National Instruments SCXI-1581 User Manual

Introduction to the SCXI-1581 Module

This document serves as the comprehensive user manual for the National Instruments SCXI-1581 module. The SCXI-1581 is designed to enhance data acquisition and signal conditioning systems by providing precise current excitation for various sensors.

Key Capabilities and Applications

The SCXI-1581 module features 32 channels, each capable of delivering a stable 100 µA current excitation. This fixed current source is ideal for applications requiring accurate excitation of resistive transducers, such as Resistance Temperature Detectors (RTDs) and thermistors. The module's design ensures high accuracy and stability, making it suitable for demanding test and measurement environments.

This manual provides essential information for users, including:

• Detailed specifications for the SCXI-1581 module.
• Guidance on signal connections and wiring configurations.
• Explanation of the module's theory of operation.
• Instructions for setup, configuration, and verification within an SCXI system.
• Information on software integration and common usage scenarios.

About National Instruments

National Instruments (NI) is a leading provider of platform-based systems that enable engineers and scientists to solve the world's greatest measurement and control challenges. The SCXI platform is part of NI's extensive offering for test, measurement, and control applications. For further support and product information, visit ni.com.