TH0680 Multiplexing I/V Selection Units
The TH0680 is a high-precision power-frequency current converter designed with integrated multi-range precision current transformers and high-stability resistive elements. It converts AC power-frequency current into a standardized 1 V analog voltage output, ensuring stable, accurate, and repeatable conversion performance.
Engineered for use in calibration laboratories, metrology institutions, and electrical measurement systems, the TH0680 provides exceptionally low uncertainty and high accuracy across multiple primary current ranges, making it ideal for precision meter verification, power analyzer calibration, and reference instrumentation.
| Primary Nominal Input Current | Secondary Output Voltage | Conversion Ratio | Ratio Measurement Uncertainty (k=2) |
|---|---|---|---|
| 0.5 A | 1 V | 1 V / 0.5 A | 6.5 ppm |
| 1 A | 1 V | 1 V / 1 A | 5 ppm |
| 2.5 A | 1 V | 1 V / 2.5 A | 6.5 ppm |
| 5 A | 1 V | 1 V / 5 A | 5 ppm |
| 10 A | 1 V | 1 V / 10 A | 6.5 ppm |
| 20 A | 1 V | 1 V / 20 A | 5 ppm |
| 50 A | 1 V | 1 V / 50 A | 6.5 ppm |
| 100 A | 1 V | 1 V / 100 A | 5 ppm |
Key Features
- High-accuracy AC current-to-voltage conversion with multi-range input capability
- Standardized 1 V precision output compatible with advanced measurement equipment
- Ultra-low uncertainty performance down to ±5 ppm
- Integrated precision current transformers ensure stable, drift-free operation
- Ideal for meter calibration, power analyzer testing, and laboratory standards
- Designed for long-term stability and repeatable high-precision measurements