The Fluke 8558A is an 8.5-digit multimeter engineered for high-precision metrology, calibration, and research applications. It combines direct digitizing at 5 MS/s with an 18-bit SAR ADC to deliver exceptional resolution and stability across DC voltage, AC voltage, DC current, AC current, and resistance measurements. The instrument stores up to 15 million readings onboard and streams data at rates up to 500,000 readings per second via USB in binary format, making it ideal for automated test environments and high-throughput measurement campaigns.
Technical Specifications
Digitizing & Data Handling
• Digitizing rate: 5 MS/s with up to 20 MHz bandwidth (voltage) and 4 MHz (current)
• 18-bit SAR ADC
• Onboard memory: 15 million readings
• Reading aperture: 0 ns to 10 s (200 ns resolution)
• Data transfer: up to 500,000 readings/s (binary USB), 200,000 readings/s (Ethernet/GPIB), 100,000 readings/s (4.5 digits, GPIB/USBTMC/Ethernet)
DC Voltage
• Range: 100 mV to 1000 V (1050 V maximum)
• Resolution: 1 nV maximum
• 1-year relative accuracy: 4.0 μV/V (95% confidence), 5.7 μV/V (99% confidence)
• 24-hour stability: 0.5 μV/V (95% confidence), 0.65 μV/V (99% confidence)
DC Current
• Range: 10 µA to 2 A
• Resolution: 1 pA maximum
• 1-year relative accuracy: 9 µA/V (95% confidence), 12 µA/V (99% confidence)
AC Voltage
• Range: 10 mV to 1000 Vrms; 1 Hz to 10 MHz bandwidth
• Resolution: 1 nV maximum
• 1-year relative accuracy: 80 μV/V (95% confidence), 103 μV/V (99% confidence)
AC Current
• Range: 10 µA to 2 A; 1 Hz to 100 kHz
• Resolution: 1 pA maximum
• 1-year relative accuracy: 300 µA/A (95% confidence), 387 µA/V (99% confidence)
Resistance
• Range: 1 Ω to 10 GΩ (20 GΩ maximum)
• Resolution: 10 nΩ maximum
– Key Features
• Direct digitizing architecture optimizes speed and accuracy simultaneously
• Controllable aperture from 0 ns to 10 s enables custom integration times
• Dual confidence levels (95% and 99%) in accuracy specifications support rigorous uncertainty budgeting
• High-speed data streaming via USB, Ethernet, and GPIB
– Typical Applications
• Calibration laboratory reference measurements
• Automated test systems requiring high-speed digitizing
• Research and development in precision measurement
• Quality control in electronics manufacturing
– Compatibility & Integration
SCPI-compliant command set. Common platform architecture with Fluke 8588A Reference Multimeter. Intuitive user interface designed for both manual operation and programmatic control.
