6000C Automated High Resistance Ratio Bridge

Introducing the all-new Model 6000C

A fully automated bridge designed to revolutionize the measurement of high-value resistors. Powered by advanced Cutkosky Divider technology, this innovative solution enhances accuracy while operating at lower currents. The Cutkosky (or Binary Voltage Divider) Technology eliminates the typical errors found in direct current comparators, offering unparalleled improvements in measurement uncertainty.

Equipped with a built-in guard circuit, the 6000C ensures optimal protection for the measuring circuit, and can also drive the measuring leads, as well as the guarded detector and resistor enclosures. This feature significantly boosts the effective insulation resistance, enhancing both the precision and overall performance of your measurements.

The Model 6000C is the ideal tool for high-precision resistor measurement, combining cutting-edge technology with unmatched reliability for your most demanding applications.

6820T Compact Dry QHR System

6820T Compact Dry QHR System

6800T

  • Compact dry quantum Hall system
  • System accuracy: < 0.003 ppm with CCC Model 6200A
  • System accuracy: < 0.015 ppm with DCC Model 6020Q
  • 5 Tesla standard system magnet
  • Stable controlled sample environment
  • Base temperature: < 3.6 K
  • Low operating costs
  • Direct transfer to 100 Ω, 1 kΩ, 10 kΩ, and 100 Ω Standards
  • System range: 0.1 Ω to 100 kΩ
  • Graphene device values: 1 kΩ, 10 kΩ, 12.9064037 kΩ and 100 kΩ
  • Triple sample device mounting
  • Eliminate helium requirements

 

 

 

8110A 10 Volt Reference

8110A 10 Volt Reference

 

Featuring:

  • Industry Leading Stability
  • Built-in reversing switch for + 10 V, – 10 V
  • 30 Days: ± 0.25 µV/V
  • 90 Days: ± 0.75 µV/V
  • 1 Year: ± 1.5 µV/V
  • Built-in battery backup
6020A Ratio/Resistance Bridge

6020A Ratio/Resistance Bridge

  • NEW:
    • micro-controller for improved speed and functionality
    • capacitive touchscreen with enhanced design and easy-to-use operation
    • zero filter
    • 1 kHz sample Rate
    • selectable settle time and measurement time
    • MI Software Package
  • Best accuracy: < 0.025 µΩ/Ω
  • Maximum ratio: 14:1
  • IEEE488.2 standard
  • System integration with Measurements International (MI) Matrix Scanners and High-Current Range Extenders
  • Two selectable measurement algorithms

 

6200A Cryogenic Current Comparator (CCC)

6200A Cryogenic Current Comparator (CCC)

Featuring:

  • Best uncertainty: < 3 parts in 10-9
  • Resistance range: 0.1 Ω to 1MΩ
  • Maximum ratio: 1000:1
  • Helium re-condensing unit for low-loss system
  • Front panel or computer controlled operation
  • Designed by Dr. Carlos Sanchez

Introducing the Model 6200A Cryogenic Current Comparator Bridge (CCC) from Measurements International (MI) – the ultimate solution for achieving the highest level of resistance calibration accuracy. With an uncertainty of less than 3 parts in 10-9, our CCC surpasses all other technology on the market.

Since 1987, MI has been a leader in providing the most accurate DCC room temperature resistance bridges, allowing customers to achieve unbeatable accuracy levels. However, with the introduction of the Model 6200A CCC, we are proud to take your resistance calibration capabilities to new heights.

Designed by Dr. Carlos Sanchez, a renowned expert in precision electrical metrology with years of experience in CCC Bridges and Quantum Hall Resistance Standards (QHR), the Model 6200A is the ultimate choice for metrology laboratories. Don’t settle for anything less than the best. Trust MI to deliver unmatched accuracy and precision. Upgrade to the Model 6200A today.

