A Guide To Using Casio’s EA100 Data Collection Device By Mark Thompson, Joe Schumaker, & Clay Moore
Table of Contents for EA100 Workshop Manual and Overview of Daily Activities (One Full Day) I. II. III. IV. V. VI. VII. VIII. IX. X. XI. Introduction Overview of Keypad and Display Using the Multimeter A. Selecting the Multimeter Area B. Student Interaction/Activity Using the Multimeter Using the Data Logger A. Entering the Data Log Mode B. Keystroke Summary for Setting Up Data Logger Using the Data Logger to Measure the Rate of Cooling Transferring Data To a Graphing Calculator A.
The Casio Data Analyzer is a digital instrument you can use to sample and collect data on various every day natural phenomena. The following sections provide information on using its probes and channels, and tell you how to connect it to a graphing calculator. I. Introduction Instructor Directions: In this section you will simply give a general overview of the capabilities of the EA100. You might give examples of situations, audience levels, or activities where it is appropriate to use the EA100.
II. Overview of Keypad, and Display Instructor Directions: The goal is to familiarize the user with the layout of the channels, display, and keypad of the EA100. Discuss the function of each of the keys of the EA100 as well as the display. Shift Channel View Mode Internal Halt Data Log On/Off Trigger Shift: Used to activate the yellow function keys, This button must be pushed first and then the corresponding secondary function key will be active and accessible.
Restart: This key will use the previously selected settings for sample rate, and numbers of samples, and then allow you to restart the sampling. On/Off: This turns the power on and off. The EA100 also has an auto power shut-off but will restart/boot up if a future sample needs to be taken. Mode: Mode switches you between the various modes, specifically from multimeter to communications, and Vice-versa.
III. Using the Multimeter The multimeter is used when sample rate and time are unimportant. (For example: if you are just taking random samples of temperature in different locations throughout a building.) The readings are noted visually by looking at the display and writing them down, or storing them in a list. The EA100 does not save the readings while in the multimeter area, it is only capable of displaying the data.
C. Testing For Comprehension about the Multimeter Mode Overview: Once again, point out when it is valuable to use the multimeter area, What audiences, situations, might this be beneficial. Repeat how to enter into the multimeter area. Discuss the limitations of this area. Questions to Ask to Reaffirm Understanding: 1. What unit or measurement is unimportant when using the multimeter? 2. How many channels can be sampled at a time? 3. Which probes are considered autosensing/sampling? 4.
IV. Using the Data Logger Instructor Directions: The goal of this section is to help the students become familiar with entering the data log area, choosing the rate of sampling and the number of samples. They will also learn how to view the data from the screen and how to transfer the data from the graphing calculator. The Data Logger setting is used when time is of importance. For example: When you want to measure, motion, change of temperature, change of pressure, etc. over a period of time.
We are now ready to choose the sample rate. There are many choices, (000sec, 10msec, 20msec, 50msec, 100msec, 200msec, 500msec, 1sec, 2sec, 5sec, 10sec, 20sec, 30sec, 60sec) Keystrokes: 1. To view each of these choices, simply hit the data log button repeatedly to toggle through each of the settings. Notice that you can remember that you are in the “sample rate menu” by noticing that a unit of time is always displayed. (milliseconds, or seconds.) 2.
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.
V. Using the Data Logger to Measure the Rate of Cooling (Suggested Student Activity) Instructor Directions: The goal here is to simply apply the data logger setting to a real world relationship. There are many labs which give extensive setup and directions as well as synthesis questions. Our goal is to simply help the students/workshop participants become comfortable with the EA100 Data Logger capability, and later will focus more on the relationships themselves.
VI. Transferring Data To Casio’s 9850G or 9850G+ graphing Calculator. Instructor Directions: We will now use the previously recorded data from the rate of cooling experiment to learn how to transfer this to the graphing calculator. The students will use the “Receive” command to bring time and temperature into the lists/statistics area of the graphing calculator. We will also set up a scatter plot, do some simple regressions, and then learn how to curve fit by saving the scatter plot as a background.
