User ManualTable of ContentsSC-2040 User Manual1Important Information3Warranty3Copyright3Trademarks3Warning4Contents5About This Manual8Organization of This Manual8Conventions Used in This Manual9The National Instruments Documentation Set9Related Documentation10Customer Communication10Chapter 1 Introduction11About the SC-204011What You Need to Get Started11Software Programming Choices12LabVIEW and LabWindows Application Software12NI-DAQ Driver Software12Register-Level Programming14Optional Equipment14Unpacking14Chapter 2 Configuration and Installation15Board Configuration15Supplementary Configuration Information20Power Supply Selection20Shield Selection20DAQ Board Ground Isolation Selection20Gain Selection20Input Mode Selection21Installation22Power-on Sequence22Chapter 3 Signal Connections23I/O Connector Pin Description23Signal Connection Description26Analog Signal Inputs29DC-Coupled Inputs29AC-Coupled Signals30Analog Input Ranges32Digital Signal Inputs33Monitoring Signal Outputs33Other Connection Considerations33Chapter 4 Theory of Operation34Functional Overview34Analog Circuitry36Input Protection36Amplification36Track-and-Hold (T/H) Circuitry36Triggering from the DAQ Board37External Triggering38Output Connection39Power Supply39Chapter 5 Calibration Procedures40Software Calibration40Offset Adjustment40Gain Adjustment41Linearity Adjustment41Hardware Calibration41Appendix A Specifications44Analog Input44Input Characteristics44Transfer Characteristics44Amplifier Characteristics45Dynamic Characteristics45S/H Characteristics46Stability46Power Requirement46Physical46Environment46Appendix B Customer Communication47Glossary51Index53Figures7Figure 1-1. The Relationship between the Programming Environment,13Figure 2-1. SC-2040 Parts Locator Diagram16Figure 3-1. SC-2040 I/O Connectors J11 and J1224Figure 3-2. SC-2040 Signal Routing28Figure 3-3. Ground-Referenced Signal Connection29Figure 3-4. Floating Signal Connection30Figure 3-5. Ground-Referenced AC-Coupled Signal Connection31Figure 3-6. Ground-Offset AC-Coupled Signal Connection31Figure 3-7. Floating AC-Coupled Signal Connection32Figure 4-1. SC-2040 Block Diagram35Figure 4-2. T/H Amplifier Hold Settling Time and Track Acquisition Time37Figure 4-3. MIO-16E Controlled Triggering38Figure 4-4. External Triggering39Tables7Table 2-1. Power Supply Selection17Table 2-2. Shield Selection18Table 2-3. DAQ Board Ground Isolation Selection18Table 2-4. Channel Gain Selection19Table 2-5. Channel Input Mode19Table 2-6. Gain Switches for Each Channel20Table 2-7. Switch Settings for Gain Selection21Table 2-8. Input Mode Selection Jumpers21Table 3-1. Pin Assignments for Connectors J11 and J1225Table 3-2. Input Connectors Signal Summary26Table 3-3. Output Connectors (J11 and J12) Signal Summary26Table 5-1. Calibration Component Identification42Size: 210 KBPages: 56Language: EnglishOpen manual