National Instruments SCXI -1122 User Manual
Scxi -1122, User manual
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Table of contents
Document Outline
- SCXI-1122 User Manual
- Support
- Important Information
- Contents
- About This Manual
- Chapter 1 Introduction
- Chapter 2 Configuration and Installation
- Chapter 3 Signal Connections
- Chapter 4 Theory of Operation
- Chapter 5 Calibration
- Appendix A Specifications
- Appendix B Customer Communication
- Glossary
- Index
- Figures
- Figure 1-1. The Relationship between the Programming Environment, NI-DAQ, and Your Hardware
- Figure 2-1. SCXI-1122 Parts Locator Diagram
- Figure 3-1. SCXI-1122 Front Connector Pin Assignments
- Figure 3-2. Ground-Referenced Signal Connection with High Common-Mode Voltage
- Figure 3-3. Floating Signal Connection Referenced to Chassis Ground for Better SNR
- Figure 3-4. Floating AC-Coupled Signal Connection Referenced to Chassis Ground for Better SNR
- Figure 3-5. AC-Coupled Signal Connection with High Common-Mode Voltage
- Figure 3-6. Avoiding Relay Wear by Sampling and Averaging Rather Than Single-Sample Channel Scanning
- Figure 3-7. Connecting a Quarter-Bridge Strain Gauge to Channel 0
- Figure 3-8. SCXI-1122 Rear Signal Connector Pin Assignments
- Figure 4-1. SCXI-1122 Block Diagram
- Figure 4-2. Series Connection with Current Excitation
- Figure 4-3. Four-Wire Scan Connection with Multiplexed Current Excitation
- Tables
- Table 2-1. Digital Signal Connection Jumper Settings
- Table 2-2. Jumper W1 Settings
- Table 2-3. User-Defined Current Receiver Resistors
- Table 3-1. Maximum Load per Excitation Channel
- Table 3-2. SCXIbus to SCXI-1122 Rear Signal Connector to DAQ Board Pin Equivalences
- Table 4-1. Sense/Current Output Channel Associations
- Table 4-2. Pros and Cons of Two-Wire and Four-Wire Connections with Current Excited Transducers
- Table 5-1. Maximum Allowable Error Ranges