High-Accuracy DC Current Transformer Calibration | Ultra-Low Measurement Uncertainty | DC Current Measurement up to 3,000 A
The Measurements International (MI) 6300 Series DCCT Calibration Systems deliver exceptional accuracy, ultra-low measurement uncertainty, and advanced measurement capabilities for the calibration and characterization of DC Current Transformers (DCCTs).
Engineered for National Metrology Institutes (NMIs), accredited calibration laboratories, research facilities, and industrial measurement applications, the MI 6300 Series provides a reliable solution for high-precision DC current transformer testing and calibration.
Designed around MI’s proprietary High Current DC Range Extender technology, the 6300 Series supports DC current measurements from 1 A to 3,000 A, with achievable measurement uncertainties of just a few parts per million (ppm) or less, depending on the system configuration and measurement conditions.
With current ratios of up to 1:1,000,000, the MI 6300 Series offers the precision, flexibility, and performance required for today’s most demanding DC current measurement applications.
DC Current Transformers are essential components in high-accuracy industrial and laboratory DC current measurement systems. Unlike conventional current shunts, DCCTs can provide exceptionally low measurement uncertainties without requiring extended warm-up periods.
However, the capacitive and inductive characteristics of DCCTs require carefully controlled current-reversal and measurement techniques to achieve the highest levels of accuracy.
The MI 6300 Series is specifically designed to address these challenges, providing advanced measurement capabilities for accurately determining DCCT transimpedance, evaluating measurement performance, and supporting precision calibration.
From advanced metrology research to industrial current measurement verification, the MI 6300 Series provides a dependable platform for laboratories seeking exceptional measurement confidence.
Flexible, High-Accuracy Calibration for Voltage-Output and Current-Output DCCTs
The MI 6300A provides a versatile approach to high-precision DC current transformer calibration using two high-resolution 8½-digit digital multimeters (3458A).
This configuration determines DCCT transimpedance through precision measurements that include the absolute value of the applied test current.
Designed to accommodate both voltage-output and current-output DCCTs, the MI 6300A offers laboratories a practical and flexible calibration solution for a wide range of DC current measurement technologies.
System accuracy is influenced by the measurement performance and calibration of the digital multimeters, making instrument selection and traceability important considerations when establishing overall calibration uncertainty.
The MI 6300A DCCT Calibration System combines precision measurement instruments with MI’s advanced High Current DC Range Extender technology to support accurate and efficient DCCT calibration.
A typical system configuration includes:
This integrated approach enables laboratories to perform high-accuracy DCCT characterization while improving measurement flexibility and laboratory productivity.
The MI 6300 Series is ideally suited for laboratories and organizations that demand high accuracy, measurement repeatability, and confidence in their DC current calibration processes.
Typical Applications Include:
Precision Measurement Expertise
Measurements International brings decades of experience in developing high-performance electrical metrology systems for demanding research and calibration applications.
Exceptional Low-Uncertainty Performance
The MI 6300 Series is designed to support calibration applications requiring extremely low measurement uncertainties, helping laboratories meet increasingly demanding accuracy requirements.
Advanced High Current Range Extender Technology
MI’s proprietary range extender technology enables exceptional current-ratio performance while expanding the capabilities of precision DC current measurement systems.
Flexible System Configurations
With support for voltage-output and current-output DCCTs, selectable measurement configurations, and optional multi-device calibration, the 6300 Series adapts to a variety of calibration requirements.
Designed for Professional Metrology Laboratories
Built to support demanding precision measurement environments, the MI 6300 Series combines advanced measurement technology with practical laboratory flexibility.
When precision matters, trust Measurements International’s MI 6300 Series DCCT Calibration Systems to deliver advanced measurement capability, low uncertainty, and dependable performance.
Whether you’re developing new DC current measurement technologies, maintaining traceable calibration standards, or expanding your laboratory’s high-current calibration capabilities, the MI 6300 Series provides a highly accurate solution for your requirements.
| Specifications 6300 |
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| Measurement Range | Current | Ratio | Accuracy |
| 150 mA to 1 A | 10 | < 7 ppm | |
| 1 A to 10 A | 100 | < 7 ppm | |
| 10 A to 100 A | 1000 | < 7 ppm | |
| 100 A to 300 A | 1000 | < 7 ppm | |
| 300 A to 1000 A | 10,000 | < 7 ppm | |
| 1000 A to 3000 A | 100,000 | < 7 ppm | |
| 1000 A to 3000 A | 1,000,000 | < 7 ppm | |
| Linearity | 0.01 ppm | ||
| Temperature Coefficient | 1.2 (0.15) + 0.1 ppm3 | ||
| Communication | IEEE-488 | ||
| Test Current Accuracy | 150 mA to 100 A | 4.6 (3.1) + 0.3 ppm2 | |
| 100 A to 1000 A | 4.6 (3.1) + 0.3 ppm2 | ||
| 1000 A to 3000 A | 4.6 (3.1) + 0.3 ppm2 | ||
1. 2 sigma ratio accuracy of the 6010D is 0.04 ppm.
2. Current accuracy is < 0.01 % = 0.01 ppm in ratio.
3. 3458A accuracy without Acal and with Acal. (Accuracy depends on how well the 3458A can be calibrated.)
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Measurements International Ltd.
PB 2359, 118 Commerce Drive,
Prescott, Ontario, Canada K0E 1T0
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