Dashboard with voltage dial with min 200V and max 250v how to do it

I try to make a dashboard who can display the current voltage measurement, but I can’t, how I can a min and max display value.

Screenshot 2023-03-05 at 16.02.50

Any help welcome, thanks

Try something like this - change the numbers to suit your voltages:

Screenshot 2023-03-05 15:28:25

Screenshot 2023-03-05 15:29:20

The scale is centre zero, and ±20 V, but it has an offset of 240 V, so it reads from (240 - 20) to (240 + 20).
My nominal voltage remains 240 V, so “centre” is this. Your clue to making it work is “Static offset. Subtracted from value before computing needle position”. So (Incoming voltage - offset) = value to be shown by the needle position.

You might want 230 V or 220 V as your offset.

perfect great thanks