This instrument is used for testing furnaces or induction heaters. This specific model was designed for low strain applications for use with split type materials. Mounting is done with the help of a sliding bracket and it features a very low specimen contact force. Working at high temperatures is possible, this is done with help of water cooling which allows use to 1200°C (2200°F) standard or 1600°C (2900°F). The instrument employs an innovative design to achieve high accuracy strain measurements in low measuring ranges which is not possible with other high temperature extensometers. The extensometers in this device use a high temperature capacitive sensors. The sensors are mounted on slide brackets which are included that can attach to to the load frame of the test system. Optional load frame mounting brackets are also available. High purity alumina rods are used for supplying a standard temperature version (to 1200 °C).
Alumina rods are made to order to the length depending upon the requirement of the furnace.