The National Instruments NI-9227 is a C Series Current Input Module designed for high-precision measurement in data acquisition and control applications. Featuring four differential analog input channels, this module provides a maximum sampling rate of 50 kS/s per channel and operates with a 24-bit resolution. The NI-9227 integrates built-in anti-aliasing filters to enhance measurement accuracy and can be utilized alongside C Series Voltage Input Modules for comprehensive power and energy consumption assessments in various testing scenarios, including equipment and electronic devices. It offers versatility in current measurement, enabling users to analyze parameters such as noise, frequency, and harmonics.

The module is equipped with four separable screw-terminal connectors for easy integration, allowing for simultaneous measurements across all channels. Each channel utilizes a 24-bit Delta-Sigma ADC, ensuring that signals are correctly conditioned and sampled, providing an independent signal path for each channel. The NI-9227 operates effectively with ground-referenced and floating current sources, and users should adhere to specified voltage levels for safe operation. Power consumption is rated at up to 730 mW while active and drops to a mere 50 μW in sleep mode. With a weight of 5.1 oz and a wide operating temperature range of -40 to 70 °C, the NI-9227 is both robust and reliable for industrial applications. It is compatible with NI-DAQmx driver software, facilitating integration with various development environments, including LabVIEW and Visual Basic .NET. The module is available in two variants: part number 781099-01 is non-conformal coated, while 781099-02 features conformal coating for added protection. Users can access the user manual and maintenance documentation online. For pricing information, please contact a National Instruments sales representative.