Watthour Standard

Composed of three wide-range standard power watt-hour meters, eliminating phase-to-phase disturbance and guaranteeing phase splitting and merging. -Comparative calibration supported by watt-hour meters and error counter. ...more

The Radian Research RM-10 Metronic Portable Watthour Standard is the number one selling standard in North America. The field proven RM-10 offers exceptional accuracy, stability and reliability. The RM-10 is totally autoranging on the potential input, current input and auxiliary power input. Totally autoranging inputs, a feature pioneered by Ra ...more

Composed of single-phase power source, wide-range standard power watt-hour meter and error counter. -Calibrating 3 to 48 electronic or inductive watt-hour meters (1.0 and below) at one time. ...more

The RD-20 Portable Single-phase Electricity Standard has a typical accuracy of 0.01% with a maximum worst case accuracy of 0.04% across its entire voltage and current operating range. This worst case accuracy specification includes the variables of stability, power factor, traceability uncertainty and test system errors. The RD-20 inherits man ...more

The RS-600 Syntron Automated Reference Test System provides automated testing of induction and electronic field and watthour standards. The RS-600 has a typical accuracy of 0.008% with a conservative maximum accuracy specification of 0.02% making it the second most accurate watthour reference in the world, second only to the Radian RS-703A. ...more

Composed of single-phase power source, wide-range standard power watt-hour meter and error counter. -Calibrating 3 to 48 electronic or inductive watt-hour meters (1.0 and below) simultaneously; -No exterior transformer and switching contacts are cut down for 30-40%, thus errors are reduced greatly. -Once constants of the calibrated meter are inpu ...more

The Radian Research RM-12 Metronic Portable Watthour Standard is a high accuracy portable standard. The RM-12 has the core Radian features introduced with the popular RM-10 Portable Standard while providing an increased capacity current input. The RM-12 provides one current input with a high capacity range of 0.2 to 100 Amperes. ...more

The RM-11 Metronic Primary Watthour Standard has typical accuracies in the 0.003% range and repeatabilities in the 0.001% range. The maximum worst case accuracy of the RM-11 is conservatively specified at 0.025% guaranteed for one year. This maximum accuracy applies to all operating points between 0.2 and 50 amperes, 60 to 600 volts AC and 0.5 ...more

The Radian Research RM-18 Portable Test System offers the accuracy and legitimacy of true ANSI C12 meter testing in a light, compact test kit that is both simple and safe to operate. The RM-18 incorporates a true Radian Research watthour standard as its measurement reference. The typical accuracy of the RM-18 is +/- 0.05% with a conservative ...more

The MA-10 watthour standards are totally autoranging on the potential input, current input and auxiliary power input. The three summing current inputs can be used to perform closed link testing. Models with VARhour and Qhour capabilities are available for testing multi-function solid state meters. ...more

The Knopp Portable Phantom Load Test Set, Type KFS-50, in combination with a watthour reference standard, is used for testing single-phase and polyphase watthour meters in the field. It will operate from one of four input voltages and provides output current up to 50 Amperes at Unity or 0.5 Power Factor. ...more

The Rotek Model MSB100 is a primary watt and watt-hour standard that performs at a new level of power and energy measurement accuracy. It provides reliable, accurate traceability to N.I.S.T. and other national standards worldwide. Versatile measurement ranges and unparalleled accuracy allow the MSB100 to be the single instrument necessary to calibr ...more