The 66252 DMM Switch is a unique option for 6625A Resistance Measurement Systems. This very high isolation switch allows the 6625A System Resistance Standards to be used for both Measurement and Source Applications without having to disconnect and reconnect wires.


  • Allows System’s Resistance Standards to Be Used as Resistance Sources
  • Available In Bench Configurations (No Modification to Existing 6625A Systems)
  • Usable Resistance Range 1Ω to 100 MΩ
  • Input Impedance >1014
  • Use With Any Number of Scanners and Includes Scanner Low Thermal Short
  • Includes Lead Compensation Procedures For Low Resistance Connection to Long Scale DMM’s