National Instruments NI-9244

The National Instruments NI-9244 (Part Number: 783106-01) is a high-performance C Series Voltage Input Module designed specifically for industrial applications requiring high-voltage measurements. This module supports a diverse range of uses, including phasor measurements, power metering, power quality monitoring, and industrial machinery testing, by offering a single-ended analog input with a robust measurement range. The NI-9244 enhances measurement accuracy through transient and harmonic analysis enabled by high-speed simultaneous sampling from its four analog input channels.

Equipped with a 24-bit Delta-Sigma ADC and an analog prefiltering feature, the NI-9244 achieves a scaling coefficient of 118,911 nV/LSB for precise voltage measurements. The module accommodates both single-phase and three-phase measurement configurations (WYE and delta), ensuring adaptability for various industrial setups. Compliance with rigorous standards, including IEC 61010‑1, C37.90, and IEC 61000‑4‑30 Class S, further attests to its reliability and precision in demanding environments.

The NI-9244 supports a wide range of sampling rates from 390.625 S/s to 51.2 kS/s using an external master timebase, and from 1.613 kS/s to 50 kS/s with an internal timebase, providing flexibility to meet specific application requirements. Its impressive specifications also feature remarkable crosstalk suppression, Common Mode Rejection Ratio (CMRR), Spurious-Free Dynamic Range (SFDR), and Total Harmonic Distortion (THD), ensuring dependable measurements even in electrically noisy settings.

Designed for robustness, the NI-9244 operates effectively in temperatures ranging from -40 °C to 70 °C and can endure operational shocks of up to 30 g and vibrations of up to 5 g RMS. The module facilitates easy integration into industrial systems through its screw-terminal wiring, accommodating wire gauges from 0.2 mm² to 3.0 mm². Weighing only 150 g, the compact design simplifies both installation and maintenance. The NI-9244 is backed by a three-year warranty, and user and maintenance manuals are available for download. For pricing details, please contact a sales representative.