6645Q Quantum Hall System

Guildline Instruments 6645Q Quantum Hall System for primary resistance standards

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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.

FEATURES

  • 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

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    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.

    Based on Guildline’s 60 years of experience in high precision resistance measurements and 50 years of expertise in Direct Current Comparison (DCC) Resistance Bridges, the 6645Q System is the leading calibration system for primary resistance standards.

    Specifications

    Linearity

    ± 0.005 ppm (1:1 to 13.4:1 Ratios)

    Display resolution (ppm)

    Selectable (Programmable) from 0.0001 ppm to 10 ppm

    Temperature Coefficient

    0.01 ppm/°C of reading (Outside Operating Temperature)

    Automatic current reversal rate (in seconds)

    4 to 1637 programmable, increment of 1 second

    Fastest Measurement Sample Rate

    2 seconds

    Communication

    USB, IEEE 488.2, SCPI Based Language Instructions

    Test current (for measurements to 100 kO)

    Range (±30Vdc compliance)

    10 μA to 150 mA

    Resolution (μA)

    1 μA

    Accuracy [error(ppm) + offset(A)]

    ±100 ppm± 10 μA

    Bridge Operating Temperature to Full Specifications

    21 °C to 25 °C

    69.8 °F to  77 °F

    Bridge Maximum Operating Range (<50 % RH)

    + 18 °C to +28 °C

    +65 °F to +82 °F

    Bridge Temperature Storage Range

    -20 °C to +60 °C

    -4 °F to+ 140 °F

    Power Requirements

    I

    Vac: 100 V, 120 V, 220 V, 230 V and 240 V; All ± 10 %

    50 or 60 Hz ±5 %, Or 45 Hz – 65 Hz

    Dimensions (Width x Height x Depth)

    Weight

    440 mm x 200 mm x 465 mm

    I

    17.3″x7.8″x 18.3″

    27 kg

    I

    59.5 lbs

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