Teledyne T802 - page 149

Teledyne API T802 Paramagnetic O2 Analyzer Operation Manual
147
diagnostic measurements as well as calibration data such as stability, slope and
offset.
Most data parameters have associated measurement units, such as mV, ppb,
cm³/min, etc., although some parameters have no units (e.g. SLOPE). With the
exception of concentration readings, none of these units of measure can be
changed.
Note DAS does not keep track of the units (i.e. %) of each concentration value;
therefore, DAS data files may contain concentrations data recorded in more
than one type of unit if the units of measure was changed during data
acquisition.
Each data parameter has user-configurable functions that define how the data are
recorded:
Table 7-3: DAS Data Parameter Functions
FUNCTION EFFECT
PARAMETER Instrument-specific parameter name.
SAMPLE MODE INST: Records instantaneous reading.
AVG: Records average reading during reporting interval.
SDEV: Records the standard deviation of the data points recorded during the reporting
interval.
MIN: Records minimum (instantaneous) reading during reporting interval.
MAX: Records maximum (instantaneous) reading during reporting interval.
PRECISION 0 to 4: Sets the number of digits to the right decimal point for each record.
Example: Setting 4; “399.9865 %”
Setting 0; “400 %”
STORE NUM.
SAMPLES
OFF: Stores only the average (default).
ON: Stores the average and the number of samples used to compute the value of the
parameter. This property is only useful when the AVG sample mode is used. Note
that the number of samples is the same for all parameters in one channel and needs to
be specified only for one of the parameters in that channel.
Users can build a channel by selecting desired parameters from the available
choices.
Data channels can be edited individually from the front panel without affecting
other data channels. However, when editing a data channel, such as during
adding, deleting or editing parameters, all data for that particular channel will be
lost, because the DAS can store only data of one format (number of parameter
columns etc.) for any given channel. In addition, a DAS configuration can only
be uploaded remotely as an entire set of channels. Hence, remote update of the
DAS will always delete all current channels and stored data.
To modify, add or delete a parameter, follow the instruction shown in Section
7.1.4 then press:
07275B DCN6418