Texas Instruments CBL 2, Руководство по началу работы

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© 2000, 2003 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
G
ETTING
S
TARTED WITH THE
CBL 2™ S
YSTEM
51
10.
We now must choose the most appropriate data collection mode for this
experiment. In this case, we want to use Selected Events. Press
· SELECTED
EVENTS .
Note: In this mode, each time you press Í while collecting data, the CBL 2 captures a data
point for each probe connected to the unit.
11.
After making your choice, the setup screen appears. Press
À
OK to return to the DataMate Main Screen (shown on
the right).
CBL 2 is set up to start collecting your data.
Collect the Data
1.
Press
Á
START. A screen similar to this will appear.
2.
Follow the directions on the screen by pressing
Í
to collect your first two
data points, one in °C and one in °F.
Note: Your goal is to collect about 10 data points of varying temperatures.
3.
Add a few ice cubes to the water, stir with the temperature sensor, and wait
about 5 seconds. Watch the calculator screen as the temperature falls, and when
ready, press
Í to collect another data point.
4.
Continue this process as the Celsius temperature approaches freezing. You may
need to allow more than 10 seconds between samples to allow the water to get
close to 0 degrees Celsius.
5.
After you have collected 10 points, press
¿
to stop collecting data.
6.
Press
À
MAIN SCREEN to continue with the next step in
the investigation.