TH0500 Precision Current Conversion Standard
The TH0500 Precision Current Conversion Standard Series is designed for high-accuracy current measurement and calibration applications. Using advanced DC current comparator technology, the TH0500 converts nominal DC/AC currents ranging from 0.1 A to 20 kA into proportionally smaller voltage or current signals while maintaining exceptional ratio accuracy.
Available in both direct-connected and through-core configurations, the TH0500 delivers excellent frequency response performance and long-term stability, making it suitable for metrology laboratories, high-precision calibration systems, and industrial power equipment testing.
Applications
- Current transformer (CT) calibration
- Power equipment and relay protection testing
- Precision measurement systems and metrology labs
- Grid monitoring and instrumentation verification
- Manufacturing quality control and R&D testing
Direct Connected I/I Conversion Standard
| Model | Nominal Input Current (A) | Nominal Output Current (A) | Transformation Ratio | Accuracy DC (± μA/A) | Accuracy AC @ 53Hz (± μA/A) |
|---|---|---|---|---|---|
| TH0500-I-D-01A-01A-2 | 0.1 | 0.1 | 1:1 | 2 | 150 |
| TH0500-I-D-02A-01A-2 | 0.2 | 0.1 | 2:1 | 2 | 150 |
| TH0500-I-D-05A-01A-2 | 0.5 | 0.1 | 5:1 | 2 | 150 |
| TH0500-I-D-1A-01A-2 | 1 | 0.1 | 10:1 | 2 | 150 |
| TH0500-I-D-20A-01A-2 | 20 | 0.1 | 200:1 | 2 | 150 |
Through Core I/I Conversion Standard
| Model | Nominal Input Current (A) | Nominal Output Current (A) | Transformation Ratio | Accuracy DC (± μA/A) | Accuracy AC @ 53Hz (± μA/A) |
|---|---|---|---|---|---|
| TH0500-I-T-500A-02A-5 | 500 | 0.2 | 2500:1 | 5 | 150 |
| TH0500-I-T-1kA-05A-5 | 1,000 | 0.5 | 2000:1 | 5 | 150 |
| TH0500-I-T-20kA-5A-20 | 20,000 | 5 | 4000:1 | 20 | 150 |
Key Features
- High-precision DC current comparator technology
- Supports DC and AC current testing up to 5 kHz
- μA/A level accuracy performance
- Wide measurement capability: ±0–120% FS
- Low phase deviation and excellent long-term stability
- Suitable for high-current metrology and calibration systems
