Wiring help for Smarty EGT probe connector

[bigceltic]

The wires connecting the EGT probe wire to the little white connector came out and I need to re-attach, re-solder. Does anyone know the correct order of wires - I believe there are 4 and 4 pins.

Here is a pic of where the white connector goes (arrow #2), and tonight I will post a pic of the connector and wires as well.

Thanks,
George

 

[bigceltic]

Here is a close up. I can figure where the blue wire goes, since it is missing the connector, but what about the rest - what is the order? Thanks.

 

[bigceltic]

Follow up question. The probe has two wires, red and yellow. which is positive and which is negative? Does it matter?

 

[Ozymandias]

On the probe it usually doesn't matter as it is reading resistance.

 

[Timd32]

My initial thought this sounds like a Type K Thermocouple, red being (-) negative.

No clue if it matters on a Smarty.., but for my industry and the controllers we use it matters, red is typical negative (-) for our thermocouple wiring. Mostly since we read ambient to +120deg C with the same probe. The reading will go negative below 0 C, 32F, that's just the way they have the code written for the unit, it could easily just stop at 0 if the programmer wanted it too, for an EGT I can see that kind of range is useless so maybe they ignore the sign with their controller.

Borrowed from a page.....

 

[bigceltic]

Thanks. I have looked at pictures on line and on the connector I have, the "+" is on the right hand side (wire facing away from me), and pics show both red on right as well as on the left! So I don't know if the design changed or what. I will just have to try it out, or hope someone who has one can take a peek at it for me.

 

[bigceltic]

Bueller? Bueller? Specifically on my orig question. Can someone please take a peek at their Smarty (touch or MM3) and see if you can get the wire order to the connector from the EGT probe? I did say please.... ;-)

 

[Timd32]

Not sure if you can tag folks but you can also try to PM @BrianAtSmarty maybe he can help you out.

 

[bigceltic]

Already chatted (via PM) with Brian. I think I may end up just trying all the combinations. There are only a finite number, after all! ;-)

 

[Timd32]

That sucks, it's a real simple request.

 

[AH64ID]

Have you put a support ticket in on their website?

it's my understanding Brian no longer works at Smarty Resource.

 

[bigceltic]

Have you put a support ticket in on their website?

it's my understanding Brian no longer works at Smarty Resource.

I have, and Nick has been super helpful, but was not able to provide the answer.

 

[AH64ID]

I have, and Nick has been super helpful, but was not able to provide the answer.

Gotcha.. Figured he could go look at one.

 

[Tuesdak]

Will they let you send it in for repair? Is there a colored sticker still on the EGT 2 screw probe connector device? I recall the sticker matched the wire color for the probe.