Standards: EN 12390-14, EN 13412, EN 13286-43, ASTM C469, ISO 6784, BS 1881:121, DIN 1048, UNI 6556
Made of two anodized aluminium pieces, one fixed and the other sliding and housing a displacement transducer that measures with high accuracy the movement of two conical points made of hardened steel and attached at the two ends of the electronic sensor.
An aluminium template (optional mod C134-10) is used to regulate and to calibrate the base length.
The two conical points are coupled to the surface of the sample with a rapid and simple attachment system by means of two adjustable elastic straps.
The instrument is equipped with a mechanical knob to lock and unlock the displacement transducer, allowing to safeguard the selected base length while attaching of the device to the sample.
Normally the test is performed on cylinders by using 3 extensometers/ compressometers, and on cubes or beams by using 2 or 4 instruments.
The extensometer is suitable to test cubes, cylinders and beam specimens, having minimum height of 130 mm It is also possible to test mortar prisms 40x40x160 mm by using a block for reducing length.
Gauge length adjustable from 50 to 160 mm
Feeding up to 10 V
Travel: ± 1.5 mm
Sensitivity less than 0.01 micron
Supplied complete with reducing block for mortar prisms, elastic straps, carrying case.
Weight: 1000 g approx.