I have a digital panel meter that I want to wire into a 30VDC power supply that can produce 2.5 amps. The meter is rated at 5 amps and has a 5VDC + - terminal which supplies the MP and lights the display and it also has a terminal block marked IN + - of which I am not sure is wired in series or whether a shunt should be across these terminals and I doubt that it would be wired across the supply. Has anyone had experience with these meters and point me in the right direction