling of data parameters while
instrument is in calibration mode.
3
OFF
OFF or ON
1
More with APICOM, but only the first six are displayed on the front panel).
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For information regarding the maximum number of channels, parameters, and records and how to calculate the file size for each data
channel, refer to the DAS manual downloadable from the TAPI website at http://www.teledyne-api.com/manuals/ under Special
Manuals.
3
When enabled records are not recorded until the DAS HOLDOFF period is passed after calibration mode. DAS HOLDOFF SET in the
VARS menu (see Section
5.8.)
7.1.2. DEFAULT DAS CHANNELS
CONC: Samples O
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concentration at one minute intervals and stores an average
every hour with a time and date stamp. Readings during calibration and
calibration HOLD OFF are not included in the data. By default, the last 800
hourly averages are stored.
PNUMTC: Collects sample flow and sample pressure data at five-minute
intervals and stores an average once a day with a time and date stamp. This data
is useful for monitoring the condition of the pump and critical flow orifice
(sample flow) and the sample filter (clogging indicated by a drop in sample
pressure) over time to predict when maintenance will be required. The last 360
daily averages (about 1 year) are stored.
CALDAT: Data channel logs new slope and offset of O
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measurements each
time a zero or span calibration is performed and the result changes the value of
the slope (triggering event: SLPCHG). The O
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stability (to evaluate if the
calibration value was stable) as well as the converter efficiency (for trend
reference) are also stored.
This data channel will store data from the last 200 calibrations and can be
used to document analyzer calibration; it also is useful for detecting trends in
slope and offset (instrument response) when performing predictive
diagnostics as part of a regular maintenance schedule.
07275B DCN6418