LI-COR LI-6400, Руководство пользователя

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Data Logging
AutoProgram Descriptions
9-24 Using the LI-6400
9
but only processed at 0.5 Hz, then that means they are accumulating in the
buffer at 4.5 Hz. After 1 minute there will be 250 sets of analog readings sit-
ting in memory waiting to be computed. Thus, the buffer size limits the length
of time that data can be logged.
¥
Not beeping on each log
Also, it doesnÕt update the obs count on the
LOG
function key label.
¥ Cheating on control algorithms
We skip doing the Òfine tuningÓ parts of the control algorithms (see Behind
The Scenes on page 7-4).
■ ■ ■ ■
Buffered AutoLog prompts for the following:
1 #Obs/sec (0.2 - 10)
How many readings per second do you want to record?
2 Logging duration (secs):
If you have selected a frequency greater than the instrument can keep up with
(causing data to accumulate in the buffer), and a time period that is longer
than the buffer can cover, you are warned and given the option of shortening
the logging period to that time. For example:
Readings may start to be skipped after
about 55 seconds. Shorten the period to
that? (Y/N)
While logging, Buffered AutoLog will update the display about every 5 sec-
onds, depending on how busy the processor is. The slower the logging rate,
the more often it can update the display. Keyboard response remains fairly
fast, however, and there should never be worse than about a one second delay.
Note that pressing a key forces a screen update.