The National Instruments NI-9225 is a high-performance C Series Voltage Input Module designed for the precise measurement of high-voltage signals. With a maximum input capacity of 300 Vrms, the NI-9225 is ideal for a variety of applications, including line-to-neutral measurements in 240 V power systems and line-to-line measurements in 110 V power networks. The module features three differential analog input channels, synchronized for accurate waveform estimation, making it particularly suitable for three-phase system analysis. It effectively captures critical power quality events such as sags, swells, transients, and harmonics. The NI-9225 supports a maximum sample rate of 50 kS/s per channel and offers a robust 24-bit analog input resolution, ensuring high-quality data acquisition. The device can be easily integrated with the NI 9239 to create a customizable power quality monitoring or metering solution. Additionally, the module is equipped with bank and channel-to-channel isolation and is designed to operate within a wide temperature range of -40 to 70 °C, with a storage temperature range of -40 to 85 °C. It weighs 5.0 oz and features a screw terminal front connector for easy wiring. The NI-9225 is available in two part numbers: 780159-01 (non-conformal coated) and 780159-02 (conformal coated). Users benefit from a user-friendly interface with the NI-DAQmx driver software and can explore over 100 additional C Series modules for versatile sensor connectivity. The module comes with a three-year warranty and relevant manuals are available for download. For pricing information, please contact a sales representative.