OAT and D10A compass connection

[KRichcreek]

I am in the process of closing out the wings on my slow build RV-8.
Wiring instructions for the OAT probe state to connect "the blue wire/shield combination to the same ground that feeds the EDC-10 through pin 1."
With a D sub connector from the remote mag lead already in the pin 1 location what exactly is the best way to splice all three of these wires together?  D sub pins are already on the OAT wiring harness.
Should the ground be done locally or at the panel?
Thanks.

 

[dynonsupport]

Assuming this is an EDC-D10A - if you look at one of our newer installation guides at docs.dynonavionics.com, you'll see that you can actually use pin 8 on the EDC connector for the OAT ground plus shield so you don't have to splice into the pin 1 wire.

 

[KRichcreek]

Yes, it is the EDC 10A remote compass.  I finally found the reference in the FlightDEK D180 installation manual.  No reference was with the installation instructions for the remote compass or OAT probe.
Mike H replied to my e-mail yesterday and said pins 1 and 8 "should be connected inside the compass".  This led me to believe that I "should" take the compass apart and install a jumper wire between pins 1 and 8.  That is not the case.  Performed the continuity test between both pins and verified they are connected.  Hopefully no damage was done to the unit when I disassembled it.  Thanks.
:-/

 

[dynonsupport]

Sorry for the miscommunication. If you find anything amiss with the compass performance, we'll get you straightened out.

 

[N357CJ]

I tried to install the EDC and the OAT to my one year old installed and flying D10A. The EDC is not being detected verified by the headphone test in the install manual. I have verified all wire connections at all pin locations. What am I missing as i thought this was a plug and play item.
Joe.kr2s

 

[dynonsupport]

The EDC is "plug and play". If it's wired up and the EFIS can see it, it uses it right away.

First thing to check is wiring. If that isn't it, we'll need to look at the unit, The EDC's are pretty basic and are tested here before they leave, so we don't find a lot wrong with them. There is also a small chance that the D10A has an issue with the chip it uses to communicate with the EDC. Depending on what works better for you, we can re-test the EDC, or you can send us the D10A at the same time so we can test them as a pair.

 

[jimbabwe]

Just my two cents:

The manual says that the EFIS-D10A has no internal magnetic sensors.  The manual also says that, to check if the EDC-D10A remote magnetometer is properly communicating with the EFIS-D10A, hold a headset in front of the EFIS-D10A.  If the heading changes significantly, the EFIS-D10A is not communicating properly with the EDC-D10A.

My question is this:  If the EFIS-D10A has no internal magnetic sensors, how would holding a headset in front of it cause a change in the heading?

By the way, I HELD a headset in front of the EFIS-D10A and the heading DID change.

 

[dynonsupport]

Can you please tell us where you saw the statement that the D10A has no internal mag sensors (install manual, user manual, page #)? It does have them and has always had them, so if it says that somewhere it's an error.

 

[jimbabwe]

EFIS-D10A Installation Guide, Page 7-4, in the explanation for the alert message "REMOTE COMPASS NOT DETECTED"

I don't get this message when I go the magnetic compass calibration page on the D10A but I do get some heading change when I hold a headset near the D10A.

Do I have to check all the pinouts (I didn't build the plane nor install the D10A) or is there a reasonable way to determine that I have a correct setup and connection and working EDC-D10A?

Thanks!

Jim

 

[dynonsupport]

You will only get "remote compass not detected" after the system has seen the EDC at least once. So that means it has never seen it in your case.

There's no way to verify wiring without actually tracing out each wire from the back of the D10A to the EDC, and verifying which pin it goes to on each end.

 

[jimbabwe]

Looks like the builder, from whom I bought the plane, cut and abandoned under the floor, the wires which appeared to be the ones which were hooked to the old magnetometer.

I ran new wires and VOILA! It WORKS! ;D