Keysight B2985A Electrometer/High Resistance Meter

Overview

The Keysight B2985A is a graphical electrometer and high-resistance meter combining exceptional measurement capabilities for low-level currents with support for resistance measurements up to 10 PΩ (10¹⁵ Ω). It features a 4.3-inch color LCD with graphical interface, delivering trend charts and histograms alongside numeric data. The integrated 1,000 V voltage source enables comprehensive electrical characterization of high-impedance materials and devices.

Key Features

• Minimum current resolution of 0.01 fA (10⁻¹⁷ A) with current measurement range 0.01 fA to 20 mA
• 6.5-digit measurement resolution
• Resistance measurement up to 10 PΩ (10¹⁵ Ω)
• Input impedance > 200 TΩ for voltage measurement up to 20 V
• Built-in ±1,000 V voltage source
• Charge measurement from 1 fC to 2 μC with 6.5-digit resolution
• Graphical viewing modes: Meter, Graph, Histogram, and Roll View
• Real-time histogram and auto navigation for optimal settings
• Setup Integrity Checker function for noise isolation (optional)
• Versatile interfaces: USB 2.0, LAN, GPIB, LXI Core
• 100,000-point sample buffer and free PC control software

Applications

• Material science research (dielectrics, ferroelectric materials, semiconductors, polymers)
• Device characterization (capacitors, resistors, sensors, optoelectronics)
• High-impedance material testing and analysis