Fluke 8050A voltage input mod

[Raxios]

Hello there.

I already own a Fluke 8050A bench multimeter, and I'm very pleased with it. So that's why I decided to acquire myself another one. I found a good deal on one, and thus ordered it. Afterwards though, I've discovered that it's the 110V model, and since I live den Denmark, we have 230V mains. I then decided to crack that sucker open, and found on the input (A white wire (assuming live), a green/yellow (mains ground) and a black wire (assuming neutral). The white wire is wired to a hole with "110V" marked on it, and next to it is a unpopulated hole marked "230V" which my current meter is wired to.

I suspected that it would be that easy, since it draws so little power, so I didn't suspect that Fluke would go through the hassle to make two different transformers for the two regions.

The question is, is there anything else that I should be aware of, or should I just solder the white wire to the 230V hole and be good to go? I don't want to brick it with a stupid mistake.

Thanks in advance!

[mianchen]

I'd try measuring the resistance of the "230" and "110" winding, if the former is about 2x of the latter, I'll assume it's "ok" to just do what you intend to do. To be extra "safe" you could de solder the secondary first, measure it after the mod.

[Raxios]

I'd try measuring the resistance of the "230" and "110" winding, if the former is about 2x of the latter, I'll assume it's "ok" to just do what you intend to do. To be extra "safe" you could de solder the secondary first, measure it after the mod.

The resistance from 120V to ground is indeed about half of the 230V to ground.