• NI Systems (India) Private Limited

PXI MULTIMETERS

National Instruments offers PXI Multimeters, NI PXI-4071 FlexDMM. It is very accurate. It measures from picoamps to kilovolts. It is a multifunction device that features a 71/2-digit (26 bits) digital multimeter and a 1.8 MS/ s isolated digitiser. It offers fast, accurate voltage measurements from ±10 nV to ±1000 V and resistance measurements from 10 microohms to 5 gigaohms. It also uses a solid-state current shunt configuration that offers 8 DC current ranges from 1 µA to 3 A and 6 AC rms current ranges from 100 µA to 3 A. It ensures flexibility, resolution, functionality and isolation required for challenging applications such as fuel cell testing, leakage measurements, IV curve tracing and data converter linearity testing. It is available with DC reading rates of 7 S/ s at 71/2 digits. It includes NI-DMM driver software for NI LabVIEW and LabWindows/ CVI, and Microsoft Visual Studio .NET. For higher throughput needs, it offers a maximum DC reading rate of 10 kS/ s at 41/2 digits, five times faster than traditional GPIB-controlled DMMs. In isolated digitiser mode, it can acquire DC-coupled waveforms in all voltage and current ranges with a 1.8 MS/ s maximum sample rate. With the built-in isolation, engineers can measure differential waveforms up to 500 V common-mode voltages such as fuel cell stack testing. By changing the digitiser sampling rate, engineers can vary the resolution of the digitiser from 10 to 23 bits. Engineers can analyse transients, fly-back signals or other aperiodic high-voltage AC waveforms in both the time and frequency domains using the NI LabVIEW graphical development environment in isolated digitiser mode. Engineers can quickly increase the channel count of their FlexDMM systems by integrating them with NI switch modules such as the NI PXI-2532 512-crosspoint high-density matrix. Engineers using the FlexDMM with NI switch modules and NI Switch Executive switch management software can measure thousands of channels with a single multimeter.