Page 5 - Contents; About This Manual; ix
© National Instruments Corporation v SC-2043-SG User Manual Contents About This Manual ............................................................................................................... ix Organization of This Manual .........................................................................
Page 6 - Glossary
Contents SC-2043-SG User Manual vi © National Instruments Corporation Chapter 4Theory of Operation .......................................................................................................... 4-1 Functional Overview .........................................................................
Page 7 - Figures
Contents © National Instruments Corporation vii SC-2043-SG User Manual Figures Figure 1-1. The Relationship between the Programming Environment,NI-DAQ, and Your Hardware ............................................................................. 1-3 Figure 2-1. SC-2043-SG Parts Locator Diagram ......
Page 8 - Organization of This Manual
© National Instruments Corporation ix SC-2043-SG User Manual About This Manual This manual describes the electrical and mechanical aspects of the SC-2043-SG and containsinformation concerning its configuration and operation. The SC-2043-SG is an eight-channelstrain gauge signal conditioning accessor...
Page 9 - Conventions Used in This Manual; The following conventions are used in this manual:; National Instruments Documentation
About This Manual SC-2043-SG User Manual x © National Instruments Corporation Conventions Used in This Manual The following conventions are used in this manual: bold italic Bold, italic text denotes a note, caution, or warning. italic Italic text denotes emphasis, a cross reference, or an introducti...
Page 10 - Related Documentation; Your DAQ hardware user manual; Customer Communication
About This Manual © National Instruments Corporation xi SC-2043-SG User Manual • Accessory manuals–If you are using accessory products, read the terminal block and cableassembly installation guides or accessory board user manuals. They explain how tophysically connect the relevant pieces of the syst...
Page 11 - What You Need to Get Started; One of the following software packages and documentation:
© National Instruments Corporation 1-1 SC-2043-SG User Manual Chapter 1Introduction This chapter describes the SC-2043-SG, lists what you need to get started with yourSC-2043-SG, describes the optional software and optional equipment, and explains how tounpack your SC-2043-SG. About the SC-2043-SG T...
Page 12 - One of the following:; Software Programming Choices; LabVIEW and LabWindows/CVI Application Software
Introduction Chapter 1 SC-2043-SG User Manual 1-2 © National Instruments Corporation One of the following: SH6850 cable or R6850 cable assembly kit (MIO E Series DAQ board)NB-1 cable (MIO Series, Lab-PC+, or DAQPad-1200 board)PR50-50F cable (DAQCard-1200) Detailed specifications of the SC-2043-SG ar...
Page 13 - Figure 1-1. The Relationship between the Programming Environment,; Register-Level Programming; Optional Equipment; Single or double height rack-mount kit with acrylic plastic cover
Chapter 1 Introduction © National Instruments Corporation 1-3 SC-2043-SG User Manual minimal modifications to your code. Figure 1-1 illustrates the relationship between NI-DAQ andLabVIEW and LabWindows/CVI. LabWindows/CVI (PC or Sun SPARCstation) LabVIEW (PC, Macintosh, or Sun SPARCstation) Conventi...
Page 14 - Unpacking; Never touch the exposed pins of connectors.
Introduction Chapter 1 SC-2043-SG User Manual 1-4 © National Instruments Corporation Unpacking Your SC-2043-SG board is shipped in an antistatic package to prevent electrostatic damage tothe board. Electrostatic discharge can damage several components on the board. To avoid suchdamage in handling th...
Page 15 - Installation; before installing or making any connection to the SC-2043-SG.; DAQ Board; Board Configuration
© National Instruments Corporation 2-1 SC-2043-SG User Manual Chapter 2Installation and Configuration This chapter describes the installation and configuration of your SC-2043-SG. The topicsdiscussed are connection of the SC-2043-SG to the DAQ board and switch and jumperconfiguration for your SC-204...
Page 17 - Power Supply Selection; Switch
Chapter 2 Installation and Configuration © National Instruments Corporation 2-3 SC-2043-SG User Manual Switch SW1 selects the power supply source for the SC-2043-SG board. Two jumpers, W1 andW3, select the excitation source for the strain gauge bridges. Jumper W2 routes either theexcitation voltage ...
Page 18 - Onboard/External Excitation Selection; Jumpers
Installation and Configuration Chapter 2 SC-2043-SG User Manual 2-4 © National Instruments Corporation Onboard/External Excitation Selection If you want to use the onboard voltage excitation source to excite your strain gauge bridges, setboth jumpers W1 and W3 to the INT position. If you want to use...
