Buly, Yes, there are a few tricks about wiring the IVO electric adjustment motor. First, be sure that you heed the IVO warning about not shortening the supplied wires. The wire length and wire diameter is used to create the correct resistance for the circuit. To install the meter you need to place a resistor in series with one of the wires that go out to the brushes. The meter is then wired across the resistor. The value of the resistor is calculated such that it provides full scale deflection of the meter at about 10 amps. I don't have the parts list right here now but if you want the exact value of the resistor and the part number of the meter I can look them up for you. Just let me know. Jim
Bulent Aliev <atlasyts@bellsouth.net> wrote: Thanks Jim,
Is
there anything about the wiring the switch and ammeter I should know?
Buly
On May 26, 2006, at 8:46 AM, James Maher wrote:
> I have installed a balance type ammeter in the prop circuit as is
> being discussed here.
> In the attached photo of my engine/prop control cluster you can see
> that the prop control is labeled, not the meter. The meter is
> installed vertically and deflects in the same direction as the
> control switch so there is no need to label the meter since it is
> just a visual reference to assure that when you deflect the control
> that something is actually happening.
> This has already saved me lots of time troubleshooting when the
> prop adjustment is not working.
> Jim
>
> Ed Anderson wrote:
> Buley, Just so you have the frame of reference firmly in your mind.
> For
> example, you could either have the amp meter
labeled with the first
> order
> effect - Lower Pitch /Higher Pitch or second order effect Higher
> RPM/Lower RPM. Since it is engine rpm that I would be primarily
> interested
> in, I (if I had a variable pitch prop) might label the meter with
> Higher
> RPM/Lower RPM or perhaps Increase RPM/Decrease RPM rather than lower
> pitch/higher pitch (the latter requires some mental manipulation).
> Just a
> point of view.
>
> Ed
>
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