Hi,
I have recently got a new/used power supply for my machine. It looks like a nice improvement for my setup, however it's positive and negative contacts are not marked.
Model is ascom fr-48 1200W. Maybe some of you are using this PSU?
Is there any way I could identify which contact is + and - with a tester?
Or maybe you know at which contact manufacturers are usually placing the fuse?
check the input settings if that's ok for your place, connect it to AC and with a voltmeter you can check the output and will know what's the positive and negative connector.
DON'T touch any part inside while connected to power unless you know how