SCC-SG Series Strain-Gauge
Modules User Guide
The SCC-SG Series strain-gauge input modules (SCC-SG
XX
) allow you to
take quarter-, half-, and full-bridge configuration strain measurements. Use
them as follows:
•
SCC-SG01 for 120
Ω
quarter-bridge configurations.
•
SCC-SG02 for 350
Ω
quarter-bridge configurations.
•
SCC-SG03 for half-bridge configurations.
•
SCC-SG04 for full-bridge configurations.
•
SCC-SG24 for at least 350
Ω
full-bridge configurations.
Each module consists of two strain-gauge input channels, offset-nulling
circuitry for each channel, and an excitation circuit. Each input channel
includes an instrumentation amplifier with differential inputs and a fixed
gain of 100.
The SCC-SG11 is a shunt calibration module. It contains two pairs of
switches and resistors that you connect across strain-gauge elements where
you want to perform shunt calibration.
Contents
Strain Gauges .......................................................................................... 3
Conventions ............................................................................................ 4
What You Need to Get Started ............................................................... 5
Unpacking the Module............................................................................ 6
Installing the Module .............................................................................. 6
Connecting Strain-Gauge Input Signals.................................................. 7
and SCC-SG24 .................................................................... 8
Variable Definitions......................................................................... 8
SCC-SG01/02 Quarter-Bridge Connection ..................................... 9
Quarter-Bridge Type I .............................................................. 10
SCC-SG03 Half-Bridge Connection................................................ 12
Half-Bridge Type I ................................................................... 12
