The Agilent/Keysight 34405A is a 5.5-digit benchtop digital multimeter delivering dual-display simultaneous readings and 16 measurement functions for precision electronic testing. DC voltage accuracy reaches ± 0.025% of reading + 0.005% of range over one year at 23°C ± 5°C. The instrument provides true-RMS AC voltage and current measurement, 2-wire resistance, frequency, diode test, continuity, temperature (−80°C to 150°C with appropriate probe), and capacitance (1000 pF to 10000 µF) across auto-ranging measurement ranges.
Technical Specifications
Resolution is 120,000 counts across a dual display. Reading speed reaches 15 readings/sec at 5½ digits for DC voltage and current, with function changes in 0.6 sec and range changes in 0.7 sec. Auto-range capability completes in 2.2 sec. Over USB, 4½-digit readings reach 8 readings/sec. AC voltage accuracy (true RMS) is 0.2% + 0.1% of range from 45 Hz to 10 kHz with crest factor up to 3 at full scale. AC current accuracy follows the same specification from 45 Hz to 1 kHz. The instrument operates from 0°C to 55°C for full accuracy at up to 80% RH (non-condensing) and altitudes to 3000 meters.
Dimensions are 103.8 mm × 261.1 mm × 303.2 mm (H×W×D) in benchtop configuration, with weight of 3.75 kg. Power consumption averages less than 11 W with maximum 16 VA draw. The unit accepts 100V/120V/220V/240V ± 10% AC supply at 45 Hz to 66 Hz line frequency. Warm-up to full accuracy requires 30 minutes.
– Key Features
• Dual display for simultaneous independent measurements
• True-RMS AC measurement capability
• Math operations: Null, dBm, dB, MinMax, Limit, Hold
• Auto-ranging across all measurement types
– Typical Applications
Bench troubleshooting, production testing, field service, and lab characterization of electronic circuits and components requiring multi-function measurement capability.
– Compatibility & Integration
USB 2.0 interface enables PC connectivity and remote control via SCPI commands. IVI-COM and LabVIEW drivers support automated test sequences and data logging through Agilent/Keysight Connectivity software.
