Description
NI PCI-6221 – Multifunction Data Acquisition (DAQ) Board
Product Overview
Technical Specifications
| Parameter | Details |
|---|---|
| Brand | NI |
| Model | PCI-6221 |
| Warranty | One Year |
| Condition | 100% New & Original |
| Form Factor | PCI |
| Analog Input | 16 single-ended channels, 8 differential channels; 16-bit resolution |
| Analog Output | 2 channels; 16-bit resolution |
| Digital I/O | 24 bidirectional channels (TTL-compatible) |
| Counters/Timers | 2 x 32-bit counters (80 MHz maximum source frequency) |
| Operating Temp | 0°C to 70°C |
| Storage Temp | -40°C to 85°C |
| Software Support | NI-DAQmx, LabVIEW, LabWindows/CVI, Visual Studio .NET |
| Bus Compatibility | PCI 2.2 |

NI PCI-6221
Main Features and Advantages
versatile I/O functionality: Equipped with analog input/output, digital I/O, and counters/timers, the board supports multiple tasks simultaneously, eliminating the need for additional hardware. This versatility simplifies system integration and reduces overall setup costs for industrial and laboratory users.
plug-and-play compatibility: Compliant with PCI 2.2 standards, the PCI-6221 offers true plug-and-play functionality, enabling quick installation in most PCI-based computers. It supports a wide range of operating systems, including Windows and Linux, ensuring compatibility with existing system setups.
robust design: Built to withstand industrial operating conditions, the board features ESD protection and stable performance across a wide temperature range. Its durable construction ensures long-term reliability in harsh or demanding environments, minimizing downtime and maintenance needs.
Application Areas
- Industrial Automation: Used in manufacturing plants to monitor and control production processes, such as temperature, pressure, and flow rate. The PCI-6221 captures real-time data from sensors and transmits signals to control systems, enabling precise adjustment of production parameters and ensuring consistent product quality.
- Laboratory Testing: Applied in research and development labs for signal analysis, component testing, and prototype validation. Its high precision and versatile I/O make it suitable for testing electronic components, sensors, and other devices, providing researchers with accurate and reliable data for analysis.
- Process Monitoring: Utilized in energy and chemical industries to monitor critical process variables, such as voltage, current, and chemical concentrations. The PCI-6221 ensures continuous data collection, helping operators detect anomalies early and prevent equipment failure or process disruptions.

NI PCI-6221
Related Products
- NI PCI-6220: A cost-effective alternative to the PCI-6221, offering similar functionality with slightly reduced analog input channels, suitable for applications with lower I/O requirements.
- NI PCI-6281: A high-precision upgrade of the PCI-6221, featuring 18-bit analog input resolution and advanced signal conditioning, ideal for applications requiring ultra-accurate measurements.
- NI PCI-6602: A dedicated timing and digital I/O module complementary to the PCI-6221, providing additional counters/timers and digital I/O lines for complex timing and control tasks.
- NI PCI-6280: A high-performance multifunction DAQ board, offering enhanced analog output update rates and expanded signal 调理 options, suitable for demanding industrial and laboratory applications.
NI GPIB-140A | PCI-4462 | PCI-5114
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