Strain Gage Module for Compact FieldPoint
Each input channel on the cFP-SG-140 has four terminals:
1. Excitation voltage output (Vexc
2. Positive signal input (Vin+)
3. Negative signal input (Vin-)
4. Common input (COM)
)
V
V
exc
exc
Quarter-Bridge
Strain Gages
V
V
V
in+
in–
in+
in–
Excitation
Voltage
Excitation
Voltage
Input
Circuitry
+
–
Input
Circuitry
+
–
Half-Bridge
Strain Gages
V
External
Completion
Resistor
COM
COM
cFP-SG-140
cFP-SG-140
Full-Bridge
Strain Gage
V
exc
V
in+
in–
Input
Circuitry
V
+
–
Excitation
Voltage
COM
cFP-SG-140
Wiring Schematic for the cFP-SG-140 Module
Ordering Information
NI cFP-SG-140 ....................................................................777318-140
Recommended Compact FieldPoint System Products
NI cFP-2120 ......................................................................777317-2120
NI cFP-BP-4............................................................................778617-04
NI cFP-CB-1............................................................................778618-01
NI PS-5 power supply............................................................778805-90
NI Developer Suite Professional Control Edition ....................777906-03
BUY NOW!
For complete product specifications, pricing, and accessory
information, call 800 813 3693 (U.S.) or go to ni.com/compactfieldpoint.
BUY ONLINE at ni.com or CALL 800 813 3693 (U.S.)
2
NI [ National Instruments ]
