Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Plural ranges – scales or registration rates
Patent
1999-06-16
2000-10-17
Karlsen, Ernest
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Plural ranges, scales or registration rates
345 83, 345150, G01R 1508, G09G 502
Patent
active
061337226
ABSTRACT:
A variable color digital measuring system performs sequential tests and exhibits each measured value in a color in accordance with the previous measurement errors. An error memory is provided for storing a value indicating whether there was a measurement error. A color control illuminates the present measured value in a first color when the contents of the error memory indicate that there was no previous measurement error, and in a second color when the contents of the error memory indicate that there was a previous measurement error.
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Karlsen Ernest
Texas Digital Systems, Inc.
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