Brief Product Description

NI PXI-4071 is a high-performance 3U PXI 7½-digit FlexDMM module integrating a precision digital multimeter and isolated high-speed digitizer. Designed for PXI modular test platforms, it delivers ultra-high resolution measurements for voltage, current, resistance, frequency and diode testing, supporting up to 1000 VDC and 3A input. With built-in isolated digitizer function, it can capture waveform signals at sampling rates up to 1.8 MS/s for time and frequency domain analysis. Compatible with LabVIEW and NI-DMM instrument drivers, this module provides flexible programming capability for automated test systems. Featuring low-noise front-end circuitry and robust overvoltage protection, it ensures stable and repeatable precision measurement in laboratory and production environments. Fully tested surplus and refurbished NI PXI-4071 modules are available for legacy PXI test bench maintenance, measurement module replacement and automated test system retrofits.

Core Product Functions

• 7½-digit high precision DMM measurement for DC/AC voltage, DC/AC current and resistance
• Wide measurement range: ±10 nV to 1000 VDC, ±1 pA to 3 A, 10 µΩ to 5 GΩ resistance
• Isolated digitizer mode for waveform acquisition with maximum sampling rate of 1.8 MS/s
• Frequency, period and diode measurement functions for comprehensive electronic component testing
• Built-in overvoltage, overcurrent and transient surge protection to safeguard measurement circuitry
• IVI-compliant NI-DMM driver support for seamless integration with LabVIEW and test software
• High input impedance and low-noise design to minimize measurement error for weak signals
• Standard PXI 3U form factor for easy installation into PXI chassis and mixed-signal test systems

• Supports 2-wire and 4-wire resistance measurement to eliminate lead resistance errors

Application Scenarios

• Automated test systems (ATS) for semiconductor, power IC and electronic component production testing
• R&D laboratory precision measurement, signal capture and electronic circuit characterization
• Instrument calibration bench and reference measurement applications for metrology labs
• Aerospace, automotive electronics and medical device automated validation test platforms
• Mixed-signal PXI test systems combined with switches, signal sources and digitizer modules
• Legacy NI PXI test rack DMM module replacement, maintenance and test system retrofits

FAQ (Frequently Asked Questions)

• Q: Inaccurate readings or unstable measurement after installing PXI-4071?
  A: Recalibrate the module, check test wiring and shielding, verify NI-DMM driver version compatibility, confirm proper PXI chassis cooling and eliminate external noise interference.
• Q: Does NI PXI-4071 support hot-swap replacement in PXI chassis?
  A: Hot swap is not supported. Shut down the PXI chassis power before installing or removing the module to avoid hardware damage.
• Q: What software drivers work with PXI-4071?
  A: It uses NI-DMM instrument driver, compatible with LabVIEW, LabWindows/CVI and other IVI-based test software.
• Q: What is the maximum voltage rating of PXI-4071?
  A: It supports up to 1000 VDC and 700 VAC for CAT I measurement applications.
• Q: Is NI PXI-4071 available for new test system projects?
  A: This legacy PXI FlexDMM module is end-of-life for new installations. Only fully tested surplus and refurbished units are supplied for existing test bench maintenance and retrofits.