Solartron 7081 - Reference Circuit

[Ismsanmar]

Just adding a little more information to the connector debate, I have recently bought a couple of original cables on eBay, which are optional accessories, not the one that is suplied with the multimeter. Specifically, the 3 Terminal Input Lead 3193 and the 5 Terminal Input Lead 3183.

And yes, the insulator between pins is PTFE, as in the socket, which makes them a special order by Solartron and truly a unobtanium connector. Here I add a couple of photos of the original next to the copy I bought at Aliexpress. You can see that the pins are a little bit shorter in the Aliexpres connector.

[ap]

Question: Is the cable shield of these connected to the connector case?

[Ismsanmar]

Question: Is the cable shield of these connected to the connector case?

Question: Are you going to use the information to check if you are building correctly the cables that you sell on your shop? 

No, it's ok the question. Of course that it is not connected. First, the connector case is directly connected to ground earth. Second, on the user manual it is clearly indicated that the shield is connected to the guard pin.

I'm not going to take it apart beyond unscrewing the connector, so I cannot check if the cable has a shied on the main harness, or on every individual cable, or on both. And it's shrinktubed till the solder cups. One thing that I've noticed is that the pins are "oxidized" not only where there was contact with the socket side, but on the entire pin, to the solder cup, indicating that the brass has difused on the gold plating. That means another difference with the currently availabe lineup of connectors: they are direct gold plated over the brass, without nickel barrier.

Now the real question: the connector that you use on the cable that you sell it's the custom original one, or the one that Fischer offers to the public with PEEK and brass pin with gold over nickel plating?

Ps.: There is an errata on your shop page. There are two lines that say: "The cable is available as kit (-S-K or -B-K) and as finished cable (-S or -K)." That last "-K" should be "-B".