... tester 1.The main features automatic closed-loop force sensor control system 10 class Test force selection, 14 class test scale robust construction ... microscope: 1 set4. technical data Measuring range: 4-650HBW Test force: 612.9, 980.7, 1225.9, 1838.8, 2451.8 ... ,125,187.5,250,500,750,1000 1500, 3000 kilogram Force)Specimen to allow a maximum height: 240 mm Indenter center ...