More options for power analyser

LEM has enhanced its Norma 4000 power analyser with a colour display and a memory option

No other analyser offers such high performance and accuracy in such a compact box, making it especially suitable for on-site measurement. The Norma 4000 measures current and voltage with high accuracy and calculates active, reactive and apparent power and other derived values. Its accuracy is independent of waveform, frequency and phase shift across a wide range.

Harmonics are calculated at up to half the sampling rate.

Voltages up to 1000V and currents up to 10A can be measured directly due to integrated voltage dividers and shunts.

It is also possible to connect external voltage dividers, as well as shunts or probes.

Measuring only 237 x 150 x 315mm, the Norma 4000 can easily be carried to the measurement site.

This allows parameters of electrical systems, such as heating, harmonics, disturbances and current consumption, to be measured on working systems in the field, and not just in the laboratory.

The new colour display makes it easier to look at every single phase in the representations of the current harmonics, voltage and power with FFT methods and chart representations.

All measured values and charts can also be saved in the device and can be transferred to a PC via an RS232 interface.

With the new memory option, the device has a memory space of 128Mbyte.

The instrument's accuracy of 0.1% and its bandwidth of DC to 3MHz make it particularly suitable for measurements on drive systems (with or without frequency convertor), power supply systems and lighting technology.