Multimeter offers dc reading rates of 7 S/s at 7½ digits.

Press Release Summary:

Featuring 7½-digit DMM and 1.8 MS/s isolated digitizer, PXI-4071 FlexDMM uses 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. Multifunction device measures voltage from ±10 nV to ±1,000 V and resistance from 10 microohms to 5 gigaohms. Along with max dc reading rate of 10 kS/s at 4½ digits, product features built-in isolation and 10-23 bit resolution.

Original Press Release:

National Instruments Releases Industry's Most Accurate PXI Multimeter

NI 7½-Digit FlexDMM Measures from Picoamps to Kilovolts

NEWS RELEASE - March 1, 2005 - Engineers now can accurately measure from picoamps to kilovolts with the new National Instruments PXI-4071 FlexDMM - a multifunction device that features a 7½-digit (26 bits) digital multimeter and an 1.8 MS/s isolated digitizer. The NI PXI-4071 FlexDMM 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. This capability gives engineers the flexibility, resolution, functionality and isolation required for challenging applications such as fuel cell testing, leakage measurements, IV curve tracing and data converter linearity testing.

The FlexDMM is the most accurate DMM available for PXI with DC reading rates of 7 S/s at 7½ digits. For higher throughput needs, the FlexDMM offers a maximum DC reading rate of 10 kS/s at 4½ digits, five times faster than traditional GPIB-controlled DMMs. In isolated digitizer mode, the FlexDMM 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 voltage such as fuel cell stack testing. By changing the digitizer sampling rate, engineers can vary the resolution of the digitizer from 10 to 23 bits. Engineers can analyze 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 with the FlexDMM in isolated digitizer 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. The NI PXI-4071 FlexDMM includes NI-DMM driver software for NI LabVIEW and LabWindows/CVI, and Microsoft Visual Studio .NET.

About NI Modular Instruments

NI offers essential technologies for test, which combine high-performance hardware, flexible software and innovative timing and synchronization technology for test and design applications. NI modular instruments offer accurate, high-throughput measurements from DC to 2.7 GHz. The product family includes:

o High-resolution digitizers (up to 24 bits, up to 200 MS/s)

o Signal generators (up to 16 bits, 200 MS/s)

o Digital waveform generator/analyzers (up to 400 Mb/s)

o Digital multimeters (up to 7½ digits)

o RF vector signal generators and analyzers (up to 2.7 GHz)

o Dynamic signal analyzers (up to 24 bits, 204.8 kS/s)

o Switching (multiplexers, matrices and general purpose)

About National Instruments

National Instruments ( is a technology pioneer and leader in virtual instrumentation - a revolutionary concept that has changed the way engineers and scientists in industry, government and academia approach measurement and automation. Leveraging the PC and its related technologies, virtual instrumentation increases productivity and lowers costs through easy-to-integrate software, such as the NI LabVIEW graphical development environment, and modular hardware, such as PXI modules for data acquisition, instrument control and machine vision. Headquartered in Austin, Texas, NI has more than 3,400 employees and direct operations in approximately 40 countries. In 2004, the company sold products to more than 25,000 companies in 90 countries. For past six years, FORTUNE magazine named NI one of the 100 best companies to work for in America.

Pricing and Contact Information

NI PXI-4071 FlexDMM

Priced from $2,495


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