Page 19 - Local Excitation Sense Selection; MIO or MIO E Series Boards; screw
Chapter 2 Installation and Configuration © National Instruments Corporation 2-5 SC-2043-SG User Manual Local Excitation Sense Selection MIO or MIO E Series Boards If you are using the SC-2043-SG with an MIO or MIO E Series board, you can locally sense theexact level of the excitation voltage by rout...
Page 20 - liable for any damages resulting from; Jumper; leave the
Installation and Configuration Chapter 2 SC-2043-SG User Manual 2-6 © National Instruments Corporation Lab/1200 Series Boards If you are using the SC-2043-SG with a Lab/1200 Series board, you can locally sense the exactlevel of the excitation voltage by routing the excitation voltage (internal or ex...
Page 21 - Bridge Completion Selection; Channel
Chapter 2 Installation and Configuration © National Instruments Corporation 2-7 SC-2043-SG User Manual Bridge Completion Selection Jumpers W4–W7 and W10–W13 select half-bridge or full-bridge configuration for each channelon the SC-2043-SG. Setting a jumper in the FB position disconnects the half-bri...
Page 23 - I/O Connector Pin Description; liable for any damages resulting from any such; must be careful; to use the wrong connector.
© National Instruments Corporation 3-1 SC-2043-SG User Manual Chapter 3Signal Connections This chapter describes the signal connections to the SC-2043-SG board. I/O Connector Pin Description Warning: Connections, including any power signals connected to ground and vice versa, that exceed any of the ...
Page 28 - Screw Terminal Description
Signal Connections Chapter 3 SC-2043-SG User Manual 3-6 © National Instruments Corporation Table 3-4. Lab/1200 (J9) I/O Connector Signal Summary Signal Name Pin Number Description AGND 11 Analog Ground—This pin provides the AC noise current return point forthe analog circuitry and for the onboard ex...
Page 29 - Table 3-5. Screw Terminals J1–J6 Signal Summary; EX inputs are; Analog Input Connections
Chapter 3 Signal Connections © National Instruments Corporation 3-7 SC-2043-SG User Manual Table 3-5 lists the screw terminals (J1–J6) signal summary. Table 3-5. Screw Terminals J1–J6 Signal Summary Signal Name Description CH<0..7> ± Input Channels—These inputs are the input signals for analog...
Page 30 - Full-Bridge Connection
Signal Connections Chapter 3 SC-2043-SG User Manual 3-8 © National Instruments Corporation Full-Bridge Connection In this configuration all four elements of the bridge are external to the SC-2043-SG. Four leadwires connect the full-bridge to screw terminals +EXn, -EXn, CHn+, and CHn-. The pair ofwir...
Page 31 - Quarter-Bridge Connection; Offset Nulling; Offset Nulling Adjustment
Chapter 3 Signal Connections © National Instruments Corporation 3-9 SC-2043-SG User Manual Quarter-Bridge Connection In this configuration only one strain gauge is used. Bridge completion is provided by the internalhalf-bridge completion reference as well as a quarter-bridge completion resistor. Thi...
Page 32 - Nulling Range Adjustment; RTI is the desired nulling range, referred to input.
Signal Connections Chapter 3 SC-2043-SG User Manual 3-10 © National Instruments Corporation To null the static voltage offset of the system, including the bridge, use the following procedure: 1. Configure and connect your bridge to the selected channel. 2. Read the channel output. 3. While monitorin...
Page 33 - mV RTI; Other Connection Considerations; which may affect your measurements, all analog input signals
Chapter 3 Signal Connections © National Instruments Corporation 3-11 SC-2043-SG User Manual For example, assuming: EX = 2.5 VV desired nulling range RTI = ± 1 mV RTI Then, using the above formula, the new nulling resistor should have a value of: R 2.5 V 100 1 mV RTI 250 k null ≈ ± Ω ≈ Ω Othe...
Page 34 - Functional Overview
© National Instruments Corporation 4-1 SC-2043-SG User Manual Chapter 4Theory of Operation This chapter contains a functional overview of the SC-2043-SG board and explains the operationof each functional unit making up the SC-2043-SG. Functional Overview The SC-2043-SG consists of eight channels, ea...
