The NI PXIe-4081 is claimed to be the industry’s most accurate 7½-digit DMM, with an accuracy of 15ppm for DC voltage measurements up to two years after calibration.
A solid-state current shunt configuration offers eight DC current ranges from 1µA to 3A and six AC rms current ranges from 100µA to 3A. The DMM occupies a single 3U PXI slot and provides excellent channel density for high-channel-count systems, delivering 17 DMM channels in a single PXI chassis occupying 4U of rack space.
For high-throughput applications, the isolated digitiser mode can acquire DC-coupled waveforms in all voltage and current ranges with a 1.8MS/s maximum sample rate. By changing the digitiser sampling rate, engineers can vary the resolution of the digitiser from 10 to 23 bits for a combination of speed and accuracy.
Engineers can use an interactive soft front panel for basic measurements and debugging automated applications. The driver software includes a best-in-class programming interface that works with a variety of development environments, such as C, Microsoft .NET and LabVIEW. The driver also features help files, documentation and 28 ready-to-run example programs to assist in test code development.
