I agree with @TomWS ! Sometimes it is best to post a problem on the forum first. And a shout out to @nicaDd for the reference picture…
I think Langmuir has very good support. They don’t use the machines as we do so they aren’t as updated on some problems as the Users of the forum. I have learned a lot just reading the posts.
In the setup instructions it notes that the modules should be checked for proper connection.
The forum is the place to be!!
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