I think it simply doesn't count running hours until it see RPM's on the
Tach. No RPM's (probably under a threshold of 100 RPM or so), no hours
counted.

"Dave" wrote in message
...
On Thu, 16 Jun 2005 01:20:22 -0400, Larry W4CSC said:

There IS an easy solution that is very accurate:
http://www.tinytach.com/tinytach/diesel.php
Even comes with a runtime hour meter that only times when the engine is
actually running...not when the switch is on.

Interesting item, Larry. Any idea how the transducer detects that an
injection has occurred?

--
Ken Heaton & Anne Tobin
Cape Breton Island, Canada
kenheaton AT ess wye dee DOT eastlink DOT ca