© 2000, 2003 T
EXAS
I
NSTRUMENTS
I
NCORPORATED
G
ETTING
S
TARTED WITH THE
CBL 2™ S
YSTEM
61
6.
Press
À
SETUP to go to the setup screen.
7.
Press
}
or
†
on the calculator to move the cursor to
MODE and press
Í
.
8.
Press
Â
EVENTS WITH ENTRY.
9.
Press
À
OK to return to the Main Screen.
10.
Connect the leads of the TI voltage sensor to the penny and washer before
inserting them into the fruit to be tested. Securely connect the red lead (+) on
the penny (copper) and the black lead (
.
) on the washer (zinc). You want to see
if the metals will create a charge without the electrolyte. This is a control for the
experiment to see what happens when you do nothing.
Collect the Data
1.
Press
Á
START to begin data collection.
2.
Touch the penny and washer together to take the
control reading. This number should be about 0 V. Press
Í
on the calculator to take the data point and press
Ê
when prompted by the calculator.
3.
Now, insert the penny and washer into fruit number 1. The voltage reading
should change on the calculator screen. Press
Í
on the calculator to take the
data point and key in
À
when prompted.
4.
Repeat this process until you have collected data for all of your fruit. When the
last data point is collected, press the
¿
button on the calculator to end data
collection.
5.
The graph of your data is displayed on your calculator screen.
