NI PXIE-4082

Description

Detailed parameter table

NI PXIE-4082

Product introduction

The NI PXIe-4082 is a precision PXI Express Digital Multimeter (DMM) module developed by National Instruments (NI), engineered for high-accuracy electrical measurement in modular test and automation systems. As a flagship model in NI’s PXIe DMM lineup, the NI PXIe-4082 combines 22-bit resolution, multi-function measurement capabilities (DCV, ACV, current, resistance, frequency), and PXIe’s high-speed connectivity to address critical measurement needs in R&D, quality control, and manufacturing.

Unlike standalone benchtop DMMs, the NI PXIe-4082 integrates seamlessly into PXIe chassis, enabling synchronization with other PXIe modules (e.g., DAQ cards, signal generators) via the PXIe trigger bus. This makes the NI PXIe-4082 ideal for automated test systems where multiple measurements (e.g., voltage across a component + current draw) must be coordinated. Its compact 3U form factor also saves chassis space compared to traditional benchtop instruments, while its support for remote control via LabVIEW or NI-DMM driver simplifies integration into automated workflows. Whether measuring microvolt-level signals in semiconductor chips or validating power supply stability in aerospace components, the NI PXIe-4082 delivers reliable, repeatable results.

Core advantages and technical highlights

22-Bit Resolution for Micro-Level Precision: The NI PXIe-4082’s 22-bit resolution and industry-leading accuracy (e.g., ±0.0012% DCV accuracy) enable detection of ultra-small signal variations—critical for applications like semiconductor component testing. For example, when measuring the voltage drop across a 100 Ω current-sense resistor in a power management IC, the NI PXIe-4082 can resolve 100 nV changes, translating to 1 nA current resolution. This level of precision surpasses entry-level DMMs (16–18-bit resolution) and ensures compliance with strict industry standards (e.g., ISO 9001 for manufacturing quality).

Multi-Function Flexibility Reduces Instrument Count: With support for DCV, ACV, DC/AC current, resistance, frequency, and diode testing, the NI PXIe-4082 replaces multiple single-function instruments in a test system. A consumer electronics manufacturer, for instance, uses the NI PXIe-4082 to test smartphone chargers: it measures DC output voltage (to verify 5 V/9 V compliance), AC ripple (to check noise levels), and input current (to ensure energy efficiency). This consolidation cuts equipment costs by 40% and simplifies system calibration, as only one module needs periodic verification.

PXIe Synchronization for Coordinated Measurements: The NI PXIe-4082 leverages the PXIe trigger bus to synchronize with other PXIe modules (e.g., NI PXIe-6255 DAQ cards, NI PXI-5412 AWGs) with sub-100 ns latency. In an aerospace avionics test rig, for example, the NI PXIe-4082 measures the voltage of a sensor power rail while a NI PXIe-6255 captures the sensor’s analog output—both triggered simultaneously by a NI PXIe-6674T timing module. This alignment ensures that voltage fluctuations are correlated with sensor behavior, a key requirement for validating avionics reliability under dynamic conditions.

Efficient Data Transfer via PXIe and DMA: The NI PXIe-4082 uses PXIe x1 connectivity and DMA (Direct Memory Access) to transfer measurement data to the host controller at up to 100 S/s continuously. This eliminates CPU bottlenecks, even when logging thousands of measurements for long-duration tests (e.g., monitoring a battery’s voltage decay over 24 hours). The module’s buffered burst mode (10 kS/s) also enables high-speed sampling for transient events, such as voltage spikes in power supplies—something standalone DMMs with USB connectivity often struggle to handle.

Typical application scenarios

In semiconductor manufacturing, the NI PXIe-4082 is used to validate the electrical performance of microchips. A wafer test facility integrates the NI PXIe-4082 into a NI PXIe-1085 chassis, where it measures the DC voltage drop across 16 IC pins (using a multiplexer) to detect faulty chips with internal short circuits. The NI PXIe-4082’s 22-bit resolution identifies voltage deviations as small as 50 µV—well below the 100 µV threshold for rejectable parts—while its PXIe synchronization with a NI PXIe-8861 controller ensures test results are logged in real time. This setup tests 50 wafers per hour, meeting high-volume production demands.

In industrial power supply testing, the NI PXIe-4082 verifies compliance with safety and efficiency standards. A power supply manufacturer uses the module to measure three key parameters: DC output voltage (±0.001% accuracy to meet IEC 61000-4-2), AC input current (to calculate power factor), and insulation resistance (to ensure 100 MΩ minimum for safety). The NI PXIe-4082’s CAT III 600 V overvoltage protection prevents damage from accidental high-voltage connections, while its remote control via LabVIEW automates test sequences—reducing manual testing time by 60% compared to benchtop DMMs.

