Help. Anyone have VM1000 EGT probes?

[Rich]

One of my VM1000 EGT probes has failed. I wondered if anyone who has switched to other systems has retained any I could buy. They have this odd connector that doesn’t seem to come with any I can find.

[astaib]

Hi Rich,

Sorry, I just sold mine second hand.

Arnaud.

[krellis]

Have you reached out to JPI to see if they can still support the Vision system?

Other than the connector, is the probe proprietary? In other words, is it a standard Type K EGT probe with a unique connector?

You might also want to go onto the Vansairforce.net forum and ask. I frequently see builders getting rid of their VM1000 system and converting to something more modern and supportable - so they may well have probes, etc. laying around. If the part numbers are the same, being used previously on an experimental should not matter.

[Rich]

I'll be checking with JPI today. But the last time I replaced one that had been sourced from JPI it had to be tweaked in some manner to fit. It's just a type K but getting the connector attached is not so obvious.

[Rich]

I'm thinking the actual connectors are not VM1000, but what Diamond chose to use. I see a number of connector kits like this available but not necessarily this exact model. Any insights?

[Steve]

I'll be checking with JPI today. But the last time I replaced one that had been sourced from JPI it had to be tweaked in some manner to fit. It's just a type K but getting the connector attached is not so obvious.

Rich: I have seen VM-1000 EGT sensors on eBay:

https://www.ebay.com/itm/226663291263?_ ... R9DKjozGZg

They are the same as our sensor, but as you mentioned, have different connectors. I bought one a while ago to have as a spare, it has a different connector. I vaguely recall that thermocouple connectors and wires are type specific - using the wrong type will result in inaccurate temperature readings. I suppose that as long as you can salvage the presently used connector and crimp on some new pins (assuming they are available) you should be successful.

I think about this issue, as my EGT sensors are original, which means they are 24 years old!

[Rich]

It wouldn't be the worst thing to use a different connector pair for this one than is current. It doesn't have to match the others, though that would inhibit somewhat the switching of probes for hypothetical future troubleshooting.

[Steve]

I wonder if Diamond has any of the old-style connectors in the parts bin? Might be worth a phone call...

[Steve]

Actually, I'm pretty sure this is what you need:

https://www.mouser.com/ProductDetail/TE ... gKY3_D_BwE
Plug half attached to thermocouple

https://www.mouser.com/ProductDetail/TE ... 5W0w%3D%3D
Male pin

https://www.mouser.com/ProductDetail/TE ... QyeA%3D%3D
Female pin

[Rich]

Thanks, Steve. This looks like the right one, but I need the other half. The half shown is on the VM1000 side. Trying to find that other half.