Hardness scale     

HL, HB, HRB, HRC, HRA, HV, HS

Memory               

48～600 groups （impact times: 32～1）

Measuring range                       

HLD（170～960）See below table 1 and table 2

Accuracy                                 

±6HLD (760±30HLD) error of displayed value

±6HLD (760±30HLD) repeatability of displayed value

Standard Impact Device          

D

Optional Impact Devices          

DC/D+15/G/C/DL

Max. Workpiece Hardness          

996HV(For Impact Devices D/DC/DL/D+15/C)

646HB(For Impact Device G)

Min. Radius of Workpiece    

Rmin = 50mm (with special support ring Rmin= 10mm)

Min. Workpiece weight          

2~5kg on stable support

0.05~2kg with compact coupling

Min. Workpiece thickness           

5mm (Impact Devices D/DC/DL/D+15)

1mm (Impact Device C)

10mm (Impact Device G)

Min. thickness of hardened surface  

Min. thickness of hardened surface  0.8mm

Power                                  

Normal AA Battery

Continuous Working time         

approx. 100 h (no back light off)

Operating temperature            

0~40℃

Relative humidity               

≤90%

Overall dimensions                   

125*67*31mm (main unit)

Weight   (main unit)             

0.3kg