6314A Precision Current Divider

6314A Precision Current Divider

Featuring

  • 1000:1 Range
  • No stabilization period
  • No power coefficient
  • No temperature coefficient
  • DC and AC operation
  • 3000 A Max Current DC

Overview

Measurements International has developed the 6314A Precision Current Divider to replace/improve the outdated (and often inaccurate) current shunts. The 6314A is a 1000:1 current divider, based on MI’s world-renowned resistance bridge and extender principles. Temperature stability and power coefficient issues adversely affect traditional current shunts. The 6314A’s current transformer creates no such issues.

The 6314A houses two sets of windings on a DC Current Comparator (DCC), allowing the input current to be divided by 1000. The current range is 150 A to 3000 A. It can accept both DC and AC currents, with uncertainties approximately 20 times less than a DC current shunt.

Combine the 6311A with the 6314A to reduce very large currents up to 1 mA. For instance, use a 6314A to divide up to 3000 A down to 3 A. Use a 6311A to further divide this to 30 mA, allowing a 1 Ω standard resistor and an 8 ½ digit DMM  to measure 3000 A with uncertainties of a few ppm.

Feature Benefit
No Temperature Coefficient Uncertainty reductions
No Stabilization Period Measureme immediately
No Power Coefficient No error difference from 5% to 100% of the range
AC/DC Use for both DC or AC
CT/Current Divider Current In is divided by 1000
< 5 ppm (DC) / < 20 ppm (AC) ∼ 20 times less than a traditional current shunt
Low Ownership Cost Save on calibration and shipping costs. No need for routine calibration
6311A Precision Current Divider

6311A Precision Current Divider

Featuring

  • 10A (100:1) and 300A (1000:1) ranges
  • No stabilization period
  • No power coefficient
  • No temperature coefficient
  • DC and AC operation

 

Overview

Measurements International has developed the 6311A Precision Current Divider to replace/improve the outdated (and often inaccurate) current shunts. The 6311A is a 100:1 and 1000:1 current divider, based on MI’s world-renowned resistance bridge and extender principles. Temperature stability and power coefficient issues adversely affect traditional current shunts. The 6314A’s current transformer creates no such issues. Simply apply power and measure the divided output.

The 100:1 range’s minimum current is 10A and the 1000:1 range’s maximum current is 300A. Both ranges can accept DC and AC current to 1kHz with uncertainties of < 5 and < 20 parts in 106, respectively. Comparatively, a DC current shunt has a 0.01%+ calibration uncertainty in most cases.

Feature Benefit
No temperature coefficient Reduces uncertainty
No stabilization period Measurements can be made immediately
No power coefficient No error difference from 5% to 100% range
AC/DC Works at DC and AC up to 1kHz
CT/Current Divider Current In is divided by either 100 or 1000
< 5 ppm DC / 20 ppm AC Approximately 1/20th of a traditional Current Shunt
6311A Graph 2

6311A Graph 2

6311A Graph 1

6311A Graph 1

1310A Automated Resistance Standard

1310A Automated Resistance Standard

1310A

Developed & designed by metrologists for metrologists & calibration technicians

  • Exceptional stability
  • Automated operation
  • 9 values
  • Customizable

Overview

Measurements International’s Model 1310A Automated Resistance Standard is an easy-to-use, cost-effective calibration instrument that offers the military sector, national, and third-party laboratories complete confidence in resistance standards. Designed with input from a world-leading National Measurement Institute, customers can be confident this new design offers exceptional calibration results.

Feature Benefit
9 resistors: 1 Ω, 10 Ω, 100 Ω, 1 kΩ, 10 kΩ, 100 kΩ, 1 MΩ, 10 MΩ, 100 MΩ, 1 external channel Complete line of decade value standards in one temperature-controlled enclosure
Hand-picked, high-precision resistors in a temperature-controlled chambe The internal high precision resistors deliver the highest level of performance
Internal resistance elements in a temperature-controlled chamber Excellent stability and extremely low-temperature coefficients
Single output cable for direct plug-in Easy operation without changing wires
Built for calibration of calibrators and DVMs Best stability: < 2.5 μΩ/Ω/year
Built-in 4-terminal scanner Simple-to-use, two-in-one instrument
External extra channel Connect to resistance value of your choice
Front panel or GPIB controlled Simple user operation
Internally mounted temperature sensor PT100 Monitor internal oven from front panel

