Data monitoring and applications.
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A to D converter was purchased as part of a kit:
http://www.dataq.com/products/startkit/di158.htm
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![](interior_small.jpg) |
![](exterior_small.jpg) |
Data monitor chassis interior. A/D converter in lower left corner. Voltage divider can be built on barrier strip to allow higher voltage samples. A/D converter connects to a computer via USB cable. |
Exterior of chassis. If samples are high voltage, these are present on bannana leads. Caution is always required to prevent arcing or shock hazards. |
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Waveforms of a normal generator start. Gen start signal is followed shortly by a good generator ACÂ waveform.
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Waveform of a generator failure. Weak generator waveform shows generator cranking followed by failure.
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