In aerospace R&D, the NI PXIe-4082 monitors sensor power rails in prototype aircraft systems. Engineers use the module to measure the DC voltage of a 5 V sensor bus during vibration testing, logging data at 10 S/s to detect voltage droops caused by loose connections. The NI PXIe-4082’s compatibility with NI Linux Real-Time (on a NI cRIO-9040) enables deployment in harsh test environments, while its synchronization with a NI PXIe-5105 digitizer correlates voltage fluctuations with vibration levels—providing critical insights for system reliability.

NI PXIE-4082

Related model recommendations

NI PXIe-4081: An entry-level PXIe DMM and cost alternative to the NI PXIe-4082, offering 18-bit resolution and ±0.005% DCV accuracy. It is ideal for basic measurement tasks (e.g., academic labs) where the NI PXIe-4082’s precision is unnecessary.

NI PXIe-4083: A high-end PXIe DMM and upgrade of the NI PXIe-4082, featuring 24-bit resolution and ±0.0008% DCV accuracy. It replaces the NI PXIe-4082 for ultra-precision applications (e.g., metrology labs, calibration services).

NI PXIe-1085: An 18-slot PXIe chassis compatible with the NI PXIe-4082. It provides power, cooling, and PXIe trigger connectivity for the module and other PXIe instruments (e.g., NI PXIe-6255), supporting large-scale test systems.

NI PXIe-8861: A PXIe system controller that pairs with the NI PXIe-4082. It processes measurement data, runs automated test sequences (via NI TestStand), and streams results to a database—critical for high-throughput testing.

NI PXIe-2527: A PXIe multiplexer module that expands the NI PXIe-4082’s measurement channels. It enables the NI PXIe-4082 to measure up to 32 voltage/current signals sequentially, ideal for multi-channel test setups (e.g., wafer testing).

NI 9208: A C Series analog input module that complements the NI PXIe-4082. The NI PXIe-4082 handles high-accuracy single-point measurements, while the NI 9208 captures multi-channel analog data—suitable for mixed-signal systems.

NI-DMM Driver: The core software driver for the NI PXIe-4082, enabling configuration of measurement parameters (range, resolution, sampling rate) and data transfer. It integrates with LabVIEW and Python, simplifying custom test application development.

NI TestStand 2024: Automated test management software that works with the NI PXIe-4082. It lets users create step-by-step test sequences (e.g., power supply validation) and generate compliance reports, reducing manual effort.

Installation, commissioning and maintenance instructions

Installation preparation: Before installing the NI PXIe-4082, power off the PXIe chassis (e.g., NI PXIe-1085) and wear an ESD wristband (±15 kV) to protect the module’s precision circuitry. Verify the chassis has an empty PXIe slot (compatible with x1 lane modules) and gather tools: a Phillips screwdriver (for securing the module) and shielded twisted-pair cables (for measurement inputs). Align the NI PXIe-4082 with the chassis guide rails, insert firmly until the PXIe connector seats fully, then secure with the chassis front-panel screw. Connect the included terminal block to the module’s 20-pin connector, and wire measurement inputs (e.g., voltage probes, current shunts) to the terminal block—ensuring correct polarity to avoid overvoltage damage.

Commissioning and maintenance: Power on the chassis and host PC, then install the latest NI-DMM driver and LabVIEW. Use NI Measurement & Automation Explorer (MAX) to detect the NI PXIe-4082 and run a “DMM Self-Test” to verify basic functionality (e.g., measuring a known 5 V reference). Calibrate the NI PXIe-4082 annually using a NIST-traceable calibrator (e.g., NI 9172) to maintain ±0.0012% DCV accuracy. Inspect the terminal block and PXIe connector quarterly: clean contacts with isopropyl alcohol (99.9% purity) and a lint-free cloth to remove dust or oxidation. If the NI PXIe-4082 reports inaccurate readings, update its firmware via MAX or check for loose wiring—avoid exposing the module to temperatures above 55 °C or humidity above 90% to prevent component degradation.

Service and guarantee commitment

National Instruments (NI) provides a 2-year standard warranty for the NI PXIe-4082, covering defects in materials and workmanship—including the precision ADC, trigger circuits, and PXIe interface. For extended protection, the NI ServicePlus Premium Plan extends coverage to 5 years, including annual factory calibration (traceable to NIST) for all measurement functions, priority technical support (2-hour response time for aerospace/semiconductor customers), and expedited repairs (turnaround time < 3 business days).

NI’s global technical team includes DMM specialists, offering 24/7 support for the NI PXIe-4082—assisting with calibration, measurement optimization, and troubleshooting (e.g., resolving noise in low-voltage readings). Customers gain free access to resources: application notes on semiconductor testing with the NI PXIe-4082, LabVIEW example code for automated DMM workflows, and a user community for sharing best practices. For out-of-warranty repairs, NI’s Precision DMM Restore Service replaces aged components (e.g., precision resistors, ADC) and verifies all accuracy specifications—restoring the NI PXIe-4082 to factory performance. This commitment reflects NI’s confidence in the module’s durability and dedication to supporting users’ critical measurement needs.