National Instruments NI 9218, Начало работы, Страница: 12 / 22

EX+
EX-
VEX+
VEX-
V
SUP+
V
SUP -
NI 9218
+
-
AI+
AI -
■
You must connect AI- to EX- on the NI 9218.
■
The NI 9218 provides optional 12 V sensor excitation. To use the 12 V
excitation, connect a 9 VDC to 30 VDC power supply to Vsup, connect the
excitation terminals on your sensor to EX+/EX-, and enable 12 V excitation in
your software.
Related reference
■
NI 9982 ±65 mV Connection Pinout
Full-Bridge Connections
RS+
EX+
AI+
AI –
EX
–
RS –
SC
SC
NI 9218
■
The NI 9218 provides 2 V excitation to loads ≥120 Ω or 3.3 V excitation to
loads ≥350 Ω.
■
The NI 9218 provides optional connections for remote sensing (RS) and
shunt calibration (SC). Remote sensing corrects for errors in excitation leads
and shunt calibration corrects for errors caused by resistance within one leg of
the bridge.
ni.com
12
NI-9218 Getting Started