The 6622A Series provides the best in measurement uncertainties for Direct Current Comparator (DCC) Resistance Bridges. Unique innovations in 6622A design and modularity means users no longer have to decide what Bridge satisfies current requirements as well as future requirements. Optional modules allow for normal, high ohms, and low ohms measurements without having to purchase multiple bridges as per competitive products.


  • Widest Available Range of Any Commercial Resistance Bridge From 1 mΩ ~1 GΩ
  • Best Uncertainty ± 0.015 ppm of Reading
  • Full 10.5 Digits (0.1 ppb) Display Resolution and Linearity ± 0.01 ppm of Full Scale
  • Built-In Voltages to 1000 Vdc and Wide Range of Ratios: 0.1:1 ~ 100:1
  • Provides Measurement Results Including Graphics on Built-In Display
  • Change All Key Parameters “On-the-Fly” While Measurement Is Running
  • Extended Low End Range Down to 0.1 μ with Currents Up to 10,000 A
  • Fully Programmable IEEE 488.2 With BridgeWorks™ Data Acquisition Software