Guildline Instruments 6623A Series High Current Range Extenders

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World’s First Modular and Expandable Family of Bridge Current Range Extenders

Based on patented technology, Guildline’s 6623A Series of High Current Range Extenders / Sources offer optimal performance and modularity. The 6623A Series is a family of range extenders, with available current outputs of 3 A to 10,000 A.


  • Unique Guildline PATENTED Design
  • Dual Design – Extender and Precision DC Source
  • Includes Built-in Precision Current Source with Electronic Polarity Switching
  • Linearity: ± 0.01 ppm of Full Scale
  • Output Current Stability Typically < 10 ppm for 1000 A and Higher – Best in the World!
  • Advanced Modular Design, Over 64 Expandable Outputs in 150 A Increments to 10,000 A, Investment Protection
  • Measures Resistances Down to 0.1 μΩ
  • Automatic Control from 6622A Series Bridge
  • Automatic Load Balancing
  • NO External Power Supplies Required
  • NO Need for any Mechanical Reversing Switches and Compressed Gas
  • Unique USB Programmable Controller (model 66259) Allows 6623A to be Used as Stand-Alone Precision DC Current Source
  • Safety (Fault) Protections in Place
  • Complete Shunt Measurement Systems Available

PDF Download  6623A Series High Current Range Extenders Datasheet

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