Hardness Tester MH210 à¤Ã×èͧÇÑ´¤ÇÒÁá¢ç§ Hardness Tester MH210 Introduction: 1. Compact metal case, suitable for use under poor working conditions. Test at any angle, even upside and down. 2. Wide measuring range. It can measure the hardness of all metallic materials. Direct display of hardness scales HRB, HRC, HV, HB, HS, HL 3. Large screen(128*64 dot matrix LCD), showing all functions and parameters. With EL background light. 4. Software calibration function. 5. Software to connect with PC via RS232 port. Micro printer support. 6. Outline: 132*76.2mm Weight: 345g Technical Specifications: Error and repeatability of displayed value No. Type of impact device Hardness value of hardness block Error of displayed value Repeatability 1 D 760+-30HLD 530+-40HLD +-6 HLD +-10 HLD 6 HLD 10 HLD 2 D 50+-5 HLC 30+-6 HLC +-1 HRC +-2 HRC 1 HRC 2 HRC 3 D 700+-30HB 500+-40HB +-5 HB +-8 HB 5 HB 8 HB 1. Measuring range: (170-960)HLD, (17-68.5)HRC, (19-651)HB, (80-976)HV, (30-100)HS, (59-85)HRA, (13-100)HRB 2. Measuring direction: 360° 3. Hardness Scale: HL, HB, HRB, HRC, HRA, HV, HS 4. Display: dot matrix LCD, 128*64 dots 5. Data memory: max. 500 groups(relative to impact times 32-1) 6. Working voltage: 3V(2 AA size alkaline battery) 7. Continuous working period: about 50 hours(With backlight off) 8. Communication interface: RS232 Main Application: 1. Die cavity of molds 2. Bearings and other parts 3. Failure analysis of pressure vessel, steam generator and other equipment 4. Heavy work piece 5. The installed machinery and permanently assembled parts. 6. Testing surface of a small hollow space 7. Material identification in the warehouse of metallic materials 8. Rapid testing in large range and multi-measuring areas for large-scale work piece Testing range: Other type of impact devices Material Method Impact device D/DC D+15 C G E DL Steel and cast steel HRC 20-68.5 19.3-67.9 20.0-69.5 22.4-70.7 20.6-68.2 HRB 38.4-99.6 47.7-99.9 37.0-99.9 HRA 59.1-85.8 61.7-88.0 HB 127-651 80-638 80-683 90-646 83-663 81-646 HV 83-976 80-937 80-996 84-1042 80-950 HS 32.2-99.5 33.3-99.3 31.8-102.1 35.8-102.6 30.6-96.8 Cold work tool steel HRC 20.4-67.1 19.8-68.2 20.7-68.2 22.6-70.2 HV 80-898 80-935 100-941 82-1009 Stainless steel HRB 46.5-101.7 HB 85-655 HV 85-802 Grey cast iron HRC HB 93-334 92-326 HV Nodular cast iron HRC HB 131-387 127-364 HV Cast aluminium alloys HB 19-164 23-210 32-168 HRB 23.8-84.6 22.7-85.0 23.8-85.5 BRASS(copper-zinc alloys) HB 40-173 HRB 13.5-95.3 BRONZE(copper-aluminium/tin alloys) HB 60-290 Wrought copper alloys HB 45-315 Available type of impact device DC: Test hole or hollow cylindrical D+15: Test groove or reentrant surface C:Test small, light, thin parts and surface of hardened layer G: Test large, thick, heavy and rough surface steel E: Test super high hardness material DL: Test slender narrow groove or hole