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Tester and method for checking meter encoders in automatic meter reading systems

Image Number 12 for United States Patent #4276644.

Apparatus for use in an automatic meter reading system for displaying meter encoder generated dial readings and detecting errors in response to information contained in the encoder meter dial readings. Errors are detected through interdial checking by comparing the angular positions of adjacent dial drive gears. When the angular positions of adjacent gears are not in the proper mechanical, or angular relationship an error is recorded.

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