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Moving rev counter to zero?


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Whilst bored with this virus rubbish I’m looking at jobs to do. One slight annoyance is my rev counter not returning to zero.

any ideas, I don’t have a clue how it works I’m guessing it picks up an electrical signal from the crankshaft somehow. Pretty sure it works above 1000 rpm with the engine running.

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Edited by Dave W
Fixed
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19 minutes ago, Dave W said:

Thanks, just thought I’d try turning the ignition on and it dropped back to zero again.

Or strap a large capacitor across the DC supply and hope that its charge will be enough to power the meter until the engine stops.

Feed the DC to the meter via a relay with a timer delay circuit so the relay drops out xx seconds after the ignition is turned off.

 

Easier to live with it or remember to flip the switch on and off once the engine has stopped.

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We have a stop button so we could wait a couple of seconds after the engine stops, before turning off the ignition. On the other hand, life is too short to spend 2 seconds listening to the alarm whereas having the gauge showing 800rpm or whatever with the engine off, doesn’t seem to distressing!

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