Produced by Guangzhou Landtek Instrument Co., Ltd., Leeb Hardness Tester, modelHM-6560, has been inspected by South China National Center of Metrology, Guangdong Institute of Metrology. The report shows that multiple indicators are in line with the standard requirements, the meter is unanimously approved by the relevant agencies, as the excellent product with reliable quality and perfect technology.
Related inspecting indicator and inspecting results are as follows:
1. Appearance: Pass
2. Technical Characteristics:
Table 1 Indication of Impact
| Measure Results of 0° | Measure Results of 90° |
| Cone-apex Radius(3 mm±0.004 mm) | 3.0039 mm | 3.0030 mm |
| Roundness(0.004 mm) | 0.0028 mm | 0.0030 mm |
| Actual Value |
| Quality of Impact (5.5 g±0.2 g) | 5.407 g |
Table 2 Indiction of Hardness Tester
| Hardness Scale | MPE(Error/Repeatability) | Error | Repeatability |
| HLD | ±12 HL / ≤ 12 HL | +3 HL | 10 HL |
The inspection basis: JJG 747-1999 V.R. of Leeb Hardness Tester
Please rest assured to purchase.
The Leeb Hardness Testers of our manufacturing, have all passed through the precise measurement, and strict producing control, so that won the vast numbers of users. The relevant products include: HM-6561, HM-6580
