Guildline Instruments 6645Q Quantum Hall System for primary resistance standards

Guildline Instruments logo

The Guildline 6645Q Quantum Hall System was developed to meet the needs of Standards Laboratories across the world for improved calibration and maintenance of primary resistance standards.


  • Full-featured, turn key system that is ready to use right away!
  • Featuring NEW Patented 6640Q-QHR Bridge!
  • Best Accuracy: ± 0.015 ppm of Reading at QHR Currents of 30 μA – 100 μA with Interchange!
  • Fasted Measurement Speed of 2 Seconds!
  • Built in Nano-Voltmeter for Hall Resistances and Longitudinal Resistances!
  • Pre-Cool with Nitrogen For Cost Savings!
  • 4 to 6 Day Uninterrupted QHR Operation!
  • Option for Magnetic Field Strength Up To 14 Tesla!
  • Premium QHR Sample Included, Built by NMI with 20 Years’ Experience
  • Change All Key Parameters “On-the-Fly” While the Measurement is Running!
  • BridgeWorksTM Data Acquisition Software!

PDF Download   Guildline 6645Q Quantum Hall System Datasheet

Click here to Make an Enquiry / Demo / Calibration

If you would like more information regarding this product, simply email us here.

  • Enter your query
  • Drop files here or
    Accepted file types: jpg, gif, png, pdf, Max. file size: 1 MB, Max. files: 4.
    • This field is for validation purposes and should be left unchanged.