SH-22 spec

Model name Handy hardness tester SONOHARD ® SH-22 type
Measurement indenter Micro Vickers Diamond Indenter
Frequency Manual probe: about 38 to 40 kHz
Measurement load SH-22-E1: 10 N (about 1 kgf) 
SH-22-E2: 20 N (about 2 kgf) 
SH-22-E4: 40 N (about 4 kgf)
SH-22-S005: 1N (approximately 0.1 kgf)
Measuring range Vickers hardness: 100 to 1000 HV
Rockwell C hardness: 10.0 to 70.0 HRC
Rockwell B hardness: 60.0 to 100.0 HRB
Shore hardness: 20.0 to 100.0 HS
Brinell hardness: 85 to 550 HBW
Vickers hardness: 400 to 1000 HV
(Hardness value in scales of HRC, HRB, HS, HBW
are also indicated fore reference)
Reproducibility
(with measuring stand)
Vickers Hardness: ± (3% rdg) HV
Rockwell C Hardness: ± 1.0 HRC
Rockwell B Hardness: ± 2.0 HRB
Shore Hardness: ± 1.0 HS
Brinell Hardness : ± (3% rdg) HBW
Vickers hardness: ± (5% rdg) HV
Nonlinearity
(with measuring stand)
200 to 1000HV± (5% rdg)HV
(Measuring on stadard block)
400 to 1000HV± (5% rdg)HV
(Measuring on stadard block)
Measurable tolerance angle Within ± 3 °