Axial Extensometer Epsilon Model 3542

Axial Extensometer Epsilon Model 3542

Manufactured by Epsilon Technology Corp

Axial Extensometer from Epsilon in the USA.

The 3542 is a general purpose strain gauge extensometers for axial tensile, compression, and cyclic testing.

Gauge lengths from 10 to 80 mm (and 0.5 to 2 inches) and full scale measuring ranges from 5% to 100% strain.

These extensometers are designed for testing a wide range of materials, including metals, plastics, composites and ceramics. All will perform both tension and compression strain measurement. The dual flexure design makes them very rugged and insensitive to vibrations, which permits higher frequency operation.

They come standard with Epsilon’s quick attach kit, making it possible to mount the extensometer on the test specimen quickly and easily with one hand. The quick attach kit can be removed, allowing mounting of the extensometer with springs or rubber bands.

Model 3542 extensometers are applicable for testing with the following standards:

• ISO 6892-1, 527-2, 527-4, 527-5, 10113
ASTM E8, E9, D3039, D638, A370, D3552, E517, E646

The Model 3542 extensometers are strain gauged devices, making them compatible with any electronics designed for strain gauged transducers. Most often they are connected to a test machine controller, and Epsilon will equip the extensometer with a compatible connector wired to plug directly into the controller.

For systems lacking the required electronics, Epsilon can provide a variety of solutions for signal conditioning and connection to data acquisition systems or other equipment.

Axial Extensometer Features

  • May be left on through specimen failure.
  • Full bridge, 350 ohm strain gauged design for compatibility with nearly any test system.
  • Standard units meet ASTM class B-1 requirements for accuracy. A test certificate is included. ISO 9513 class 0,5 test certificates are available upon request.
  • All models can measure in both tension and compression and can be used for cyclic testing.
  • Standard quick attach kit allows one hand mounting to specimens.
  • Rugged, dual flexure design for strength and improved performance. Much stronger than single flexure designs, this also allows cyclic testing at higher frequencies.
  • All models have mechanical over-travel stops in both directions. Cable stops are used for over-travel protection where required. Epsilon’s cable stops are fully contained between the arms of the extensometer and do not hang below where they can interfere with fixturing–especially during compression testing.
  • Hardened tool steel knife edges are easily replaced. A spare set comes with every extensometer.
  • Gauge length adaptor kits enable configuration of multiple gauge lengths with one extensometer.
  • Replaceable arms and spacers for ease of repair.
  • High and low temperature options extend operation from as low as -270°C to +200 °C (-454 °F to +400 °F).
  • Includes the Epsilon Shunt Calibration System for on-site electrical calibration.
  • Includes high quality foam lined case.

Contact us today and our experienced engineers will help find and specify the correct extensometer for your needs

To give you an idea of our full range here is the Epsilon Extensometer Catalog

Excitation: 5 to 10 VDC recommended, 12 VDC or VAC max.

Output: 2 to 4 mV/V, nominal, depending on model

Linearity: ≤0.15% of full scale measuring range

Temperature Range: Standard (-ST) is -40 °C to +100 °C (-40 °F to 210 °F)

Cable: Integral, ultra-flexible cable, 2.5 m (8 ft) standard

Standard Quick Attach Kit: Fits round samples up to 25 mm (1.0 inch) diameter and flats up to 12 mm thick by 31 mm wide (0.5 inch by 1.25 inch); attach to larger specimens using rubber bands or springs (included)

Operating Force: 30 g typical

  • Quick attach kit wireforms for large specimens
  • Adaptor kits to change gauge lengths
  • Connectors to interface to nearly any brand of test equipment
  • Special coatings and stainless steel knife edges available for biomedical tests
  • Speciality Knife Edges

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