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National Instruments Corporation
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Contents
Chapter 1
Getting Started with the NI 447
What You Need to Get Started ......................................................................................1-2
Related Documentation..................................................................................................1-2
Unpacking ......................................................................................................................1-3
Software Programming Choices ....................................................................................1-3
NI-DAQ...........................................................................................................1-3
National Instruments ADE Software...............................................................1-4
Using PXI with CompactPCI.........................................................................................1-5
Safety Information .........................................................................................................1-6
Installing the Software ...................................................................................................2-1
Installing the Hardware..................................................................................................2-1
Testing the Device .........................................................................................................2-3
Connecting Signals ........................................................................................................2-4
Generating Onboard Current Excitation with IEPE Circuitry.........................2-9
Input Coupling.................................................................................................2-9
Input Polarity and Input Range........................................................................2-10
Digital Trigger .................................................................................................2-10
Using Test Panels to Acquire a Signal...........................................................................2-10
Field Wiring Considerations ..........................................................................................2-11
Selecting the Sample Clock Frequency .........................................................................2-12
Synchronizing Multiple Devices ...................................................................................2-12
Device Configuration Issues ..........................................................................................2-14
Chapter 3
Device Overview and Theory of Operation
Functional Overview......................................................................................................3-1
I/O Connectors ...............................................................................................................3-2
Analog Input Signal Connections ..................................................................................3-3