I have the Mean Well PT-45B power supply (data sheet here). It has three channels, which should give 5V, 12V and -12V, as I understand.
Pin 1 and 4 or 5, and pin 6 and 4 or 5 should give 12V and -12V respectably (as of my understanding).
The issue is when I connect the power, and try to measure the DC voltage, I get wrong outputs.
Pin 1 and 4 gives -17V and pin 6 and 4 gives 7V (see pictures). There is a potentiometer to adjust the output somewhat, but If I adjust it away from center to the left or to the right, the readings get really jumpy (see gif).