Contents
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National Instruments Corporation
vii
Appendix B
Removing the SCXI-1503
4-Wire Resistive Sensor Connected in a 4-Wire Configuration ...........2-3
2-Wire Resistive Sensor Connected in a 2-Wire Configuration ...........2-4
3-Wire Resistive Sensor Configuration.................................................2-5
3-Wire Configuration Using Matched Current Sources........................2-6
Block Diagram of SCXI-1503...............................................................4-2
2-Wire RTD Measurement ....................................................................4-6
Resistance-Temperature Curve for a 100
Resistance-Temperature Curve for a 2,252
Thermistor ....................4-11
Thermistor Measurement with Constant Current Excitation ................4-11
Typical Program Flowchart for Voltage Measurement Channels.........5-2
SCXI-1503 Dimensions ........................................................................A-5
Removing the SCXI-1503 .....................................................................B-2