PASCO SpeedCheckR 7500 Скачать руководство пользователя страница 5

®

Model No. SE-7576

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IMPORTANT PRECAUTIONS

WARNING!  

To reduce the risk of injury to persons, or injury from laser light, read 
the following important precautions and information before operating 
the SpeedCheckR 7500.

1.  It is the responsibility of the owner to ensure that all users of the 

SpeedCheckR 7500 are adequately informed of all warnings and 
precautions.

2.  Use the SpeedCheckR 7500 only as described.

3.  Do not use the SpeedCheckR as a toy or for other purposes than 

what it is designed for.

4.  There are no user-serviceable items on the SpeedCheckR 7500.  

Contact Pasco for repair or service.

A Few Words About Laser Safety

Research studies, along with an understanding of the hazards of 
sunlight and conventional man-made light sources, have permitted 
scientists to establish safe exposure limits for nearly all types of laser 
radiation. These limits are generally referred to as Maximum 
Permissible Exposures (MPE's). In many cases it is unnecessary to 
make use of MPE's directly. The experience gained in millions of 
hours of laser use in the laboratory and industry has permitted the 
development of a system of laser hazard categories or classifications.  
Manufacturers of lasers and laser products are required to certify that 
the laser is designated as one of four general classes, or risk categories, 
and label it accordingly. This allows the use of standardized safety 
measures to reduce or eliminate accidents depending on the class of 
the laser or laser system being used. The lasers used in the 
SpeedCheckR 7500 are Class 2 lasers with emission levels similar to 
commonly available laser pointers found throughout the country.  

Содержание SpeedCheckR 7500

Страница 1: ...Instruction Manual Manual No 012 08900 SpeedCheckR Model No SE 7576 ...

Страница 2: ...troduction 4 Important Precautions 5 Laser Safety 5 Equipment Setup General 6 Speed of a Runner 8 Leg Speed Soccer 9 Cart Velocity 9 Centripetal Force 11 Speed of a Pendulum 12 Appendix A Technical Support 13 Appendix B Copyright and Warranty Information 13 ...

Страница 3: ...echnical Support when no replacement part number is provided Included Equipment Replacement Model Number 1 Laser Unit 2 Receiver Unit 3 Rod Stand Mounting Brackets 2 4 Right angle Bracket Additional Equipment Recommended 1 Rod Stand large ME 9355 2 SpeedCheckR Stand SE 7577 2 1 3 4 ...

Страница 4: ...rge LCD display Uses one 9V battery not included Setup requires only that the two lasers from the Laser Unit are aligned with the optical detectors on the Receiver Unit When the object passes between the Laser Unit and Receiver the lasers are blocked and the speed of the object is quickly calculated and displayed on the large LCD display on the Receiver The speed is simply calculated as the fixed ...

Страница 5: ...man made light sources have permitted scientists to establish safe exposure limits for nearly all types of laser radiation These limits are generally referred to as Maximum Permissible Exposures MPE s In many cases it is unnecessary to make use of MPE s directly The experience gained in millions of hours of laser use in the laboratory and industry has permitted the development of a system of laser...

Страница 6: ...Permissible Exposure for momentary exposure of 0 25 second or less Intentional extended viewing however is considered hazardous For this reason precautionary stickers are attached to the unit near the laser light sources Do not for any reason remove these stickers Replacement stickers may be ordered from TechnaSport LLC The SpeedCheckR 7500 complies with 21 CFR 1040 10 and 1040 and other applicabl...

Страница 7: ...may not be at perpendicular to the receiver As the AA batteries fade the laser intensity slowly declines and may not have enough intensity to trip the sensors To the normal eye it looks like the lasers are properly working and that the receiver device is defective Once new batteries are installed the device works fine again 6 Once alignment is correct the Receiver will display a Ready message 7 Th...

Страница 8: ...ounting options for experiments involving centripetal force see below baseball bat speed etc Speed of a Runner To measure the speed of a runner set up the equipment as shown in the following picture 1 Place the Receiver and Laser Unit no more than 2 meters apart 2 The optional Speek CheckR Stand SE 7577 is used but a tall rod stand would also be convenient 3 The delay switch on the Receiver should...

Страница 9: ...ictured 1 Place the Receiver and Laser Unit no more than 2 meters apart 2 The Laser Unit may need to be offset to one side so the plant foot left foot in the photo does not block the lasers 3 The delay switch on the Receiver should be set to Short Cart Velocity As a cart rolls down an inclined plane the SpeedCheckR can measure its speed ...

Страница 10: ...traight through them see photo below 3 Rotate the Receiver to align the lasers with the optical detectors 4 Roll the cart down the track to insure the cart passes straight through the lasers 5 If the entire length of the cart is moving through the lasers use the Long Delay setting If using a small flag mounted to the cart use the Short Delay setting ...

Страница 11: ...tal force on the stopper using the following equation 1 Use the SpeedCheckR Stand SE 7577 to hold the Laser Unit overhead 2 Rotate the lasers such that the string passes straight through them 3 Rotate the Receiver to align the lasers with the optical detectors 4 Swing the stopper around to insure the string passes straight through the lasers 5 The Short Delay setting should be used Fc mv 2 r ...

Страница 12: ... Laser Unit and Receiver on rod stands one on either side of the pendulum 2 Rotate the lasers such that the string passes straight through them 3 Rotate the Receiver to align the lasers with the optical detectors 4 Swing the pendulum to insure the string passes straight through the lasers 5 The Short Delay setting should be used ...

Страница 13: ...anty Information Copyright Notice The PASCO scientific 012 08900A SpeedCheckR Manual is copyrighted and all rights reserved However permission is granted to non profit educational institutions for reproduction of any part of this manual providing the reproductions are used only for their laboratories and are not sold for profit Reproduction under any other circumstances without the written consent...

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