Description
Overview
GAOTek manual probe ultrasonic hardness tester are many types of hardness testing methods, commonly used methods include HB, HRC, HV, HL, etc. But all these methods have boundness. The test force of HB and HRC is strong, so the indentation is big, and the damage to the surface is obvious. HV is tested by optical method, which needs very professional and technical personnel to operate, and cannot directly test large workpiece. And our ultrasonic hardness tester uses ultrasonic contact impedance method to compare and test patterns, this new method brings advantages of high precision, fast speed, portable, easy operation, etc.
Technical Specifications
| Range | HV 50 to 1599, HR 20 to 76, HB 76 to 618, HRB 41 to 100, HRB 41 to 100, HRA 61 to 85.6, Mpa 255 to 2180 |
| Test Error | HRC: ± 2 HRC; HB: ± 3% HB; HV: ± 3% HV |
| Maximum allowable relative error | Hardness of standard test block |
| <250 HV | |
| 250 HV to 500 HV | |
| >500 HV to 800 HV | |
| >800 HV | |
| Probe test force | 2 kgf (optional 0.5 kgf, 1 kgf, 5 kgf, 10 kgf) |
| Working temperature | 68 °F to 122 °F (20 ℃ to 50 ℃) |
| Working humidity | <=85% |