TH0520 Precision Current and Voltage Measurement
The TH0520 is a high-precision current and voltage measurement instrument designed to support direct measurement and sensor-based measurement across a wide range of AC and DC electrical signals. It can directly measure currents up to 2 A and voltages up to ±0.5 V, and can be paired with precision I/V and V/V conversion modules to extend measurement capabilities into high-current or high-voltage environments.
With wide-bandwidth measurement capability and selectable AC or DC modes, the TH0520 is suitable for calibrating AC/DC current and voltage standard sources, multimeters, power meters, and current sensors. Its multipoint resolution capability, combined with ultra-low measurement uncertainty, makes it a valuable tool for professional calibration and metrology laboratories.
The instrument supports direct and sensor-based input methods including straight and piercing sensor connection options, allowing accurate measurement up to 2000 A. Its robust internal architecture ensures excellent frequency response, stability, and repeatability, ensuring reliable results in calibration, power system testing, and precision laboratory measurement applications.
| Measurement Type | Current Range | Resolution | Measurement Uncertainty (k=2, ppm*RD+ppm*RG) |
|---|---|---|---|
| Direct Measurement | 100 μA | 0.1 nA | DC: 60+40 | 45–200 Hz: 120+80 | 200–1k Hz: 200+100 | 1k–5k Hz: 300+200 |
| 200 μA | 0.1 nA | Same as above | |
| 500 μA | 0.1 nA | Same as above | |
| 1 mA | 1 nA | 30+20 | 60+40 | 100+50 | 150+50 | |
| 2 mA | 1 nA | Same as above | |
| 5 mA | 1 nA | Same as above | |
| 10 mA | 10 nA | Same as above | |
| 20 mA | 10 nA | Same as above | |
| 50 mA | 10 nA | Same as above | |
| 100 mA | 100 nA | Same as above | |
| 200 mA | 100 nA | Same as above | |
| 500 mA | 100 nA | Same as above | |
| 1 A | 1 μA | Same as above | |
| 2 A | 1 μA | Same as above | |
| Sensor Measurement (Straight In / Piercing) | 5 A | 1 μA | 30+20 | 200+100 | 500+100 | 1000+100 |
| 10 A | 10 μA | Same as above | |
| 20 A | 10 μA | Same as above | |
| 50 A | 10 μA | Same as above | |
| 100 A | 100 μA | Same as above | |
| 200 A | 100 μA | Same as above | |
| 500 A | 100 μA | Same as above | |
| 1 kA | 1 mA | Same as above | |
| 2 kA | 1 mA | Same as above |
Key Features
- High-precision current and voltage measurement capability for AC and DC applications.
- Direct measurement up to 2 A and sensor-based measurement up to 2000 A.
- Compatible with precision I/V and V/V conversion modules for extended functionality.
- Supports calibration of AC/DC source instruments, meters, and sensors.
- Wide frequency measurement range from DC up to 5 kHz.
- Ultra-fine resolution as low as 0.1 nA for low-current applications.
- Stable measurement uncertainty performance across multiple frequency bands.
- Suitable for metrology labs, R&D centers, power utilities, and manufacturing calibration environments.
- Supports multiple connection modes including direct, straight sensor, and piercing sensor measurement.