Hobbs & Tach time not recording

[paul.mcallister]

Hello,

I have a new to me aircraft with D120 / D180 panels. The aircraft has an IO-360 and it doesn't seem to record hobbs & tach times. Is this a setup issue?

Thanks, Paul

 

[Rhino]

Doesn't record, as in store, them, or doesn't display them? Hobbs works off tach, so you won't get Hobbs without tach.

 

[paul.mcallister]

Currently the Tach time is showing 21.8 and the Hobbs is showing 31.0 and the values never change when I fly.

 

[paul.mcallister]

I forgot to add, the engine RPM & oil pressure display correctly

 

[paul.mcallister]

Another update. Currently the Tach time is showing 21.8 and the Hobbs is showing 31.0. I went into the setup menu under Global Settings and reset both of them to zero but when I exit setup mode the values are still displaying 21.8 & 31.0. It might be a fat finger problem on my side but if it is then its not obvious to me.

If anyone has some ideas for next steps I'd appreciate it.

 

[Rhino]

Did you press BACK before exiting the menu? If you did, you need to contact Dynon Support. Your unit may be faulty.

 

[Dynon]

As a old timer here that used to support the D10/D100 series back in the day, hobbs counts when oil pressure is alive (above some threshold), and tach is ratiometric to the RPM. Does the timer/clock work? That's another piece (that would only affect hobbs, I think, technically. So I can't think of any reason that it shouldn't be counting, and I don't think there's any other discrete setup you should have to do for those to work.