Model EAL - Long Gauge Length Axial Extensometer

Ideal for testing long samples such as re-bar, wire, and weld joints.  These extensometers are designed from the ground up to be lighter and more durable than the competition.

Our Model EAL long gauge length, axial extensometer is built to withstand the harsh environment of a re-bar testing lab.  This model is specifically designed for tests through specimen failure.  Its two piece design allows the extensometer to pull apart without damaging the extensometer.


Lighter and more rugged than the competition, model EA is designed to reduce your lab operating costs.  This model features a heat-treated, tool steel gauge designed with an increased taper & reduced over-all size.  The larger taper reduces reading errors while the smaller size reduces the weight of the extensometer.  Model EAL also features larger arm attachment fasteners and an improved cable attachment system; the two leading causes of extensometer failure.  For ease of mounting, model EAL also includes our Axial Quick Attach System.  This attachment system is designed to provide easy attachment while not unduly influencing the extensometer's output.  The system includes round and flat wire forms for both round and flat specimens. 

All of Reliant's extensometers feature a full strain gauge bridge design and are compatible with most any brand test equipment.  We can install the proper connector to interface to most any electronics including Instron and MTS.  If your test frame or set-up does not have the required strain signal conditioner, we can supply stand-alone electronics calibrated with your extensometer. This will allow you to use a chart recorder, digital display, or data acquisition card. 

All standard models meet ASTM B-1 and ISO 9513, class 0,5 accuracy requirements.  Each extensometer comes with an inspection certificate traceable to NIST, a spare parts kit, a spare set of tool-steel knife edges, and a quality, foam lined, plastic case.

Standard models available in any combination of measuring range and temperature range listed below.   If you need an extensometer in a configuration other than what is listed, please contact us with you specific needs.

 

Features 

• Designed for use through specimen failure.
• Full Wheatstone Bridge, strain gauge design.
• Linearity of 0.15% or better for most standard models.
• Rugged yet light weight design for improved performance.
• Modular design allows easy conversion to optional gage length configurations.
• Packaged in high quality, foam lined, case.
• Self-supporting and easy to mount with adjustable, integral contact force springs.

Specifications 

Excitation:   5 to 10 VDC recommended, 12 VDC or VAC maximum 

Output:   2 to 4 mV/V nominal

Linearity:   < 0.15% of full measuring range

Cable:   Tough, flexible, 8 ft. (2.5 m) Teflon ® standard cable

Warranty:   Full one year warranty

Options

Bare leads or connector to interface to most any brand test equipment

Special knife edges

Special wire forms for large or odd shaped specimens

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