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Index

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I-3

SCXI-1141/1142/1143 User Manual

signal descriptions (table), 2-3

front signal connector

pin assignments (figure), 2-2

functional overview of SCXI-1141. See theory

of operation

G

gain and offset correction, 4-4

See also calibration

gain register, 4-3
gain/input range, configuration, 3-1
ground-offset AC-coupled signal connection

ground-referenced signal connections

AC-coupled (figure), 2-5

H

hardware, SCXI-1141/1142/1143, 1-2

I

input amplifiers. See amplifiers
installation

application software, 1-4
NI-DAQ, 1-4
removing SCXI-1141/1142/1143 from

SCXI chassis, B-1

SCXI using NI-DAQmx, 1-5
SCXI-1141/1142/1143, 1-4

instrumentation amplifiers. See amplifiers

L

developing an application, 5-7
programming a task (table), 5-8

software, 1-2
using a NI-DAQmx channel property

LabWindows/CVI, 1-2

creating code for using

SCXI-11141/1142/1143, 5-11

lowpass filters, 4-5

DC-correction circuitry, 4-15
external clock input, 4-14
filter bypass mode, 4-16
filter theory, 4-5
overload recovery, 4-15
performance of SCXI-1141 filters

magnitude response, 4-6
phase response, 4-8

response to step input (figure), 4-6
SCXI-1141/1142/1143 as antialiasing

setting cutoff frequency, 4-11
specifications, A-2
transfer function characteristics

M

magnitude response, SCXI-1141/1142/1143

typical magnitude response (figure), 4-7
typical passband response (figure), 4-8

Measurement & Automation Explorer

configurable settings, 3-2
removing modules, B-1
self-test verification

troubleshooting, 1-5

measurement properties, NI-DAQmx

current (table), 5-6
RTD (table), 5-6
thermistor (table), 5-6
thermocouple (table), 5-5
voltage (table), 5-4