Fluke 8508A 8.5 Digit Reference Multimeter

• Fluke 8508A 8.5 Digit Reference Multimeter (BC# - L/T)

Fluke 8508A 8.5 Digit Reference Multimeter

The Fluke 8508A is an 8.5-digit reference multimeter designed for calibration laboratories and other work that requires highly precise electrical measurements. It serves as a trusted measuring instrument for checking voltage, current, and resistance standards, as well as verifying other test equipment.

The 8508A measures both DC and AC voltage. Its high resolution helps users detect small changes that an ordinary multimeter may not show, making it useful when calibrating voltage sources or comparing precision standards. It can also make voltage ratio measurements for more specialized calibration work.

For current measurements, the 8508A covers DC and AC signals up to 20 A. Its low-burden current input is designed to minimize the effect the meter has on the circuit being measured. This helps technicians obtain reliable results when testing current sources and calibrators.

The instrument also measures resistance from very low values up to 20 GΩ. It supports measurement techniques such as current reversal, which helps reduce errors caused by thermal voltages. With a suitable platinum resistance thermometer, the 8508A can measure temperature and assist with thermometer calibration.

The 8508A brings these functions together in a single bench instrument for precise comparison, calibration, and verification tasks. Its selectable resolution and range of measurement modes make it useful as a laboratory reference rather than just a general-purpose meter. Fluke has discontinued the model, so the calibration status and condition of an individual unit are especially relevant when buying one.

Features:

• 8.5-digit resolution for precision laboratory measurements
• AC and DC voltage measurement, up to 1050 V
• AC and DC current measurement, up to 20 A
• Resistance measurement up to 20 GΩ
• Voltage and resistance ratio measurements
• Low-burden current input that reduces the meter’s effect on the circuit
• Current reversal to help reduce thermal voltage errors in resistance measurements
• Temperature measurement using a suitable platinum resistance thermometer
• Selectable measurement resolution and front-panel input terminals
• Optional rear input terminals for comparison and ratio measurements