The tester is a special instrument for measuring the expansion of coal, which is an important index to characterize the cohesiveness of coal. It meets the GB/T5450-2014 standard.
·The control system adopts advanced control technology, high temperature control precision;
·The software has temperature and displacement correction functions. Operating parameters, displacement curve of the expansion rod and temperature control curve can be displayed on the screen;
·According to the displacement curve of expansion bar, softening temperature (T1), starting expansion temperature (T2) and curing temperature (T3) are automatically judged, maximum shrinkage (a) and maximum expansion (b) are automatically calculated.