National Instruments SCXI -1122 User Manual
Page 60
Index
SCXI-1122 User Manual
Index-2
© National Instruments Corporation
E
EEPROM, 5-1
environment specifications, A-3
equipment, optional, 1-4 to 1-5
excitation channel signal connections, 3-8
to 3-9
connecting quarter-bridge strain gauge to
channel 0 (illustration), 3-9
exceeding overvoltage protection, 3-8
excitation level, 3-8 to 3-9
internal half-bridge completion, 3-9
maximum load per excitation channel
(table), 3-9
excitation output channels
calibration, 4-4, 5-5
four-wire scan connection with
multiplexed current excitation
(illustration), 4-6
pros and cons of two-wire and four-wire
connections with current excited
transducers (illustration), 4-7
series connection with current excitation
(illustration), 4-6
specifications, A-3
theory of operation, 4-3 to 4-7
F
filtering, 4-4
floating AC-coupled signal connection
referenced to chassis ground for better
SNR (illustration), 3-6
floating signal connection referenced to
chassis ground for better SNR
(illustration), 3-6
front connector
AC-coupled signal connection with high
common-mode voltage
(illustration), 3-7
analog input channel signal connections,
3-5 to 3-8
avoiding relay wear (illustration), 3-8
excitation channel signal connections,
3-8 to 3-9
floating AC-coupled signal connection
referenced to chassis ground for better
SNR (illustration), 3-6
floating signal connection referenced to
chassis ground for better SNR
(illustration), 3-6
ground-referenced signal connection
with high common-mode voltage
(illustration), 3-6
pin assignments (illustration), 3-3
signal connection descriptions, 3-4
to 3-5
temperature sensor connection, 3-9
G
gain and offset calibration, 5-2 to 5-3
ground-referenced signal connection with
high common-mode voltage
(illustration), 3-6
H
half-bridge completion network, 3-9, 4-5
hardware installation. See installation.
I
IEX- signal, 3-4
IEX+ signal, 3-4
installation. See also configuration.
current-loop receivers (resistors), 2-4
to 2-5
hardware installation, 2-6
unpacking the SCXI-1122, 1-5
internal half-bridge completion, 3-9, 4-5
isolation amplifier, 4-4
J
jumper settings
analog configuration (table), 2-4
digital signal connections (table), 2-3
L
Lab-NB/PC/PC+ boards
SCXIbus to SCXI-1122 rear signal
connector to DAQ board pin
equivalences (table), 3-13
LabVIEW applications software, 1-2, 2-6
LabWindows applications software, 1-2, 2-6