GUILDLINE Instruments 6530 TeraOhm Bridge-Meter Series is the latest innovation in High Resistance and Ultra-High Resistance Measurements. These Bridge-Meters incorporate the latest technology for high resistance measurements providing Metrologists with measurement results superior to that of commerciallyavailable Dual Source Bridges. The 6530 Series allows users to make Direct Resistance Measurements as well as Bridge Ratio Measurements up to 20 PΩ with the best uncertainties above 1 GΩ of any commercially available resistance measurement instrument.


  • Bridge Mode and Direct Measurement Mode of Operation
  • Resistance Range 100 kΩ to Over 10 PΩ
  • Bridge Mode Multi-Ratios up to 1000:1
  • Test Voltages 1 to 1000 Volt
  • Optional DC Current Measurement Range 10 μA to 100 fA
  • Existing 6520’s can be Upgraded to any of the four NEW 6530 Models
  • Automatic Ranging for Resistance, Integration Time and Threshold Voltage
  • Better Performance & More Functionality than Commercially Available Dual Source Bridges
  • Surface and Volume Resistivity Measurements with 65221 Test Fixture
  • Environmental Monitoring with 65220 Sensors
  • Logging, Graphical Display and Analysis of Measurements
  • Sofcal™ for On-Board Intelligence and Front Panel Calibration
  • Automation of Multiple Measurements with NEW Guildline 6564 Resistance Scanner
  • TeraCal™ Data Acquisition Software Automates Operation
  • SCPI compliant IEEE-488.2 and RS232C Built-In as Standard
  • Rear Input Option