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The EA100 will now display “READY” on the left side of the display. (If it doesn’t you
must have a heavy finger and hit trigger more than once.) Hit halt, restart to return to the
“READY” position. Ready means that the EA100 is configured correctly, the sample
rate, and number of samples has been chosen, and that it is ready to sample data.
Keystrokes:
5. If READY is displayed, and you would like to start the EA100 to sample data, push
trigger. The word “SAMPLING” should be displayed on the left side of the EA100.
The EA100 will now be recording and sampling data from the probes that are plugged in.
Suggested Student Activity: In order for the students and workshop participants to
become comfortable with the data log setup you must practice it several times. A
neat experiment to do is to have them measure the rate of cooling of a glass of water
using the temperature probe. I will assume that this is done, because we will use this
data to introduce the idea of linking and transferring data from the EA100 to the
graphing calculator.
Keystroke Summary for Setting up the EA100 to use as a data logging device:
1. On or Halt Turns the EA100 on and into communications mode.
2. Shift, Mode (Setup) Enters into the setup area, and ready to choose sample rate
3. Data log (Repeatedly) Allows you to toggle through available choices for sample rate
4. Trigger Chooses the sample rate, and brings you to # of samples
5. Data log (Repeatedly) Allows you to toggle through the choices for # of samples
6. Trigger Chooses the # of samples, and takes you to time definition area
7. Data log (Repeatedly) Toggles from 0,1,2 which are choices for time definition.
8. Trigger Chooses the time definition (Usually 1 is appropriate.)
Ready should now be displayed. The EA100 is ready to sample data.
9. Hit Trigger again and you will start sampling data.
10. Halt allows you to stop sampling.
11. Restart will initialize or resetup the Data Logger to the last chosen sample rate &
time.
Done will be displayed in the left of the screen once all the samples have been taken.
12. Data log allows you to toggle through each of the data samples.
13. Channel view switches you between channels if other probes are connected.
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