Figure 2. Drift of MI Resistor Over a 10 Year Period
Figure 1. Drift of MI Resistor Over a 10 Year Period

Figure 3. 24 Hour Stability Testing Internal Temperature Chamber
Figure 2. 24 Hour Stability Testing Internal Temperature Chamber

1330A Automated Artifact Calibrator

1330A Artifact Transfer Standard

Three Standards, One Box

  • Fully automated artifact and DMM calibration from a single instrument
  • Primary 1 Ω and 10 kΩ
  • 10 V Zener Reference

Overview

Measurements International’s 1330A Artifact Transfer Standard is a highly versatile and accurate instrument that meets automated artifact calibration laboratory requirements (assigning values to internally generated parameters) for calibrators and DMMs, using a limited number of standards at recommended calibration intervals.

The 1330A houses a temperature-controlled instrument enclosure, three reference standards, a battery backup, and an external power supply (power cable).

Feature Benefit
Primary 1 Ω, 10 kΩ and 10 V references. All standards provided in one
temperature-controlled enclosure.
Clear connection for JVolt Comparison of 10 V Zener. Providing highest level traceability.
Manual (push buttons on the front panel) or automated control (select by GPIB interface). Ability to select appropriate standard (choice of 3) for calibration.
Output connections to calibrator or DMM on front panel. Choice of cables available (and supplied) feature direct plug-in for 57XX series calibrators or to the 3458A DMM.
Current standard value is extrapolated from prior calibrations. Enhanced automation and improved accuracy.
Oven temperature monitored by internal PRT. Provides better performance of artifacts as the temperature
environment is stable and controlled to less than 100 m°C.
Calibrated values of the standards entered in the unit. No requirement for set-up.
Front panel display showing certification value. Quick access and reference to information.
1340A High Precision Voltage Divider

1340A High Precision Voltage Divider

Simplify Your Procedures. Simplify Your Work.

  • High stability
  • No self alignment
  • Ratios: 10:1, 100:1 and 1000:1

Overview

DC voltage calibration and/or DVM and calibrator verification has never been so easy or reliable. Measurements International’s 1340A is the metrology industry’s leading choice. Its simplistic design is packed for optimal performance.

Model 1340A is another example of MI’s untouched resistance knowledge and experience. We invite metrologists and calibration technicians in national, military,  and third-party calibration laboratories to compare the 1340A’s performance against any of its competitors.

Feature Benefit
Ratios: 10:1, 100:1 and 1000:1

Reference divider outputs: to 1100 V

 Compare direct voltage levels of various sources to a 10 V voltage reference standard (1330A, 732B, 732C), with extreme precision
Industry-leading specifications means no self-alignment or pre-use calibration Customers no longer need to self-align or calibrate prior to each use. Saves time and money and frustration
Utilizes a special design network of high precision resistors mounted in a temperature-controlled chamber Shields divider resistors from outside noise and provides temperature stability to improve performance
Simple connectivity (front panel to calibrator; divider to DVM) Ease of use, saves time and money
Internally-mounted temperature sensor PT100 Connected to the front panel to monitor internal oven
New special, hand-selected resistors and configuration Lengthy, self-alignment is no longer required to create a divider network
Calibrate a divider directly against a 1330A, 732B or 732C reference Industry-leading advancement in commercial DC voltage products delivers exceptional performance
1340A Diagram

1340A Diagram

Figure 1. Example: 1000 V in divided to 10 V out to be measured

Offering the easiest-to-use instrument with complete confidence.

1340A Diagram 2

1340A Diagram 2

Figure 2. The above diagram illustrates using a 1330A, 732B or 732C reference in the connection sequence. A DVM can be used as a NULL detector to determine the offset of the 57XX series on the 10:1 and 100:1 ratio.

No Self-Alignment Required

Figure 1: 24 Hour Stability of Temperature Chamber

Figure 3: 24-Hour Stability of Temperature Chamber