Weighing as little as 8 grams, these miniature extensometers are designed to have very low operating force specimen influence. All use an improved version of Epsilon’s dual flexure design which makes them very rug size. With a module height of 15.2 mm (0.6 inches), they will fit in the limited space between grips that is type test samples. Gauge lengths can be as short as 3 mm or as long as 50 mm. A newly designed gage setting pallows the gauge length to be set accurately and repeatably to ASTM and ISO requirements for all gauge. Reengineered quick attach wire forms provide simple and secure specimen attachment. Wire forms for round specimens are included, as well as flat, 3-point, and vee knife edges. The wire forms may be removed to enable using elastic bands or springs. A tethering attachment point provides fall protection and enables extensometer’s weight when testing delicate specimens. Model 3442 extensometers are strain gaged devices, making them compatible with any electronics designed gaged transducers. Most often they are connected to a test machine controller and Epsilon will equip the extension a compatible connector wired to plug directly into the controller. For systems lacking the required electronics provide a variety of solutions for signal conditioning and connection to data acquisition systems, chart record equipment.
• May be left on through specimen failure.
• Gauge length pin helps set gauge length accurately for all gauge length configurations.
• All models can measure in both tension and compression and can be used for cyclic testing.
• Mechanical overtravel stops in both directions.
• Rugged, dual flexure design for strength and improved performance. Much stronger than single flexure designs, thi
cyclic testing at higher frequencies.
• Standard units meet ASTM class B-1 requirements for accuracy. A test certificate is included. ISO 9513 class 0,5 te
available upon request.
• Gauge length adapter 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 -265℃ (-450°F) to +200℃ (400°F).
• Full bridge, 350 ohm strain gaged design for compatibility with nearly any test system.
• Includes high quality foam lined case