B887 "Sarah" Switch Bounce Test System

Nearly all switches will generate some "bounce" when they are operated (switched). Every time they are operated, they will actually open and close their contacts several times before they settling down to their new position. For normal switches, this can last from as little as a fraction of a millisecond (ms), to as long as several milliseconds. Only very high quality switches generate little or no bounce. This switch bounce is not usually a problem if you are merely turning on something simple like a light, but if you are working with more sensitive things like logic devices, all these extra bounces can create havoc. An example of a problem would be that if every time you pressed a button to increment a counter you actually added several counts to the total. What else do I need to get started? 1. A PC or laptop running a version of Windows that supports a USB connector. Microsoft Office will help you analyse and print your results but you can perform standard tests without it. 2. A product to test. Everything else is included. Features Bullet point Measures switch bounce in ms Bullet point Log results to an Access database Bullet point Print a certificate in your own format, using Word template Bullet point Save part number, serial number and customer details to a database and a certificate Bullet point Display the contact resistance Bullet point Adjustable test current

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