Hi Pix
Just for interest read this post from start to finish.
Mean Well Power Supply
Where James is just about to write off a MeanWell power supply. Changing some measurement techniques changed his mind and now he loves it.
Take note towards the end where I post some interesting screen shots highlighting the difference between having the mains earth connected and isolated.
You will see the point I made above. The difference is the supply seemingly being out of spec to being well inside published figures.
Cheers Bob
This topic has wandered off a bit. If you are still interested open another one.