Page 36 - Bridge Completion Network
Chapter 4 Theory of Operation © National Instruments Corporation 4-3 SC-2043-SG User Manual Bridge Completion Network The SC-2043-SG provides onboard bridge completion that you can use with half-bridge andquarter-bridge networks. The SC-2043-SG has a single half-bridge reference that is common to al...
Page 37 - Filtering; Power Supply
Theory of Operation Chapter 4 SC-2043-SG User Manual 4-4 © National Instruments Corporation Filtering Each channel of the SC-2043-SG has a postgain, lowpass filter. This filter is a single-pole,buffered, RC filter with a cutoff frequency of 1.6 kHz. I/O Connectors and Breakout Screw Terminals The ou...
Page 38 - Excitation Adjustment; Onboard Excitation Source; Note: Remember to short the input terminals (CHn
© National Instruments Corporation 5-1 SC-2043-SG User Manual Chapter 5Calibration Procedures This chapter discusses the calibration procedures for the SC-2043-SG board. Excitation Adjustment Onboard Excitation Source The excitation voltage source on the SC-2043-SG is factory-adjusted to 2.5 V ± 0.5...
Page 39 - External Excitation Source; set jumper; liable for
Calibration Procedures Chapter 5 SC-2043-SG User Manual 5-2 © National Instruments Corporation External Excitation Source You can connect an external excitation source of up to 10 VDC to screw terminal block J7 on theSC-2043-SG. If you are using an external excitation source, you must perform the fo...
Page 40 - Analog Input; Input Characteristics; Excitation
© National Instruments Corporation A-1 SC-2043-SG User Manual Appendix ASpecifications This appendix lists the specifications for the SC-2043-SG. These are typical at 25 ° C unless otherwise noted. Analog Input Input Characteristics Number of channels ...................................................
Page 41 - Physical; Environment
Specifications Appendix A SC-2043-SG User Manual A-2 © National Instruments Corporation Bridge type .................................................................. Half or full (jumper-selectable); with sockets for quarter-bridge completion Bridge completion .........................................
Page 42 - Branch Offices
© National Instruments Corporation B-1 SC-2043-SG User Manual Appendix BCustomer Communication For your convenience, this appendix contains forms to help you gather the information necessaryto help us solve technical problems you might have as well as a form you can use to comment onthe product docu...
Page 43 - Technical Support Form
Technical Support Form Photocopy this form and update it each time you make changes to your software or hardware, and use the completedcopy of this form as a reference for your current configuration. Completing this form accurately before contactingNational Instruments for technical support helps ou...
Page 45 - Documentation Comment Form
Documentation Comment Form National Instruments encourages you to comment on the documentation supplied with our products. Thisinformation helps us provide quality products to meet your needs. Title: SC-2043-SG User Manual Edition Date: August 1996 Part Number: 320995B-01 Please comment on the compl...
Page 46 - Prefix
© National Instruments Corporation G-1 SC-2043-SG User Manual Glossary ___________________________________________________ Prefix Meaning Value p- pico- 10- 12 n- nano- 10- 9 µ - micro- 10- 6 m- milli- 10- 3 k- kilo- 10 3 M- mega- 10 6 ˚ degrees Ω ohms +5 V +5 V signal A amperes ACH# DAQ board analo...
Page 48 - Index
© National Instruments Corporation I-1 SC-2043-SG User Manual Index Numbers/Symbols +5 V signal Lab/1200 (J9) connector summary (table), 3-6 MIO (J10) connector summary (table), 3-5 power supply, 4-4 fuses, 4-4 A ACH<0..7> signal Lab/1200 (J9) connector summary (table), 3-6 MIO (J10) connector...
Page 49 - DGND signal
Index SC-2043-SG User Manual I-2 © National Instruments Corporation D DGND signal MIO (J10) connector summary (table), 3-5 Lab/1200 (J9) connector summary (table), 3-6 documentation conventions used in manual, xNational Instruments documentation, xorganization of manual, ixrelated documentation, xi ...
Page 50 - See calibration procedures.
Index © National Instruments Corporation I-3 SC-2043-SG User Manual S SC-2043-SG block diagram, 4-2features, 1-1I/O connectors (J9 and J10) (tables), 3-2, 3-4 optional equipment, 1-3screw terminal (J1–J6) description, 3-6 table, 3-7 software programming choices LabVIEW and LabWindows/CVI application...
