The Fluke 8502A is a 6½-digit digital multimeter engineered for precision DC and resistance measurements with optional AC, current, and interface capabilities. Microprocessor control and modular construction enable flexible configuration, remote programming, and rapid data acquisition at up to 500 readings per second. Active components housed in plug-in modules minimize downtime and support system integration via optional IEEE-488 interfaces.
## Technical Specifications
**Measurement Resolution & Accuracy**
• Resolution: 6½ digits
• DC voltage accuracy: 6 ppm basic
• True RMS AC accuracy (Option 09A): Up to 0.015% within 6-second maximum response across eight ranges (30 Hz to 100 kHz)
• Overrange capability: Up to 212%
**Measurement Ranges (Standard)**
• DC Volts: 5 ranges
• Resistance: 8 ranges
• Current: 5 ranges
**Performance Characteristics**
• Acquisition speed: Up to 500 readings/second
• Warm-up time to rated accuracy: 2 hours
• Operating temperature: 0°C to 50°C
• Non-operating temperature: -40°C to 70°C
• Humidity range: 0°C to 18°C at 80% RH; 18°C to 40°C at 75% RH; 40°C to 50°C at 60% RH
• Environmental compliance: MIL-T-28800 Class 5 style E for shock and vibration
**Physical**
• Dimensions: 10.8 cm H × 42.5 cm L × 43.2 cm W
## Key Features
• Plug-in module architecture for rapid reconfiguration
• Microprocessor-controlled measurement and control operations
• Front-panel and remote programming interfaces
• Optional AC measurement via true RMS converter (Option 09A); 400 Hz operation supported
• Optional calibration memory (Option 04) for automatic correction factor entry
• Optional current shunt enhancement (Option 03)
• Optional IEEE-488-1975 interface (Option 05) for digital system control
• Interface isolator and external trigger capability (Option 08A) for guarded remote operations
## Typical Applications
Precision bench and system-integrated DC voltage and resistance measurement; automated test systems requiring high-speed data logging; standards-traceable calibration environments; temperature-stable laboratory measurements.
