The Fluke 8840A is a 5.5-digit benchtop system digital multimeter engineered for precision measurement in laboratory and automated test environments. Its vacuum fluorescent display delivers clear readability, while selectable 2-wire and 4-wire resistance measurement modes accommodate both standard and low-resistance applications. With basic DC accuracy of 0.005% over one year and configurable reading rates up to 100 readings per second, the 8840A supports high-throughput data acquisition without sacrificing measurement integrity. Front-panel fuse access and closed-case calibration simplify field maintenance, while built-in self-tests verify measurement reliability.
## Technical Specifications
**Display & Performance**
• 5.5-digit vacuum fluorescent display
• Up to 100 readings per second (Fast mode); 20 readings/sec (Medium); adjustable Slow mode
• Basic DC accuracy: 0.005% for 1 year
**DC Voltage**
• Ranges: 200 mV to 1000 V
• Input resistance: 10 MΩ
• Input protection: 1000 V dc or peak ac on any range
**AC Voltage (Option -09 or -059)**
• Ranges: 200 mV to 700 V
• True RMS measurement
• Bandwidth: 20 Hz to 100 kHz
• Input impedance: 1 MΩ shunted by <100 pF
• Input protection: 700 V rms, 1000 V peak, or 2×10⁷ V-Hz product (whichever is less)
• Accuracy: 0.07% to 1.2% of reading + 100–300 counts (depending on frequency band)
**DC Current**
• Range: 2000 mA
• Burden voltage: 1 V dc or rms ac typical at full scale
• Protection: 2 A front-panel fuse (250 V) and 3 A internal fuse (600 V)
**AC Current (Option -09 or -059)**
• Ranges: 200 mA to 2000 mA
• True RMS measurement
• Bandwidth: 20 Hz to 5 kHz
• Protection: 2 A front-panel fuse (250 V) and 3 A internal fuse (600 V)
• Accuracy: 0.4% to 2.0% of reading + 200 counts (depending on frequency band)
**Resistance**
• Ranges: 20 Ω to 20 MΩ
• 2-wire and 4-wire selectable measurement
• Input protection: <6.5 V on 200 Ω–200 kΩ ranges; <13 V on 2000 kΩ and 20 MΩ ranges
## Key Features
• Selectable reading rates optimize measurement speed versus noise trade-off
• Built-in self-tests ensure measurement validity
• Closed-case calibration minimizes downtime
• Accessible front-panel fuse protection
## Typical Applications
• Automated test systems and data acquisition
• Precision bench measurements in R&D and manufacturing
• Systems integration requiring high reading rates
