The Keysight (Agilent) 3400B is a benchtop RMS analog meter engineered for precision AC voltage and current measurement in laboratory and field testing environments. True RMS capability enables accurate readings across complex waveforms, not limited to sine waves. The instrument delivers dependable performance through a calibrated analog display optimized for quick visual assessment of AC parameters across broad measurement ranges.
– Technical Specifications
AC Voltage Measurement
• Ranges: 10 mV to 300 V
• Accuracy: ±1% full scale (300 V range, 45 Hz to 100 kHz); ±2% full scale (100 V and 30 V ranges); ±3% full scale (10 V and 3 V ranges); ±4% full scale (1 V and 300 mV ranges); ±5% full scale (100 mV range) — all at 45 Hz to 100 kHz
• Frequency response: Flat 10 Hz to 500 kHz; specified accuracy 45 Hz to 100 kHz
• Input impedance: Approximately 1 MΩ in parallel with 15 pF
AC Current Measurement
• Ranges: 1 mA to 3 A full scale
• Accuracy: ±2% full scale (3 A and 1 A ranges, 45 Hz to 10 kHz); ±3% full scale (300 mA and 100 mA ranges); ±4% full scale (30 mA and 10 mA ranges) — all at 45 Hz to 10 kHz
• Input impedance: Low impedance shunts, varies by range
Display & Power
• Analog meter movement with clear, calibrated scale and large readability
• Operates from standard AC mains
– Key Features
• True RMS measurement for non-sinusoidal AC signals
• Wide voltage measurement span from 10 mV to 300 V
• Current measurement capability up to 3 A
• High input impedance for voltage measurements minimizes circuit loading
– Typical Applications
• Electronics testing and troubleshooting
• AC circuit characterization
• General-purpose laboratory measurements
– Compatibility & Integration
Input terminals accommodate AC voltage and current measurement connections, including current shunt inputs.
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