Description
The NI NI-9220 refers to the National Instruments C Series Voltage Input Module. It’s an industrial-grade data acquisition module designed for measuring voltage signals in various test, monitoring, and control applications. Here’s a breakdown of its key features and how to find more information about it:
Function:
- The NI-9220 measures multiple differential analog voltage inputs simultaneously. “Differential” means it measures the voltage difference between two designated points in a circuit, helping to eliminate common-mode noise for improved accuracy.
- It can handle a wide range of voltage inputs, typically from -10 V to 10 V or 0 V to 10 V depending on the model variant.
- The NI-9220 is well-suited for applications such as:
- Data acquisition systems for monitoring voltage levels in industrial processes.
- Automated test equipment (ATE) for testing electronic devices.
- Machine control systems for monitoring and adjusting voltages in machinery.
Features:
- High-Speed Sampling: The NI-9220 offers high-speed analog-to-digital conversion (ADC), typically with sampling rates of 100 kS/s (kiloSamples per second) or higher. This allows it to capture fast-changing voltage signals with good resolution.
- Multiple Channels: Depending on the model variant, the NI-9220 can have 16 or 32 differential voltage input channels, enabling you to measure multiple voltage signals simultaneously.
- Isolation: The NI-9220 provides isolation between the input channels and the module’s ground, typically rated for CAT II or CAT I safety standards. This helps to protect the module and other equipment from ground loops and transient voltage spikes.
- Configurable Terminals: The NI-9220 might offer different terminal connector options (such as spring terminals or D-SUB connectors) for easy connection to various voltage sources.
