Index
SCXI-1141/1142/1143 User Manual I-6 ni.com
specifications
amplifier characteristics, A-1
CD compliance, A-7
digital I/O, A-4
electromagnetic compatibility, A-6
environmental characteristics, A-6
filter characteristics, A-2
physical, A-5
safety, A-6
stability, A-4
system noise, A-3
Waste Electrical and Electronic
Equipment (WEEE), A-7
specifying channel strings in
NI-DAQmx,5-10
stability specifications, A-4
step input response of lowpass filters
(figure),4-6
stopband, 4-5
system noise specifications, A-3
T
theory of operation
block diagram, 4-2
digital control circuitry, 4-3
input amplifiers, 4-3
gain and offset correction, 4-4
lowpass filters
DC-correction circuitry, 4-15
external clock input, 4-14
filter theory, 4-5
magnitude response, 4-6
overload recovery, 4-15
performance, 4-6
phase response, 4-8
response to step input (figure), 4-6
SCXI-1141/1142/1143 as
antialiasing filter, 4-12
setting cutoff frequency, 4-11
transfer function characteristics
(figure), 4-5
major components of SCXI-1141, 4-1
power-up state, 4-1
thermistor, measurement properties
(table), 5-6
thermocouple, measurement properties
(table), 5-5
timing and triggering, adjusting, 5-3
transfer functions of lowpass filters
characteristics (figure), 4-5
purpose, 4-5
troubleshooting
NI-DAQmx, 1-5
self-test verification, 1-5
V
verifying
SCXI-1141/1142/1143 software
installation, 1-5
signal, 3-4
NI-DAQmx, 3-4
troubleshooting, 1-5
Visual Basic
creating code for the
SCXI-1141/1142/1143, 5-10
W
Waste Electrical and Electronic Equipment
(WEEE) specification, A-7