Westinghouse voltammeter DC 1-50

[wagoneer]

View attachment 9156I was wondering if any of you could direct me to hook/wire this up Top row screw terminals are
+AV, 30A,15A,3A, 15V 3V, and 150V a small black button allows you to go between amps and volts
Yes I know it's archaic but it just feels nice and I love my meters without digital displays

 

[Optimistic Paranoid]

Looks to me like one wire would go on the +AV and would be hooked to positive, and the second wire would depend on whether you want to measure 30 amps or 15 volts, or whatever.

 

[wagoneer]

How accurate a reading would I get if wired to load on my controller?

 

[speedhighway46]

That meter is definitely pre-WWII. It's the real thing! Nice.

 

[Optimistic Paranoid]

How accurate a reading would I get if wired to load on my controller?

Without knowing what tolerances the resistors, capacitors, and other internal parts originally were (+/- 20%?  +/- 10%?  +/- 5%?) and how well they've held up over the years, that's pretty impossible to say.

Was it me, I'd compare it to a known good meter like a Fluke over a number of different volt and amp readings to come up with some idea how it stacked up.

 

[highdesertranger]

that meter is cool. I have no idea how to hook it up. have you searched for info? highdesertranger

 

[blars]

When properly calibrated and used, I expect less than 1% full scale error. In unknown condition, it could be less accurate than a stopped clock. (The clock is right twice a day.)