Description
NI PXI-4071 Product Description
Detailed parameter table
| Parameter name | Parameter value |
| Product model | PXI-4071 |
| Manufacturer | NI |
| Product category | PXI Digital Multimeter (DMM) |
| Measurement Functions | DCV, ACV, DCI, ACI, 2-wire resistance, 4-wire resistance, diode test, continuity |
| DC Voltage Accuracy | ±0.0012 % of reading + ±0.0004 % of range |
| AC Voltage Bandwidth | 10 Hz to 3 MHz |
| Maximum Resolution | 22 bits |
| Measurement Rate | Up to 1000 readings/s (18 bits) |
| Input Resistance (DCV) | 10 GΩ |
| Current Measurement Ranges | 100 µA to 3 A |
| Resistance Measurement Ranges | 100 Ω to 100 MΩ |
| PXI Bus Compatibility | PXI, PXI Express (via adapter) |
| Form Factor | 3U PXI module |
| Calibration Interval | 1 year (recommended) |
| Operating Temperature | 0 °C to 55 °C |
| Weight | 15 oz (425 g) |
| Part Numbers | 778062-01 (Standard), 778062-02 (High-accuracy) |
| Connectivity | 2 BNC inputs, PXI trigger lines |
NI PXI-4071
Product introduction
The NI PXI-4071 is a high-performance PXI digital multimeter (DMM) designed by NI to deliver precise measurements in automated test systems. As part of NI’s modular instrumentation portfolio, this 3U PXI module integrates seamlessly into PXI and PXI Express chassis, making it ideal for high-throughput test environments.
The PXI-4071 offers a comprehensive set of measurement functions, including DC voltage (DCV), AC voltage (ACV), DC current (DCI), AC current (ACI), 2-wire and 4-wire resistance, diode test, and continuity checks. With 22-bit maximum resolution and exceptional DC voltage accuracy of ±0.0012% of reading + ±0.0004% of range, it excels in applications requiring precise measurements. Whether used in electronics manufacturing test, aerospace validation, or research laboratories, the PXI-4071 provides reliable performance as a core measurement device in automated systems.
Core advantages and technical highlights
High Measurement Accuracy: The NI PXI-4071 sets a benchmark for precision with its exceptional DC voltage accuracy specifications. This level of accuracy ensures reliable results in critical applications such as calibration systems, where even minor measurement errors can compromise entire test processes. Engineers can trust the PXI-4071 to deliver consistent results across multiple test points and over extended periods.
Fast Measurement Rates: Capable of up to 1000 readings per second at 18-bit resolution, the PXI-4071 balances speed and precision effectively. This performance is crucial in high-volume manufacturing test environments where throughput directly impacts production efficiency. The module’s ability to maintain accuracy while operating at high speeds reduces test time without sacrificing data quality.
Versatile Measurement Capabilities: With a full suite of measurement functions, the PXI-4071 eliminates the need for multiple instruments in test systems. Its wide range of current (100 µA to 3 A) and resistance (100 Ω to 100 MΩ) ranges allows it to handle diverse testing requirements, from low-power semiconductor measurements to higher-current component testing. This versatility simplifies system design and reduces overall instrumentation costs.
PXI Integration Benefits: As a 3U PXI module, the PXI-4071 leverages the PXI platform’s advantages, including high-speed data transfer over the PXI backplane and synchronization with other PXI modules via trigger lines. This integration capability is particularly valuable in multi-instrument test systems, where precise timing between measurements and other test events (such as signal generation or switching) is essential. The module can also operate in PXI Express chassis using adapters, providing future-proofing for evolving test systems.
Typical application scenarios
In electronics manufacturing test, the NI PXI-4071 serves as a core measurement device in automated test equipment (ATE) systems. It performs routine tests on printed circuit boards (PCBs), measuring voltage levels at critical nodes, checking resistor values, and verifying current draw of components. Its high measurement rate ensures that even complex PCBs with hundreds of test points can be validated quickly, supporting high-volume production lines.
