MULTIMETER AC VS AC+DC TRUE RMS: LABEL THE QUANTITY BEFORE COMPARING READINGS Question and applicable vehicle procedure: Meter model / function / range / reference: Requested quantity / specified limit source: Original DC / AC-only RMS / combined RMS readings and units: Location / load / operating condition / measurement time: Applicable instrument frequency and waveform limits: Calculation and comparable-state assumption: Unresolved evidence / next test: Follow the applicable vehicle and instrument procedure. Illustrative calculations are not acceptance limits.