Connecting volt gauge to power supply in series to measure series

Thread Starter


Joined Nov 5, 2011
As shown in the picture, I will have 4 power supplies in series, three 48v, one 12v.

Can I power the volt gauge from the 12 volt power supply, and also measure the series voltage of all the power supplies?

Or should I use a separate power supply or an isolated DC-DC converter powered from the 12-volt power supply?

Thankyou for any help you can offer.

Below is a picture of the power supplies in series connected to the volt gauge.

Below are the connections to the volt meter/gauge.