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National Instruments SCB-68A User Manual

National Instruments SCB-68A
91 pages
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DAQ
NI SCB-68A User Manual
68-Pin Shielded Connector Block
NI SCB-68A User Manual
ni.com/manuals
DeutschFrançais
August 2012
375865A-01

Table of Contents

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National Instruments SCB-68A Specifications

General IconGeneral
BrandNational Instruments
ModelSCB-68A
CategoryCables and connectors
LanguageEnglish

Summary

Important Information

Warranty

Details the warranty terms and conditions for the SCB-68A and software media.

Copyright

Outlines the publication's copyright laws and reproduction restrictions.

End-User License Agreements and Third-Party Legal Notices

Provides locations for EULAs and third-party legal information.

Trademarks

Lists National Instruments trademarks and other product/company names.

Chapter 1: Getting Started with the SCB-68A

What You Need to Get Started

Lists the required hardware, software, and tools for SCB-68A setup.

Setting up the SCB-68A

Provides safety cautions and initial steps for setting up the SCB-68A.

Using the SCB-68A in Direct Feedthrough Mode

Explains how to configure switches for direct signal passthrough.

Using the SCB-68A with MIO DAQ Devices

Describes using the SCB-68A with Multifunction I/O (MIO) DAQ devices.

Mounting the SCB-68A

Details methods for mounting the SCB-68A to a panel or DIN rail.

Soldering and Desoldering Components on the SCB-68A

Explains the process and equipment for modifying the SCB-68A board.

Chapter 2: Analog Input and Temperature Sensor Measurements

Connecting Analog Input Signals

Summarizes recommended input configurations for various signal sources.

Floating Signal Sources

Describes signal sources not connected to building ground and their connection methods.

Ground-Referenced Signal Sources

Explains signal sources connected to building ground and potential issues.

Using the Temperature Sensor

Details how to use the SCB-68A's built-in temperature sensor for CJC.

Lowpass Filtering

Explains the principles and applications of lowpass filters for analog signals.

Highpass Filtering

Explains the principles and applications of highpass filters for analog signals.

Current Input Measurement

Describes adding components for measuring current up to 20 mA.

Attenuating Voltage

Explains how to use voltage dividers to condition signals exceeding DAQ input limits.

Chapter 3: Analog Output Waveforms

Analog Output Channel Pad Configuration

Shows circuitry and pad configurations for analog output channels.

Lowpass Filtering

Explains lowpass filtering principles for analog output signals.

Attenuating Voltage

Details using voltage dividers to attenuate analog output signals.

Chapter 4: PFI 0 and Digital Input Measurements

PFI 0 Channel Pad Configuration

Shows circuitry for PFI 0 digital trigger input.

Lowpass Filtering

Explains lowpass filtering for digital trigger input signals.

Attenuating Voltage

Details using voltage dividers for digital input attenuation.

Digital Input Voltage Dividers

Explains calculating voltage divider values for digital input signals.

Chapter 5: Fuse and Power Information

Power Supply Circuitry

Shows the +5 V power supply circuit on the SCB-68A.

Fuse

Describes the self-resetting fuse protecting the +5 V power input.

Appendix A: Specifications

Safety Voltages

Specifies the safe voltage limits for connecting to the SCB-68A.

Power Requirement

Details the power consumption characteristics of the SCB-68A.

Physical Characteristics

Lists dimensions, weight, connector types, and wire gauge.

Safety

Mentions safety standards met by the product for laboratory use.

Electromagnetic Compatibility

Lists EMC standards and emissions classifications the product meets.

Appendix B: Technical Support and Professional Services

Self-Help Technical Resources

Points to NI's online resources like KnowledgeBase and drivers.

Standard Service Program Membership

Describes direct technical support and training access.

Training and Certification

Provides information on NI's training and certification programs.

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