British RM5/1 ratemeter retrofitting problems

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Rowan Johnson

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Jul 2, 2022
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Hi all, I've recently got a Nuclear Industries RM5/1 ratemeter that is showing some problems with a connection swap from a PET100 to a BNC connector.

If anyone can help with any info on why there is no voltage across the connector when there's around 350v flowing through the actual unit, that would be amazing thanks. It performs a battery test completely fine and still works with the adjustable voltage. The STS5 Geiger Müller tube also works completely fine so there's no issues with that.


Many thanks, rowan.
 
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