Typical Accuracy = +/- 0.01%
Worst Case = +/- 0.04%
OVERVIEW
PRODUCT HIGHLIGHTS: The Radian RD-20 Single-phase Electricity Reference Standard is one of the most versatile reference instruments ever. The RD-20 has a typical accuracy of 0.01% for all measurement functions across its entire operating range, with a maximum worst case accuracy of 0.04%. This worst case accuracy specification includes the variables of stability, power factor, traceability uncertainty and test system errors.
The RD-20 utilizes Radian's new Dytronic measurement technology consisting of a Radian designed Integrating Analog to Digital Signal Converter.Unlike off-the-shelf A/D Converters used in other instruments, Radian¡¯s A/D Converter is specifically designed and optimized for power and energy measurement. This unique design makes the RD-20 absolutely unsurpassed in its ability to accurately measure ¡°real world¡± waveforms. The RD-20¡¯s A/D Converter is combined with Radian¡¯s renowned electronically compensated voltage and current input transformers and a hermetically sealed reference set to provide the highest degree of accuracy, stability and versatility offered in a portable single-phase standard.
MEASUREMENTS:The RD-20 is a four quadrant single-phase, simultaneous measuring instrument that registers both forward and reverse energy flow and provides voltage, current, power and energy (Active, Reactive, Apparent) information. The Harmonic Analysis option makes available the analysis of customer load though the 50th harmonic order while the Built-in Comparator option provides for the automatic calculation of test results for the meters and standards being tested.
METER AND STANDARD TESTING: The compact light weight design of the RD-20 makes it an ideal reference standard for field testing applications. The RD-20 may be used with a controlled current source to accurately test revenue meters. In field applications the RD-20 can perform a single-phase meter accuracy test using existing service load. Pickups to sense meter disk rotation or calibration pulses of infrared, visible light, or KYZ signal plug directly into the RD-20. The RD-20 may be utilized to test reference standards of lesser accuracy and is also an ideal standard to be intergraded within a meter test bench where lesser accuracy is acceptable.
|