5. Optn Looking for the List Command 6. F1 Selects the List Folder 7. F1 Selects the List Command 8. 1 Tells the EA100 to put time in List #1 You should now have RECEIVE (LIST 1) on the screen of the 9850G. We are now ready to Execute this command. Hit the Blue Exe key to transmit this first set of data. 9. EXE Transmits the Time to List 1 Hopefully the display will now show DONE, on the Graphing Calculator.
B. Alternate Activity/Analyzing the Data Using the 9850G Graphing calculator. Instructors Directions: We will now set up a scatter plot in order to get a visual picture of the represented data. Have the calculator perform some simple regressions in order to fit the data. We will also save the scatter plot as a background and then try to fit a curve to the data, by typing in your own guess and see if it close. Setting Up a scatter plot on the 9850G.
Now we will practice curve fitting on top of the scatter plot. Remember to keep in mind the maximum and minimum y values or temperatures. (E.G.: Minimum 5, Maximum 25). Try and type in Y1=X+20. This will be a linear function that goes right through the scatter plot. Hopefully you realize this is not a good guess, but will give you an initial feeling for what values or equations you might want to type in. Warning!!! Do not scroll around on the graph or change the window whatsoever.
VII. Using the Graphing Calculator and Pre-Devised Programs to Run the EA100. Instructors Directions: Give the workshop participants an idea when it might be beneficial to use predevised programs to setup and trigger the EA100. Also describe the Audiences such as primary grades who might appreciate this capability. We will use the simple programs which are listed in the appendix and are capable of customizing the Data log section.
C. Linking Graphing Calculators to Transmit Information and Programs Instructor Directions: Refer the workshop participants to the “Light” program listed in the appendix in the workshop manual. I would suggest typing this into your calculator the night before and then transmitting it to each of the participants. This will save time of each person having to type it in.
C. Running the EA100 Using the program “Light” Linking the EA100 to Graphing Calculator Make sure both calculator and EA100 are turned off. Link the two using the data transmission cable. Remember to make sure it snaps. Turn both machines back on. This activity requires the light probe, a light source, such as flashlight, and a way to measure the distance away from the light source to the probe.
VIII. Applying The EA100 to your specific Area of Interest. Now that you are comfortable using the multimeter, datalog, and communication area of the EA100, it is your chance to apply the technology to your area of interest. There are 16 labs in library of labs that use the various auto-sensing probes as well as are applicable to various different subject areas and levels. Instructor Directions: Have them perform either Choice A or B A. Pick a lab to perform that interests you.
Quick Look Reference Casio* EA100 Setting the Datalog Function Collecting Data: 1. Plug the selected probe into Channel One on the top of the Casio EA100 data analyzer. Turn the EA100 on and press the SHIFT key. Then press the MODE button which will put us into the mode to setup the Data Logger. 2. Your display will show you different time selections in seconds (1sec, 2sec, 5sec, 10sec, 20sec, 30sec, 60sec, .000 sec, 10millisec, 20millisec, 50 millised, 100millisec, 200 millisec, 500 millisec.).
Quick Look Reference Casio EA100 Transferring Data to Calculator Using the Receive Command 1. Connect your EA-100 to your Casio 9850G using your data link cable. Make sure both machines are off and the cable snaps in firmly. 2. Turn calculator and EA100 on and select the run icon. 3. Press shift, vars to select the subcommand PRGM. 4. Press F6 to search for the I/O command. 5. Select the I/O menu by pressing F4. 6. Press F4 to select the Receive command.
Why Do I need a Data Collector? 1. The availability of this field data collection capability makes possible some interesting extended projects. (You can perform a nine-month study of a stream or lake!!) 2. Instead of 24 students waiting to use one or two computers, pH meters, or a spectrophotometer, etc., they can share 12 EA100’s at a fraction of the cost. 3. Students can conduct the experiment, study the graph, and discuss it right away. They know immediately if they need to repeat a trial. 4.
