National Instruments NI 435 Series, User Manual, Page: 76 / 77

Index
NI 435x User Manual I-4 ni.com
multiple transducer connections to
analog channels (figures), 2-22
preventing safety hazards
(caution), 2-23
input ranges, 2-23
optimizing
AC noise effects, 2-26
auto-zero method, 2-24
connecting to external circuits, 2-25
guidelines for resistance
measurement (table), 2-25
programmable
ground-referencing, 2-25
programmable open-thermocouple
detection, 2-25
self-heating, 2-26
thermal EMF, 2-27
two-wire, three-wire, and four-wire
measurements, 2-25
RTDs
connecting, 2-16
relationship of resistance and
temperature, 2-14
thermistors
connecting, 2-20
resistance-temperature
characteristics, 2-20
RTDs
accuracy specifications (tables), A-3
Callendar-Van Dusen coefficients
(table), 2-16
connecting
four-wire RTD measurement
(figure), 2-17
three-wire RTD measurement
(figure), 2-17
two-wire RTD measurement
(figure), 2-16
definition, 2-14
measuring temperature, 2-14
optimizing measurements, 2-24
relationship of resistance and
temperature, 2-14
resistance-temperature curve
(figure), 2-15
S
self-heating, errors due to, 2-26
signal connections
using the NI 435 x (ISA, USB, PXI, PCI)
with the TBX-68 (table), B-1
signal sources
floating signal source, 2-4
ground-referenced signal source, 2-4
software (NI resources), C-1
source impedance, DC voltage
measurement, 2-12
specifications
accuracy
calculation examples, A-6
DC voltage (table), A-4
resistance (table), A-5
RTD (tables), A-3
thermistor (table), A-4
thermocouple (table), A-1
analog input
amplifier characteristics, A-7
dynamic characterics, A-7
excitation, A-8
input characteristics, A-6
bus interface, A-9
digital I/O and alarm outputs, A-8
physical, A-9
power requirements, A-9
support, technical, C-1