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National Instruments Corporation
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About the SCXI-1521/B
This chapter introduces the SCXI-1521/B module, and explains how to
install the software and hardware.
Note
Descriptions in this chapter explicitly refer to the first channel (channel 0), but these
descriptions also are applicable to the remaining 23 channels.
The SCXI-1521 and SCXI-1521B modules are 24-channel modules for
interfacing to quarter-bridge strain gauges and are configured using
Measurement & Automation Explorer (MAX) or through NI-DAQmx
property nodes. The SCXI-1521 has 350
Ω
completion resistors while the
SCXI-1521B has 120
Ω
completion resistors.
The SCXI-1521/B includes the following functionality:
•
DC voltage excitation between 0 and 5 V in 1023 steps
•
Programmable offset nulling circuitry
•
10 Hz lowpass filter
•
Analog input gain of 42 V/V
•
Software controllable shunt calibration
What You Need to Get Started
To set up and use the SCXI-1521/B, you need the following:
❑
Hardware
–
SCXI-1521/B module
–
SCXI-1317 terminal block
–
SCXI or PXI/SCXI combo chassis
–
Computer if using an SCXI chassis
–
Cabling, cable adapter, and sensors as required for your
application
