The Advantest R6451A is a 5.5-digit digital multimeter engineered for general-purpose electrical measurement across R&D, production, and field environments. This Japanese-manufactured instrument delivers true RMS AC measurements, frequency analysis, and resistance testing with 180 ppm + 5 digits accuracy on DC voltage and ±0.1% ± 6 digits on the 200 mΩ resistance range. The half-width 19″ 2U form factor accommodates both benchtop and rack-mount deployment.
Technical Specifications
Measurement Capability
• DC Voltage: 0.001 V to 700 V
• AC Voltage: up to 700 V with true RMS processing
• DC Current: up to 10 A
• AC Current: up to 10 A with true RMS processing
• Resistance: 2-wire and low-power modes; 200 Ω maximum (AC)
• Frequency: 20 Hz to 100 kHz (AC voltage), 20 Hz to 5 kHz (AC current)
• Continuity testing and analog bar graph display
Performance Metrics
• Display resolution: 199999 counts (5.5-digit)
• Input impedance: ≥1000 MΩ (DC voltage ranges to 200 mV)
• Sampling rates: 80 SPS (FAST), 10 SPS (MED), 2.5 SPS (SLOW)
• Analog bar graph update rate: 80 times/second
– Key Features
• True RMS measurement for AC voltage and current eliminates errors from non-sinusoidal waveforms
• High-speed analog bar graph enables real-time signal trend observation
• Wide input impedance minimizes loading effects on sensitive circuits
• Selectable sampling rates optimize response time and noise rejection
• DC voltage accuracy of 180 ppm + 5 digits ensures precision in calibration-grade applications
– Typical Applications
• Component characterization and acceptance testing
• Production line verification and troubleshooting
• Field service and maintenance diagnostics
• General electrical bench measurements
– Compatibility & Integration
Standard RS-232C interface; optional GPIB interface available. Universal power input: 90–250 V accommodates global facility requirements.