In aerospace and defense testing, the PXI-4071 contributes to the validation of avionics systems and components. It measures power supply voltages, sensor outputs, and resistance of wiring harnesses in environmental test chambers, where temperature extremes (0 °C to 55 °C) are common. The module’s accuracy is vital here, as avionics systems require precise measurements to ensure compliance with strict safety standards.
In research laboratories, the PXI-4071 supports a variety of experimental setups. Physicists use it to measure small voltage changes in sensor arrays, while materials scientists rely on its resistance measurements to study conductive materials. Its integration with PXI-based data acquisition systems allows researchers to synchronize multimeter readings with other measurements, such as temperature or pressure, creating comprehensive datasets for analysis.
NI PXI-4071
Related model recommendations
NI PXIe-4081: This PXI Express DMM offers higher bandwidth and faster measurement rates than the PXI-4071. With 24-bit resolution and measurement rates up to 2000 readings/s, it’s an ideal upgrade for high-performance test systems requiring increased throughput.
NI USB-4065: A USB-based DMM that shares core measurement technology with the PXI-4071 but in a portable form factor. It’s suitable for benchtop applications or field testing where PXI chassis integration isn’t required.
NI PXI-4070: A lower-cost alternative in the same product family. It offers similar measurement functions but with slightly reduced accuracy specifications, making it suitable for cost-sensitive applications where high precision isn’t critical.
NI PXI-2593: A PXI switch module that pairs with the PXI-4071 to expand channel count. It allows the DMM to measure multiple test points sequentially, ideal for systems requiring measurements across dozens of signals.
NI PXIe-4140: A PXI Express source measure unit (SMU) that complements the PXI-4071 in semiconductor test applications. While the PXI-4071 measures voltages and currents, the PXIe-4140 can source and measure, making them a powerful combination for device characterization.
Installation, commissioning and maintenance instructions
Installation preparation: Before installing the NI PXI-4071, ensure the PXI or PXI Express chassis is powered off. Verify the chassis has an available 3U slot and that the slot’s backplane connector is clean and undamaged. Use anti-static handling procedures, including wearing an anti-static wrist strap, to prevent electrostatic damage to the module’s components. For PXI Express installations using an adapter, confirm the adapter is compatible with both the module and chassis.
Commissioning: Install NI-DMM driver software (version 15.0 or later) on the host controller before powering on the system. After inserting the PXI-4071 into the chassis, power on the system and launch the NI Measurement & Automation Explorer (MAX) to verify module detection. Perform a self-calibration using MAX to ensure optimal accuracy—this process typically takes 10 minutes and should be done in a stable temperature environment (23 °C ± 5 °C). Configure measurement parameters via software (LabVIEW, LabWindows/CVI, or programming APIs) and perform initial test measurements with known reference values to validate operation.
Maintenance suggestions: Perform regular verification using calibrated reference standards to ensure the PXI-4071 maintains specified accuracy. NI recommends annual calibration, but high-usage environments may require more frequent intervals. Inspect BNC connectors periodically for damage or corrosion, cleaning with isopropyl alcohol if necessary. Keep driver software updated to access performance improvements and new features. In case of measurement anomalies, check for loose connections, verify calibration status, and run diagnostic tests via MAX before suspecting hardware issues.
Service and guarantee commitment
NI stands behind the PXI-4071 with a comprehensive 2-year warranty covering manufacturing defects. During the warranty period, NI provides free repair or replacement of faulty modules. Calibration services are available through NI Service Centers, offering traceable calibration to international standards (ISO/IEC 17025) to maintain measurement integrity.
Technical support is accessible via phone, email, and online resources, with NI’s application engineers providing assistance with installation, configuration, and troubleshooting. The NI website offers extensive documentation, including user manuals, driver updates, and example code to facilitate system integration. This commitment to quality and support ensures users can maximize the performance of the PXI-4071 throughout its operational lifecycle, backed by NI’s decades of expertise in test and measurement solutions.
