Product Highlights
The RD-22 provides ±0.005% (50 ppm) energy accuracy, delivering a refined accuracy class suited for advanced calibration, metrology, and precision measurement applications. As a single-phase reference standard, it supports high-confidence verification and calibration tasks where minimized uncertainty and consistent performance are essential.
Voltage accuracy is 0.0025% (25 ppm) and direct AC current accuracy is 0.0035% (35 ppm) at TCAL, offering tightly controlled measurement capability across the supported operating ranges. Long-term drift is managed through a stability specification of 4 ppm × √month, maintaining reliable performance over extended periods. For energy measurements, the temperature coefficient is 5 ppm/°C, ensuring predictable behavior with environmental variation.
FEATURES
- Power and Energy accuracy: ±0.005% (50 ppm)
- Voltage accuracy: 0.0025% (25 ppm)
- Current accuracy: 0.0035% (35 ppm)
- DC to AC transfer accuracy: 0.005%
- Stability: 3 ppm × √month
- Single-phase reference standard
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