The Fluke 8922A True RMS AC Voltmeter is a precision instrument engineered for accurate AC voltage measurement across demanding industrial, laboratory, and service environments. It delivers true RMS readings on sinusoidal and non-sinusoidal waveforms, including AC + DC components, with a four-digit digital display and analog meter for peak and null adjustments. The instrument combines high input impedance with switchable low-pass filtering and autoranging capability, making it suitable for calibration labs, R&D, and field service operations requiring reliable, repeatable AC voltage data.
Technical Specifications
Measurement Functions & Ranges
• AC true RMS and AC + DC true RMS modes
• Seven voltage ranges: 2 mV, 20 mV, 200 mV, 2 V, 20 V, 200 V, 700 V
• Measurement units: Volts or dB
• Resolution: 0.05% of range (3½ digits)
• Crest Factor: 7 at full-scale, proportionally increasing as percent of scale decreases
Frequency Response
• 2 Hz to 11 MHz (2 mV to 20 V ranges)
• 2 Hz to 1 MHz (200 V to 700 V ranges)
• Accepts sine, complex, pulse, and random waveforms
Accuracy (Volts Display Mode)
• Within range: ±0.35 dB
• Over all ranges: ±2 dB
• ±10 Digits or 0.5 dB above 2 mV
• ±100 Digits or 5 dB below 2 mV
• Specifications at 23°C ±5°C, ≤80% RH, 90-day calibration cycle
Electrical Characteristics
• Input impedance: 10 MΩ shunted by 80 dB @ 50/60 Hz (100 Ω in either lead)
• Maximum common-mode voltage: 400 mV rms or 600 mV peak, diode-clamped
Display and Controls
• 4-digit digital display with analog meter
• Autoranging with HOLD defeat and STEP-UP manual up-ranging
• Autoranging rates: up at 2000 counts, down at 180 counts
Rear Panel Output
• Linear analog output: 2 V dc = 2000 display counts, ±1.0% of reading
– Key Features
• True RMS measurement of complex waveforms
• High input impedance with minimal loading effects
• Dual display format for flexible measurement analysis
• Switchable low-pass filtering for noise immunity
• Wide frequency span from 2 Hz to 11 MHz
– Typical Applications
• AC voltage calibration and standards work
• Non-sinusoidal waveform analysis
• Research and development testing
• Field service measurements on AC circuits
– Compatibility & Integration
Analog output enables integration with data acquisition systems and external recording equipment.
