Tachometer

Does anyone know which input wire the RPM output from the ULP 350iS should be connected to on the Dynon Skyview.  There are 4 choices for the input.  2 of the wires are standard voltage and 2 are low voltage.  I currently have it connected to the standard voltage and set at 2 impulses per revolution in the Dynon setup.  The Tach seems to work fine but jumps more than i'd expect.  I already have my panel closed, so before switch it to the low voltage input, I thought I'd see if anyone here knows specifically which Dynon input wire it should be connected to.  

thanks,

bt

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Permalink Reply by Ken Ryan on October 10, 2018 at 3:11pm

I would call Dynon directly. They have excellent customer support.

Permalink Reply by Brian Tollefson on October 10, 2018 at 4:06pm

I guess I should have mentioned that I already called and talked to the technical advisor at both Dynon and ULpower.  Both said the same thing...I'm not familiar with Dynon/ULpower.  Ray recommended that I ask the ULpower forum to see if someone had figured it out.  

Permalink Reply by Ken Ryan on October 10, 2018 at 4:16pm

Wow, that's shocking to hear that five (or more years) after UL was introduced to the US experimental market, they still don't know how to make it work with Dynon.

Permalink Reply by Tom Sullivan on October 10, 2018 at 10:47pm
Howdy Brian. I believe I connected wire 24 which is the left engine (omit right engine wire)and is low voltage. At least that is what I could glean out of Dynon's 528 page manual. Seems to give me a reasonable RPM readout. Tom
Permalink Reply by Tom Sullivan on October 10, 2018 at 10:57pm
Correction: I connected the blue/white wire from the engine to the blue no. 34 wire on Dynon. Tom
Permalink Reply by Larry Ward on October 11, 2018 at 8:56am

Brian

I connected mine to Pin 34(Blue Wire) Low Volt RPM left connection and it works fine.  I also have 2 impulses per revolution setup.

Permalink Reply by Brian Tollefson on October 11, 2018 at 1:19pm

Thanks for the replies.  Sounds like the consensus is to connect it to the low voltage input.  I'll switch it over and see if it fixes the jumpy needle.

thx,

bt

Permalink Reply by John Bell on December 31, 2021 at 2:21pm

Did you ever get this solved Brian?

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