Teledyne T200 Operation Manual page 163

Teledyne API – T200 NO/NO
7.1.3.5. REPORT PERIODS IN PROGRESS WHEN INSTRUMENT IS POWERED OFF
7.1.3.6. EDITING THE NUMBER OF RECORDS
06858E DCN7057
/NO Analyzer Operation Manual Data Acquisition System (DAS) and APICOM
2 X
If the instrument is powered off in the middle of a REPORT PERIOD, the samples
accumulated during that period are lost. Once the instrument is turned back on, the DAS
restarts taking samples and temporarily stores them in volatile memory as part of the
REPORT PERIOD currently active at the time of restart. At the end of this REPORT
PERIOD, only the sample readings taken since the instrument was turned back on will
be included in any AVG, SDEV, MIN or MAX calculation.
The STORE NUM SAMPLES feature will also report the number of sample readings
taken since the instrument was restarted.
The number of data records in the DAS is limited by its configuration (one megabyte of
space on the DOM). However, the actual number of records is also limited by the total
number of parameters and channels and other settings in the DAS configuration. Every
additional data channel, parameter, number of samples setting etc. will reduce the
maximum amount of data points. In general, however, the maximum data capacity is
divided amongst all channels (max: 20) and parameters (max: 50 per channel).
The DAS will check the amount of available data space and prevent the user from
specifying too many records at any given point. If, for example, the DAS memory space
can accommodate 375 more data records, the ENTR button will disappear when trying
to specify more than that number of records. This check for memory space may also
make an upload of a DAS configuration with APICOM or a terminal program fail, if the
combined number of records would be exceeded. In this case, it is suggested to either
try to determine what the maximum number of records available is using the front panel
interface or use trial-and-error in designing the DAS script or calculate the number of
records using the DAS or APICOM manuals.
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