+RonC Posted September 18, 2020 Share Posted September 18, 2020 I need some help wiring this up in line from the PSU to the scope. It has 3 terminals, the outside pair are + & - but how do I wire it in line and what's connected to the centre terminal?? Thanks Ron Link to comment Share on other sites More sharing options...
Clive Posted September 18, 2020 Share Posted September 18, 2020 You mean it didn't come with any instructions? A voltmeter needs to be connected across the supply, an ammeter has to be in series with either the positive or negative supply line. So I guess one teminal will connect to the supply positive, one terminal to the supply negative, but whether the third pin connects to the mount positive or negative and therefore which pin is common to both the supply and the mount is anyone's guess! If you've got another DMM you could meter it on the ohms range to see which pins are for current detection. +RonC 1 Link to comment Share on other sites More sharing options...
Clive Posted September 18, 2020 Share Posted September 18, 2020 This one look very similar to yours: https://powerwerx.com/panel-mount-dc-amp-volt-meter It has a common positive pin (12V from supply/to the mount). The centre pin is the negative suppy from the mount and the negative pin is to the negative pin of the supply. +RonC 1 Link to comment Share on other sites More sharing options...
+Graham Posted September 18, 2020 Share Posted September 18, 2020 Here you go Ron. +RonC 1 Link to comment Share on other sites More sharing options...
+RonC Posted September 18, 2020 Author Share Posted September 18, 2020 Super, thanks Graham. If you here a bang then I've got it wrong!! Link to comment Share on other sites More sharing options...
+Graham Posted September 18, 2020 Share Posted September 18, 2020 (edited) Don't do an Alistair Ron Ron to edit click on the 3 dots top right hand corner Mind it may not work now I have replied Edited September 18, 2020 by Graham BAZ 1 Link to comment Share on other sites More sharing options...
+RonC Posted September 18, 2020 Author Share Posted September 18, 2020 Or a Tom!! 2 years ago remember the blue flash!! 😄 +Graham and Sheila 2 Link to comment Share on other sites More sharing options...
+Graham Posted September 18, 2020 Share Posted September 18, 2020 Yes you are right it was Tom my eyes are still burning from the memory of it 😅😅😅 Sheila and +RonC 2 Link to comment Share on other sites More sharing options...
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