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Dynon OAT Probe

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Sat Jul 07, 2007 1:38 pm Post subject: Dynon OAT Probe

My Dynon 180 always shows -45F or -46F degrees AOT. I ordered another OAT

probe but it reads the same. This is the OAT probe with the black band that

connects into the remote compass box. Can't find anything wrong with the

wiring and the probe is configured as choice 2 in the setup menu just like

Dynon says.

Anyone else been down this road?

Albert Gardner

Yuma, AZ

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Tim Olson

Joined: 25 Jan 2007
Posts: 2879

Posted: Sun Jul 08, 2007 4:14 am Post subject: Dynon OAT Probe

Quick question, Albert.... When you go outside in a T-Shirt, is it

REALLLY cold?  If so, watch the local news and see if it's

really actually -45F. This should tell you if it's reading accurately.





(Sorry, just couldn't resist.  Wish I had something helpful to offer)



Tim Olson - RV-10 N104CD - Flying

do not archive

Albert Gardner wrote:

 	  Quote: 	
		   

 

 My Dynon 180 always shows -45F or -46F degrees AOT. I ordered another OAT

 probe but it reads the same. This is the OAT probe with the black band that

 connects into the remote compass box. Can't find anything wrong with the

 wiring and the probe is configured as choice 2 in the setup menu just like

 Dynon says.

 Anyone else been down this road?

 Albert Gardner

 Yuma, AZ

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ddddsp1(at)juno.com
Guest

Posted: Sun Jul 08, 2007 6:25 am Post subject: Dynon OAT Probe

Albert, 

I believe you may have it wired wrong.   Look at how you wired the resistor in line............Read the wiring instructions closely........call Eric at Dynon...........he will walk you through it. 

DEAN 



_____________________________________________________________

Click here to find singles for dating, romance and fun

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Albert Gardner

Joined: 10 Jan 2006
Posts: 455
Location: Yuma, AZ

Posted: Mon Jul 09, 2007 1:29 pm Post subject: Dynon OAT Probe

OK, I found the answer to my question. Eric at Dynon told me the problem was

that the D-180 unit comes from the factory with General Purpose Input #1 set

up as an OAT input and needs to be changed to some other function or set to

Unused. This also applies to any other GP input as only one OAT can be

connected at a time. Otherwise, the probe connected to the compass module

conflicts with the GP input and shows -46F.



Also, the 3 wire probe (identified with a black bank) can be used as a 2

wire probe connected to a GP input but needs to be wired as follows: Yellow

wire is sig.; blue wire is ground; and red wire is unused.



Thanks, Eric.

Albert Gardner

Yuma, AZ



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Kellym

Joined: 10 Jan 2006
Posts: 1705
Location: Sun Lakes AZ

Posted: Mon Jul 09, 2007 6:19 pm Post subject: Dynon OAT Probe

Well you at least got some E-cooling to relieve the current AZ heat 

wave.  



Albert Gardner wrote:

[quote] 



 OK, I found the answer to my question. Eric at Dynon told me the problem was

 that the D-180 unit comes from the factory with General Purpose Input #1 set

 up as an OAT input and needs to be changed to some other function or set to

 Unused. This also applies to any other GP input as only one OAT can be

 connected at a time. Otherwise, the probe connected to the compass module

 conflicts with the GP input and shows -46F.



 Also, the 3 wire probe (identified with a black bank) can be used as a 2

 wire probe connected to a GP input but needs to be wired as follows: Yellow

 wire is sig.; blue wire is ground; and red wire is unused.



 Thanks, Eric.

 Albert Gardner

 Yuma, AZ



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