Extensometers for materials testing
Analog Signal Conditioners – Model SGA
The SGA series signal conditioners are ideal for cyclic and high speed testing where no display is needed. Available in single and dual channel versions, they provide the signal conditioning electronics needed for a strain gage based extensometer.
36 EXTENSOMETER MODELS are available in many thousands of variations. Our focus on helping customers has led to the development of models to cover nearly any test method.
Operation of these, and all of Epsilon’s extensometers, are
VERIFIED TO APPLICABLE STANDARDS SUCH AS ASTM E83 OR ISO 9513
using in-house calibration systems that are calibrated with Epsilon’s laser interferometer system.
WITH EPSILON’S 20+ YEAR HISTORY OF SERVICE
to the materials testing community, you know we will be there to stand behind our products when your critical application requires it.
The SGA has adjustable excitation voltage and a high accuracy amplifier to provide a high level DC voltage output. An offset adjustment potentiometer is easily accessible on the front panel.
The output is ideal for direct connection to data acquisition boards or test controllers which require high level voltage or current inputs.
All models are supplied with a universal power supply and adapters for your country: specify regional adapters when ordering. A 2.5 m (8 ft) output cable is included to connect to external systems. Calibration with an extensometer (for each channel) is included.
Zero Adjustment Knob(s): On front panel. Fine (±5% FS) and coarse (±80% FS) adjustment ranges.
Selectable Output Ranges: ±5V, ±10V*, 0-10V, 0-20 mA, etc.
Bridge Excitation: 5V or 10V* DC
Bridge Sensitivity Range: 0.06 to 30.0 mV/V
Linearity: 0.03% FS typical
Filtering: 8 settings, 1-5000 Hz, plus secondary 800 Hz filter. 1 kHz* default
Operating Temperature Range: -10 to +50 °C
Zero Temperature Coefficient: 0.009%/C (90 ppm/°C)
90 Day Output Stability: ~330 ppm
Output Noise: 10-100 µV (1-100 ppm), depending on filter, DAQ, and gain. 50 µV typical.
Input Power: 100-240 VAC, 50-60Hz. Specify regional power plug type required.
Includes: Power supply, connection for extensometer(s), output cable(s) and calibration with extensometer
* default setting
SGA-1 / SGA-2
Model SGA Available Versions:
Model SGA-1 Single channel signal conditioner
Model SGA-2 Dual channel signal conditioner