Bill,
A true RMS meter shouldn't be necessary with a gennie in most cases, as
the gennie is a rotating source, so the waveform is naturally true sine,
or close. The true-RMS meter is more important with mod-square
inverters, as cheap DMMs estimate RMS voltage as a proportion to peak
voltage,
Wrenches,
I have a customer that is reading voltage with a non-RMS
meter in the following scenario: 4000 watt Onan RV generator (older) at
~5500 foot elevation...its output is connected to the "AC in leg 1" of
an OB VFX3648 using (customer installed, I came on this job
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