Technical Specifications
| Hardness scale | HL, HB, HRB, HRC, HRA, HV, HS |
| Memory | 48 to 600 groups (impact times: 32 to 1) |
| Measuring range | HLD (170 to 960) See below table 1 and table 2 |
| Accuracy | ±6 HLD (760 HLD ± 30 HLD) error of displayed value |
| Standard Impact Device | D |
| Optional Impact Devices | DC /D +15 / G / C / DL |
| Min.Radius of Workpiece | R min = 1.96 in (50 mm)(With special support ring Rmin= 0.39 in (10 mm)) |
| Min. Workpiece weight | 4.40 lb to 11.02 lb (2 Kg to 5 kg) on stable support / 0.11 lb to 4.40 lb (0.05 to 2 kg) with compact coupling |
| Min. Workpiece thickness | 0.19 in (5 mm) (Impact Devices D / DC / DL / D + 15) / 0.039 In (1 mm) (Impact Device C) / 0.39 in (10 mm) (Impact Device G) |
| Min. thickness of hardened surface | 0.3 in (0.8 mm) |
| Power | Normal AA Battery |
| Continuous Working time | Approx 100 hrs (no back light off) |
| Operating temperature | 32 °F to 104 °F (0 ℃ to 40 ℃) |
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