The Advantest R6441A is a 4.5-digit digital multimeter engineered for precision measurement across DC and AC voltage, and DC current applications in manufacturing, R&D, and quality control environments. The instrument features dual-channel input capability with dual display operation, integrating-type measurement circuitry, and selectable auto or manual range switching. A 7-segment electron-ray indicator tube provides clear readings at sampling rates up to 80 samples/second. The R6441A forms the baseline of the R6441 series, with enhanced variants offering expanded AC measurement (R6441B) and specialized current measurement capabilities (R6441C).
– Technical Specifications
DC voltage measurement spans 20 mV to 1000 V with resolution down to 1 µV on the 20 mV range and accuracy from ±0.04% ±5 digits (20–200 mV) to ±0.07% ±10 digits (1000 V). Input impedance reaches 1 GΩ or more across 20 mV–200 V ranges. AC voltage measurement covers 200 mV to 700 V at 10 µV to 100 mV resolution with frequency response from 20 Hz to 20 kHz (±0.2% ±30d at 45 Hz to 20 kHz). DC current ranges span 20 mA to 10 A with 1 µA to 1 mA resolution. Maximum display readings reach 199999 at 2.5 samples/second or 1999 at 80 samples/second. Input method is floating type; maximum allowable DC voltage is 1100 V continuous. AC voltage measurement handles up to 800 Vrms with 1100 V peak, includes 300 Hz to 100 kHz filter, and delivers response time of approximately 4 seconds.
– Key Features
• Dual-channel input with dual display for flexible measurement workflows
• Integrating measurement method for noise rejection: ~120 dB normal mode, ~60 dB common mode (50/60 Hz)
• Optional battery operation for field deployment (0–40°C operating range with battery)
• Memory function preserves panel settings between sessions
• Compact form factor: 212 (W) × 88 (H) × 310 (D) mm, 2.2 kg maximum
• Power consumption ≤15 VA; operates on 90–250 V AC mains
– Typical Applications
Manufacturing test, quality assurance verification, laboratory research and development, field service and troubleshooting.
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