I just purchased a nice little Sperry DSA-500 multimeter at Home Depot for $49.00. It seems to work just fine. However, it is not a true rms multimeter. Will it still measure voltage accurately?
Depends on what sort of accuracy you require. Any non-TrueRMS meter will test the Average voltage (as in 63.7% of the peak voltage) as opposed to 70.7% (RMS).
By rights, there should be no voltage between these conductors. I could be wrong too. Frank, A T-RMS meter is only of value to those that measure voltages with lots of harmonics on the supply. The average electrician doesn't need to worry , I have one, but I wouldn't recommend every guy runs out and gets one. My Fluke 80 does just as gooder job and why spend good cash when you don't have to?.
