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Phone: +86 18059884790
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- Warehouse: Spot
- Warranty： 365 days
- Quality: Original module
- Condition： New
- Shipping method: Courier delivery
- Contact person: LI MING
- Contact number: +86 18059884790
- WeChat：18059884790
- E-mail: plc66@qq.com
NI PXIe‑4081 Product Description
The PXIe‑4081 (part‑number 783130‑01) is a 7½‑digit FlexDMM high‑precision isolated digital multimeter module developed by National Instruments(NI). Single‑slot 3U PXIe form‑factor, it integrates high‑resolution DMM and isolated high‑voltage digitizer in one hardware unit. DC voltage basic accuracy reaches 12 ppm, with built‑in stable reference source supporting 2‑year calibration cycle. It supports multi‑parameter precision measurement and waveform acquisition up to 1.8 MS/s sampling rate, widely deployed in automated test systems for semiconductor, aerospace‑electronics and power‑component validation test benches.
Product Features
- 7½‑digit resolution (26‑bit), dual‑mode operation: precision DMM mode + isolated digitizer waveform capture mode
- Measurement ranges: DC voltage ±10 nV ~ ±1000 V; DC/AC current ±1 pA ~ 3 A; resistance 10 µΩ ~ 5 GΩ; frequency, period and diode test available
- Isolated digitizer mode: max sample rate 1.8 MS/s, DC‑coupled waveform acquisition under high‑voltage input condition
- Front‑panel safety‑rated banana‑jack terminals; built‑in self‑calibration compensates temperature‑drift over full operating range 0‑55 °C
- High‑stable onboard voltage reference, guaranteed 12 ppm basic DC accuracy for two‑year calibration interval
- PXIe high‑speed bus interface, seamlessly interoperable with other PXIe instruments: switch matrix, oscilloscope, DAQ modules in same test chassis
- Programmable via LabVIEW, LabWindows/CVI, Python; supports multi‑channel synchronous automated measurement sequence execution
- 3U single‑slot cabinet installation, IP20 protection; high‑voltage safety compliance certification for industrial‑test environment
Application Scenarios
- Semiconductor component parameter‑characterization and wafer‑test automated measurement systems
- Aerospace‑electronics, military‑product precise electrical‑parameter validation test benches
- Power‑device, high‑voltage‑module R&D production‑end testing, static‑parameter & transient‑waveform capture
- Precision‑instrument calibration laboratory automatic‑calibration equipment building
- Automated‑test‑system upgrade‑retrofit projects replacing legacy PXI‑4070 / PXI‑4071 series DMM modules
- Research‑laboratory multi‑channel high‑accuracy voltage‑current‑resistance synchronous‑acquisition measurement platforms
Frequently Asked Questions
A1: PXIe‑4081 is 7½‑digit high‑accuracy version with max 1000 V input; PXIe‑4082 is 6½‑digit and integrates LCR measurement function, max voltage 300 V, cannot be directly interchanged.
A2: Cannot run simultaneously; switch manually between DMM measurement mode and isolated digitizer waveform‑acquisition mode by software configuration.
A3: Execute onboard self‑calibration function; check chassis internal cabinet temperature fluctuation; verify input‑terminal wiring contact tightness and avoid external thermal‑electromotive‑force interference.
A4: PXIe hardware supports mechanical hot‑swap, but cut‑off external high‑voltage input signals before module replacement to avoid instrument damage and personal‑safety risk.
A5: Anti‑static protection required during disassembly‑assembly. Strictly observe input voltage‑range limits, never exceed ±1000 V maximum rated input; store in dry low‑humidity environment.
