Hardness scales |
HLD, HB, HRC, HRB, HV, HS |
HLC, HB, HRC, HRB, HV, HS |
HLDL, HB, HRC, HRB, HV, HS |
Min. radius of Work piece
(convex/concave) |
Rmin = 11mm (with support ring Rmin= 10mm) |
Rmin=11mm |
Rmin = 50mm (with support
ring Rmin= 10mm) |
Min. Work piece weight |
2~5kg on stable support
0.05~2kg with compact coupling |
0.5~1.5kg on stable support
0.02~0.5kg with compact coupling |
2~5kg on stable support
0.05~2kg with compact coupling |
Continuous working time |
300 h (without backlight) |
300 h (without backlight) |
300 h (without backlight) |
Power |
Batteries 3V Lithium CR1/2 AA |
Batteries 3V lithium CR1/2 AA |
Batteries Lithium CR1/2 AA |