XYTRONIC SINGLE-PHASE REFERENCE STANDARDS

RADIAN RX-10
RADIAN RX-11
RADIAN RX-15

The RX‑10, RX‑11, and RX‑15 are RADIAN’s next‑generation family of single‑phase energy reference standards, designed to deliver exceptional accuracy, precision and stability across field, shop and laboratory environments.

With accuracy classes of ±0.04%, ±0.02% and ±0.01% respectively, these compact units provide four‑quadrant measurement of voltage, current, phase angle, power, and energy (active/reactive/apparent)— all backed by direct NIST/NRC traceability and ISO/IEC 17025 accreditation.

The RADIAN RX-10, RX-11 and RX-15 in descending order on a transparent background.

Product Highlights

Built on RADIAN’s heritage of metrology excellence, the RX‑10, RX-11, and RX-15 combine Xytronic measurement technology, a familiar user interface, and a rugged cube form for seamless integration into existing test equipment and infrastructure.

Whether you’re verifying meters on‑site, calibrating test benches in the lab, or serving as a master standard, the RX‑10, RX-11, and RX-15 ensure timely, trusted results with over 40 simultaneous metrics and a wide autoranging input range (60‑600 VAC, 20 mA‑225 A).

A young woman on a transparent background using an RX Reference Standard with a WECO 4330X.

Features

Advanced Measurement Made Practical
  • Xytronic architecture with high‑speed A/D, hermetic references and advanced algorithms for class‑leading performance.
  • Accuracy classes: ±0.04% (RX‑10), ±0.02% (RX‑11), ±0.01% (RX‑15) including stability, uncertainty and system errors.
  • Measurement suite: voltage, current, phase angle, active/reactive/apparent power & energy, wideband/fundamental, harmonics/THD, vector VA — over 40 metrics concurrently.
  • Autoranging inputs: 60‑600 VAC and 20 mA‑225 A for maximum flexibility.
  • Familiar five‑button interface with built‑in comparator and legacy compatibility; Ethernet/SCPI control for automation.
  • Compact, rugged cube chassis suitable for field, shop, or lab use.
  • Backed by ISO/IEC 17025 accreditation for industry-leading measurement uncertainties and unmatched customer trust for over 40 years.

Model Comparison

RADIAN RX-10

The RX-10 provides ±0.04% (400 ppm) energy accuracy, making it a reliable single-phase reference standard for calibration, meter testing, and precision measurement applications. It delivers consistent performance across voltage, current, power, and energy measurements while supporting broad operating ranges suited for utility, laboratory, and production environments.

Voltage accuracy is 0.02% (200 ppm) and direct AC current accuracy is 0.028% (280 ppm) at TCAL. Power accuracy aligns with the energy class at 0.04% (400 ppm). Long-term drift is controlled through a stability specification of 16 ppm × √month, providing dependable performance over extended periods. For energy measurements, the temperature coefficient is 5 ppm/°C, supporting stable results under varying environmental conditions.

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: 16 ppm × √month

• Energy temperature coefficient: 5 ppm/°C

• Single-phase reference standard

RADIAN RX-10

The RX-11 delivers ±0.02% (200 ppm) energy accuracy, offering a reduced uncertainty class compared with the RX-10. Its performance supports customers requiring tighter traceability and greater control of uncertainty within single-phase test environments.

Voltage accuracy is 0.01% (100 ppm) and direct AC current accuracy is 0.014% (140 ppm) at TCAL. Long-term precision is supported through a stability specification of 8 ppm × √month, ensuring consistent results over time. For energy measurements, the temperature coefficient is 5 ppm/°C, maintaining reliable performance as ambient conditions vary.

Performance Highlights

• 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: 8 ppm × √month

• Energy temperature coefficient: 5 ppm/°C

• Single-phase reference standard

A close up image of the RADIAN RX-11 on a transparent background.

The RX-15 provides ±0.01% (100 ppm) energy accuracy, representing the highest accuracy class within the RX-10 series of single-phase reference standards. This accuracy level enables advanced metrology, high-precision calibration, and demanding production testing.

Voltage accuracy is 0.005% (50 ppm) and direct AC current accuracy is 0.007% (70 ppm) at TCAL. Long-term drift is minimized through a stability specification of 4 ppm × √month, enabling excellent long-term measurement stability. For energy measurements, the temperature coefficient is 5 ppm/°C, ensuring consistency across environmental variations.

Performance Highlights

• 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

• Single-phase reference standard

A close up picture of the RADIAN RX-15 on a transparent background.
RADIAN RX-10
A close up image of the RADIAN RX-11 on a transparent background.
A close up picture of the RADIAN RX-15 on a transparent background.
The RADIAN RX-10, RX-11, and RX-15 lined up in descending order over a partially transparent background.

Delivering Exceptional Accuracy, Precision and Stability

Accessories

The RR-IRDS 193060 is an infrared and meter disk sensor combo, field mount.

193060 RR-IRDS

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The 110165 RB-IR/s is a RR-IR Optical Pickup, for Bantam & RW-30X/RW-31X (Suction Cup) on a transparent background.

110168 RR-IR/s

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The RR-IR Optical Pickup (Magnet) on a transparent background.

110169 RR-IR/m

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The RR-KYZ Pulse Input Adapter with 4-pin plug (3 Wire and 2 Wire) on a transparent background.

100127 RR-KYZ

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The RR-LOI Cable Assembly on a transparent background.

190168 RR-LOI

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The RM-1H Optical Pickup for Infrared LED - BNC Connector on a transparent background.

100105 RM-1H

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The RM-1H/v Optical Pickup for Visible LED - BNC Connector

100120 RM-1H/v

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The RM_KYZ Pulse Input Adapter (3 wire) - BNC Connector on a transparent background.

100110 RM-KYZ

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The RM-OA Optical Adapter for Meter Communication Port on a transparent background.

100112 RM-OA

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The RADIAN RM-111 on a transparent background.

RADIAN RM-111 — Automated Comparator

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The RC-SR704 0.3%, 0.01 to 800A AC Current Probe @ 50Hz or 60Hz on a transparent background.

100129 RC-SR704

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The RC-MN106 0.2%, 0.2-150A, 0.5” Diameter Current Probe, 600V on a transparent background.

100130 RC-MN106

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The RC-CTA1 Current Transformer on a transparent background.

100142 RC-CTA1

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The RC-HV2000A High Current Probe to 138 KV, 5 to 2000A

100144 RC-HV2000A

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The RC-FLEX3000A 36" Flex Probe CT (5-3000 Amps)

100143 RC-FLEX3000A

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The RC-JM830A 1.0 to 2400A AC Current Probe

100132 RC-JM830A

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The RC-SR704 0.3%, 0.01 to 800A AC Current Probe @ 50Hz or 60Hz on a transparent background.

100149 RC-SR704A

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The RC-SR704B 0.05%, 0.5 to 800A AC Current Probe @ 50Hz or 60Hz

100148 RC-SR704B

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