The new Megger® DCM2000P Power Clampmeter combines the functionality of power meter, oscilloscope, harmonics meter and data logger in one easy to use package. The design meets the requirements of BSEN 61010-1 600V Cat IV for supply side applications. A large backlit dot matrix LCD clearly displays waveforms, harmonics, chart trends and up to 5 parameters at a time. The DCM2000P can measure DC, AC, pulsed and mixed currents up to 2000 A, voltages up to 600 V, all power related parameters including energy consumption, frequency, crest factor, total harmonic distortion, distortion factor and ripple. It features auto-ranging and auto-zeroing and has a built-in 3-phase adapter for power measurements. This battery-operated precision power meter can transmit both stored and live measurements to a PC running PowerLog software for further analysis if required. The DCM2000P is ideally suited to measuring mains power quality and applications in the development, installation, maintenance and repair of equipment and devices used in power electronics and power engineering. It simplifies the compensation of reactive power, even for complex waveforms with high harmonic distortion.

The DCM 2000P utilises a Hall effect sensor for accurate measurements. The magnetic circuit comprises the two jaws and a gap which provides a concentration of the magnetic flux at the Hall generator. The overall geometry of the jaws and the gap has been designed such that the measured value is not affected by an off-centre position of the conductor. The magnetic characteristics of the material used in the jaw tolerate overload currents up to 10,000 A without causing any disturbing residual magnetism. A highly linear electric/magnetic conversion is performed by the magnetic circuit, and a subsequent, equally linear, magnetic/electric conversion by the Hall generator. A voltage is generated which is a true image of the measured current, no matter whether the current is DC, AC, pulsed, mixed or of a complex waveform. External magnetic fields have little or no effect on the accuracy of the DCM2000P.