Resistor in Dynon Pressure Transducer package

[cbretana]

I just purchased two of the newly available 0-150 psi Dynon pressure transducers, (Dynon item number 105492-002) and they each came with a small resistor. What are these for, and where in the wiring should they be attached?

 

[Rhino]

It's for the D10/D100, not the Skyview. It's mentioned several places in the installation manual, chapter 7.

 

[cbretana]

Thanks! I think I may need to get latest version of the Install manual

 

[jakej]

Thanks! I think I may need to get latest version of the Install manual

Always a good idea

 

[cbretana]

I just checked. I DO have latest revision (AV) of the installation manual, dtd November 2025, and I cannot find any relevant reference to this resistor in Chapter 7. It does however, discuss the new pressure transducers.

I DID find this note in several places, but as it is specifically about removing an existing resistor, I did not think it was relevant...

Note: If you are converting a Dynon D10/D100 product installation to a SkyView installation, you should remove any resistor that is connected to the existing fluid pressure sensor. It is not needed when used with SkyView.​

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Is this what you were referring to?

 

[Rhino]

Generally, yes. The resistors were used for the D10/D100, and apparently the D120/D180 as well. But they aren't used with the Skyview. I assume they still include them for folks that have a D10/D100/D120/D180. That comment appears in several places, because that 0-150 sensor is used for multiple purposes, but they never fully explain it anywhere that I can find. Another instance of vague documentation.