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Reply to "Jones Counter Redesign"

Mark:
Your example is rather farcical since the normal correction would be to roll the wheel back to zero disconnecting the Totalizer first if the reading needs to be preserved.
Your confusion with the procedure described in my last post is because you were tempted to cut it short because of your farcical example.
To begin his correction the measurer must first choose a rim reading. He can use any, but suppose that as in your example he chooses 0.1. He sets the wheel on 0.1, turns the bicycle 180 degrees about this point, goes into decrement mode, and heads for A. As he passes A the Totalizer reading decrements by one and the rim reading as you correctly state is 0.2. However he cannot stop at this point but must continue 0.9 rev to his chosen rim reading of 0.1. Again he turns the bike, goes into increment mode, and returns to A. As he passes A the meter reading increments by one back to what it was when he first passed A, and the rim reading is again 0.0.
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