DIGITAL PORTABLE HARDNESS TESTER HLN-11A
Rockwell B and C, Vickers, Brinell, Shore and HL
The ROCKY TM HLN-11A
Is an advanced hand-held hardness tester distinguished by its high accuracy, wide measuring range, and simplicity of operation. It is suitable for testing the hardness of all metals, and can be applied in many areas of industry.
The measuring principle is defined as the quotient of the impact body's rebound velocity over its impact velocity. An impact body with a spherical test tip made of Tungsten Carbide is propelled against the test-piece surface by the force of a spring and then rebounds back. A permanent magnet is contained within the impact body, when this passes through the coil in its coil holder, it induces a voltage proportional to the velocity of the impact body.
270 x 86 x 47mm
650gr (including impact device and printer)
Electronics: -10 to +45 �C Impact device: -20 to +120 �C
(With universal impact device D) HRC 20-68; HRB 13-100; HB 30-650; HV 80-980; HSD 32-100; HL 200-900. For detailed information on all impact devices D/DC/D+1 15/G/C/E: see additional leaflet
0b from 370 to 2000 [106 N/M2]