Product Description

The NI PXI-4071 is a high-performance 3U PXI-format FlexDMM module integrating a 7.5-digit precision digital multimeter and isolated waveform digitizer. It delivers ultra-high 26-bit resolution and comprehensive multi-parameter measurement capabilities, supporting high-voltage, micro-current and mega-ohm resistance detection. Widely applied in industrial test, aerospace and precision calibration scenarios, it serves as a core high-precision measurement unit for automated test systems.

Combining DMM steady-state measurement and high-speed digitizer acquisition functions, this module supports up to 1000 VDC / 700 VAC high-voltage measurement and 1.8 MS/s isolated waveform sampling. It features ultra-low noise circuit design, built-in automatic calibration and full-range signal conditioning. With standard PXI bus compatibility and industrial measurement stability, it ensures long-term accurate and repeatable data acquisition for high-precision test and verification systems.

Main Specifications

1. Full Model: PXI-4071; Product Type: 7.5-digit high-precision isolated FlexDMM and high-speed digitizer composite measurement module
2. Applicable System: Standard PXI chassis, NI LabVIEW test platform, industrial automated measurement and calibration systems
3. Core Function: Multi-parameter precision measurement, high-speed waveform acquisition, signal analysis and automated test sampling
4. Measurement Precision: 7.5 effective digits, 26-bit high-resolution ADC, ultra-fine signal identification capability
5. Voltage Range: ±1000 VDC / 700 VAC RMS, supporting industrial high-voltage signal detection
6. Current Range: ±1 pA to 3 A wide-range DC/AC current measurement with micro-current sensitivity
7. Resistance Range: 10 µΩ to 5 GΩ ultra-wide resistance measurement for high-impedance device testing
8. Digitizer Performance: 1.8 MS/s maximum isolated waveform sampling rate for dynamic signal capture
9. Calibration Feature: Built-in automatic self-calibration function to maintain long-term measurement accuracy
10. Operational Reliability: Low-noise circuit and isolated design, ensuring stable and repeatable test data output

Core Functions

1. Acts as the dual-function core of high-precision DMM and high-speed digitizer for PXI test systems.
2. Performs ultra-precise steady-state measurement of voltage, current and resistance parameters.
3. Captures dynamic waveform signals via high-speed isolated sampling for transient signal analysis.
4. Supports micro-current and high-resistance detection for precision component characteristic testing.
5. Adopts high-voltage isolation architecture to protect test system circuits and improve safety.
6. Integrates automatic calibration to eliminate long-term drift and ensure measurement consistency.
7. Realizes seamless docking with LabVIEW for customized automated test program development.
8. Provides ultra-low noise signal acquisition to enhance the accuracy of weak signal testing.
9. Combines static precision measurement and dynamic waveform acquisition to simplify test system configuration.
10. Guarantees high-repeatability and high-precision measurement for industrial and aerospace test scenarios.

Application Scenarios

1. Aerospace and defense equipment precision parameter calibration and performance testing projects
2. Industrial high-voltage equipment, power modules and power component test scenarios
3. Semiconductor and microelectronic component micro-current and high-resistance testing systems
4. Laboratory high-precision instrument verification and metrology calibration platforms
5. Automated industrial test bench multi-parameter synchronous measurement and data acquisition projects
6. Power system equipment transient waveform capture and steady-state parameter detection scenarios
7. Research and development precision measurement requiring ultra-high resolution and low-noise sampling
8. Old PXI test system precision upgrade and multi-function measurement capability expansion projects
9. Industrial quality inspection and product performance full-parameter automated test systems
10. High-standard scientific research and industrial measurement scenarios requiring stable repeatability