PRODUCT HIGHLIGHTS
The RD-22 Ultra Stable provides ±0.002% (20 ppm) energy accuracy and introduces an enhanced stability profile designed for laboratories and metrology environments requiring exceptionally low uncertainty, excellent long-term consistency, and superior measurement control. As a single-phase reference standard, it extends the capability of the RD-22 platform with improved transfer performance and demonstrated repeatability and reproducibility under stable test conditions.
In a stable test environment, repeatability for a 10-second test of ±0.6 µWh/VAh is attained at 120 V and 240 V at 5 A with a 95% confidence interval. Typical experimental repeatability has been demonstrated at less than ±0.25 µWh/VAh. Reproducibility measured over five days achieves ±2 µWh/VAh at 120 V and 240 V at 5 A with a 95% confidence interval, supporting consistent results across extended measurement intervals.
FEATURES
- Power and Energy accuracy: ±0.002% (20 ppm)
- 10-second repeatability: ±0.6 µWh/VAh (typical < ±0.25 µWh/VAh)
- Five-day reproducibility: ±2 µWh/VAh
- Single-phase reference standard
- NIST-Traceable Measurement – Fully traceable to national standards for confidence in every reading.
- Backed by ISO/IEC 17025 accreditation for industry-leading measurement uncertainties and unmatched customer trust for over 35 years.
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