In case of difficulty
If you have this problem:
Try this:
Difficulty collecting data | Check for a poor |
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| in firmly on both ends of the cable. | ||
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| Check for low batteries (see page 40). | ||
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The CBR 2™ motion detector | If you set down the CBR 2™ motion detector with the ¤ button face down, | |||
begins collecting data by itself | the ¤ button may depress and activate sampling. Press ¤ again to | |||
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| stop sampling. | ||
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| Before storing the CBR 2™ motion detector, properly exit the EasyData App (using | ||
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| Quit) or any other CBR 2™ motion detector or CBL 2™ system App. | ||
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The CBR 2™ motion detector | Press ¤ to stop sampling. Repeat sample. If problem continues, remove | |||
doesn’t quit collecting data | one battery and put it back in. Note: Any data stored in the CBR 2™ motion | |||
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| detector will be lost. | ||
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Communication Error | Attach the CBR 2™ motion detector to the calculator with the | |||
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| A USB cable | ||
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| Check for a poor | ||
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| in firmly on both ends of the cable. | ||
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| If you do not want to (or cannot) attach the CBR ™ motion detector to the | ||
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| calculator, quit the EasyData App. | ||
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Insufficient memory | You must have sufficient memory for the EasyData App and the data lists. | |||
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| EasyData needs 5000 bytes to run effectively. You need to delete items from the | ||
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| calculator memory. | ||
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| On the TI calculator, press yL2:Mem Mgmt./Del. Choose items to delete | ||
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| and press DEL to delete the selected items. | ||
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Calculator doesn’t match activity | This guide applies to all the TI calculators that can load the EasyData App. You | |||
instructions | may find that some of the menu names, screens, or keys in this guide do not | |||
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| match exactly those on your calculator. If using Ranger, or other programs, choose | ||
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| the closest match. For example, if the instructions say “Choose DISTANCE MATCH,” | ||
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| on the | ||
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Data doesn’t look right: | Repeat the sample, ensuring that the CBR 2™ motion detector is aimed directly at | |||
0 points not on the curve | the object. | |||
Read pages | ||||
0 | jagged plots | |||
Check that the clear zone does not contain students, tables, or other objects. | ||||
0 | flat plots | |||
Check the position of the Sensitivity switch. | ||||
0 | broken plot | |||
When using two CBR 2™ units at the same time in the same room, one group | ||||
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| should complete a sample before the next group begins their sample. | ||
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| Check for a poor | ||
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| in firmly on both ends of the cable. | ||
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| Check for low batteries (see page 40). | ||
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Lost | You can use the I/O | |||
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| CBR 2™ cable allows | ||
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| so you may wish to order a replacement cable.) | ||
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Frequently low batteries | Before storing the CBR 2™ motion detector, properly exit the EasyData App (using | |||
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| Quit) or any other CBR 2™ motion detector or CBL 2™ program, and disconnect | ||
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| the CBR 2™ motion detector from the calculator. | ||
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© 1997, 2004, 2006 TEXAS INSTRUMENTS INCORPORATED | GETTING STARTED WITH THE CBR 2™ SONIC MOTION DETECTOR 41 |