DAC and APICONTeledyne API – Model T300/T300M CO Analyzer
Teledyne Analytical Instruments 173
Each data parameter has user-configurable functions that define how the data are
recorded (refer to Table 7-3).
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 PPB”
Setting 0; “400 PPB”
STORE NUM SAMPLES OFF: Stores only the average (default).
ON: Stores the average and the number of samples in 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 specify up to 50 parameters per data channel (the GFC7001T/GFC7001TM
provides about 40 parameters). However, the number of parameters and channels is
ultimately limited by available memory.
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.