Guildline Instruments 9230A SERIES of precision DC current shunts / standards are true 4-terminal devices intended for the precise measurement of DC current. They are constructed using elements made from a Guildline proprietary metal alloy and are supported on an insulating base for mechanical stability.


  • Extremely Low Self-Heating Effects
  • Low Temperature Coefficients
  • Low Thermal EMF’s
  • Wide Dynamic Range
  • Controlled Current Distribution Through the Element
  • < 10 ppm Long Term Stability
  • Air or Oil Cooled Applications
  • 3 New Values, 3000 A, 5000 A and 10,000 A!
  • Series Ranges from 10 A to 10,000 A
  • 3 Point Current Calibration Provided
  • Special Values Available On Request
  • Available Forced Convection Option Improves Power Dissipation