NI PXIe-4082 – 6.5‑Digit DMM & LCR Meter for PXI Express Precision Test

The NI PXIe-4082 packs a full-featured 6.5‑digit digital multimeter and an LCR meter into a single 3U PXI Express slot. From my experience, it’s the go-to choice when you want bench-grade measurements inside an automated PXI system without burning extra slots or budget on separate instruments. You get classic DMM functions (DC/AC V and I, 2‑wire/4‑wire resistance, diode, frequency) plus L/C/R measurements with selectable test conditions—ideal for component characterization, inline validation, and mixed-signal ATE where footprint matters.

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• Warranty period: 365 days
• Delivery time: 1 week for in-stock; no more than one month at the latest
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Key Features

• DMM + LCR in one slot – Consolidates measurement capability, which typically reduces test time and cabling complexity.
• 6.5‑digit resolution – Stable low-noise readings for precision DC, AC, and resistance measurements.
• LCR measurement capability – Characterize capacitors and inductors (and derived parameters like D/Q/ESR) with selectable test conditions; in many cases, this replaces a standalone benchtop LCR meter.
• 2‑wire and 4‑wire resistance – 4‑wire mode minimizes lead effects for low‑ohms work, typically crucial in sensor and shunt evaluations.
• PXI Express integration – Tight timing/synchronization over the PXI Express backplane trigger lines for multi‑instrument systems.
• Software flexibility – Supported by NI‑DMM driver; works with LabVIEW, LabWindows/CVI, C/C++, and .NET, which makes scripting test steps straightforward.
• Self-calibration and system calibration support – Helps maintain accuracy across temperature changes; a practical advantage in production labs.
• Space-efficient 3U design – One thing I appreciate is how it frees up chassis slots while still covering a wide swath of measurements.

You might notice that teams standardizing around PXIe-4082 often do so to simplify handler wiring and reduce instrument switching. A recent customer in automotive electronics replaced a benchtop LCR and a rack DMM with the PXIe-4082; they reported faster test execution and fewer fixture re-terminations across variants.

Technical Specifications

Related or Supporting Products

• NI PXIe-4081 – 7.5‑digit DMM (higher resolution, no LCR mode); best when you need ultra‑fine DC accuracy.
• NI PXIe-4080 – 6.5‑digit DMM (no LCR); a streamlined choice for general DMM work.
• NI PXI-4072 – Legacy 6.5‑digit DMM + LCR (PXI, not PXI Express); PXIe-4082 is the modern path in newer PXIe systems.
• NI PXIe-1073 / PXIe-1082 Chassis – Common 3U PXIe chassis options for small to large systems.
• NI PXIe-8880 Controller – High-performance embedded controller for real-time or Windows-based test platforms.

Installation & Maintenance

• Chassis & environment – Install in a 3U PXI Express chassis with unobstructed airflow. Maintain ambient 0–55 °C and keep intake/exhaust clear.
• Wiring & shielding – Use low-thermal EMF leads for microvolt work and twisted/shielded leads for low‑ohms. For 4‑wire resistance, route sense leads separately to avoid coupling.
• Warm‑up – Allow a typical 30‑minute warm‑up for best accuracy before final measurements.
• Self‑cal & external cal – Run self‑cal after large temperature changes. Plan external calibration approximately every 2 years, or sooner for accredited production lines.
• LCR tips – Keep lead length short, use proper fixtures, and select appropriate test frequency to avoid parasitics dominating high‑Q parts.
• Software/firmware – Keep NI‑DMM driver and firmware current via NI Package Manager to benefit from fixes and performance updates.
• Safety – Observe input terminal ratings. De‑energize circuits before re-terminating; verify the selected function and range to prevent overload.

Quality & Certifications

• Conforms to PXI Express specifications; CE marked; RoHS compliant; WEEE applicable. Manufacturer quality system typically ISO 9001 certified.
• Factory calibration supplied; traceable calibration services available on request.
• Our warranty: 365 days. Advance replacements can be arranged in most cases, subject to stock.

If you’re weighing options, the PXIe‑4082 seems to be the sweet spot when you need LCR without sacrificing core DMM performance. It integrates smoothly with mixed-signal PXIe racks, and in many cases shortens test development because you only need one driver and one instrument handle for two roles.