Product Highlights
The RX-30, RX-31, and RX-33 represent the pinnacle of energy measurement accuracy, precision, and stability. Engineered for demanding metrology applications, the RX-33 provides industry-leading 0.01% accuracy, long-term measurement stability, and full NIST-traceability, making it ideal for meter test systems, calibration labs, and standards laboratories.
With support for both single-phase and polyphase configurations, advanced measurement capabilities, and seamless integration with WECO test equipment, the RX-30, RX-31, and RX-33 ensure unmatched performance and confidence in every test. Built with RADIAN’s legacy of excellence, they set the standard for reliable and repeatable energy measurement.
Precision Perfected with RADIAN
RADIAN RX-30
The RX-30 provides ±0.04% (400 ppm) energy accuracy at 0.5 power factor, making it a dependable choice for meter testing, calibration, and precision measurement work. It supports wide voltage, current, power, and frequency ranges while maintaining consistent performance across typical utility and laboratory environments.
Voltage accuracy is 0.02% (200 ppm) and direct AC current accuracy is 0.028% (280 ppm) at TCAL. Power accuracy matches the energy class at 0.04% (400 ppm). Long-term drift is managed through a stability specification of 8 ppm × √month, helping maintain measurement integrity over time. For energy measurements, the temperature coefficient is 5 ppm/°C, supporting predictability as environmental conditions change.
Performance Highlights
• Power and Energy accuracy: ±0.04% (400 ppm) (0.02% / 200 ppm at PF=1)
• Voltage accuracy: 0.02% (200 ppm)
• Current accuracy: 0.028% (280 ppm)
• Stability: 8 ppm × √month
• Energy temperature coefficient: 5 ppm/°C
RADIAN RX-31
The RX-31 delivers ±0.02% (200 ppm) energy accuracy at 0.5 power factor, offering a reduced uncertainty class compared to the RX-30. This same accuracy level applies to its 0.02% (200 ppm) power measurements, supporting applications that require tighter uncertainty budgets and higher traceability.
Voltage accuracy is 0.01% (100 ppm) and direct AC current accuracy is 0.014% (140 ppm) at TCAL. Long-term performance benefits from a stability specification of 4 ppm × √month, providing improved control over drift. For energy measurements, the temperature coefficient remains 5 ppm/°C, ensuring consistent behavior with temperature variation.
Performance Highlights
• Power and Energy accuracy: ±0.02% (200 ppm) (0.01% / 100 ppm at PF=1)
• Voltage accuracy: 0.01% (100 ppm)
• Current accuracy: 0.014% (140 ppm)
• Stability: 4 ppm × √month
• Energy temperature coefficient: 5 ppm/°C
RADIAN RX-33
The RX-33 provides ±0.01% (100 ppm) energy accuracy at 0.5 power factor, offering the most refined accuracy class within the RX series. This performance supports advanced calibration laboratories, metrology centers, and manufacturing environments where minimized uncertainty and maximum traceability are essential.
Voltage accuracy is 0.005% (50 ppm) and direct AC current accuracy is 0.007% (70 ppm) at TCAL. Power accuracy aligns with the energy class at 0.01% (100 ppm), with accuracy improving to 0.005% (50 ppm) at unity power factor. Long-term drift control is achieved through a stability specification of 4 ppm × √month for both power and energy functions. For energy measurements, the temperature coefficient is 5 ppm/°C, ensuring consistent performance under varying environmental conditions.
Performance Highlights
• Power and Energy accuracy: ±0.01% (100 ppm) (0.005% / 50 ppm at PF=1)
• Voltage accuracy: 0.005% (50 ppm)
• Current accuracy: 0.007% (70 ppm)
• Stability: 4 ppm × √month
• Energy temperature coefficient: 5 ppm/°C
Features
- Ultra-High Accuracy – Industry-leading energy measurement precision with long-term stability and reliability.
- Single-Phase & Polyphase Compatibility – Supports meter testing, calibration, and power quality analysis.
- Multiple Accuracy Classes – Available in ±0.04%, ±0.02%, and ±0.01% accuracy levels to match specific testing needs.
- Advanced Measurement Capabilities – Measures voltage, current, power, phase angle, harmonics, and power factor with unmatched consistency.
- Seamless Integration – Works with WECO Meter Test Systems and other calibration equipment for comprehensive testing.
- Durable & Reliable – Designed for long-term operational stability and minimal maintenance.
- Backed by ISO/IEC 17025 accreditation for industry-leading measurement uncertainties and unmatched customer trust for over 35 years.
Exceptional Accuracy, Precision, and Stability
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