MeterTest RD-31 Three Phase Reference Standard

The RD-31 three phase reference standard is one of the most versatile reference instruments ever. The RD-31 has atypical accuracy of .01% @ PF=1 for all measurement functions across its entire operating range, with amaximum worst case accuracy of .02%. This worst case accuracy specification includes the variables of stability, power factor, traceability uncertainty and test system errors.

A unique design makes the RD-31 unsurpassed in its ability to accurately measure real world۝ waveforms. The RD-31 reference meter includes an exclusive analog to digital signal converter that is combined with Radian Research۪s renowned electronically compensated voltage and current input transformers and a hermetically sealed reference. This combination provides the highest degree of accuracy, stability and versatility offered in a portable three-phase standard.