M-9MHardness Testing MachinesStart quality control from the material — Mitutoyo's hardness testing machines can handle itMitutoyo operates a policy of continuous improvement that aims to provide the customer with the benet of the latest technological advances.Therefore the company reserves the right to change any or all aspects of any product specication without notice.HARDMATIC HH-411SERIES 810 — Rebound Type Portable Hardness Tester SPECIFICATIONS•Excellent operability that performs hardness tests with the touch of a key and a compact body allows users to measure hardness at any elds. This instrument is best suited for on-site hardness tests such as large molds, railroad track, and welded spots in structures. Order No.810-299 (JIS), 810-298 (ASTM)Model HH-411DetectorImpact hammer with integrated detector and carbide-ball tip (D type: conforming to ASTM A 956)Display unit7-segment LCDHardness display rangeLeeb hardness: 1 to 999HLDisplay range(This display range varies depending on the conversion table used.) Vickers hardness: 43 to 950HVBrinell hardness: 20 to 894HBRockwell hardness (C scale): 19.3 to 68.2HRCRockwell hardness (B scale): 13.5 to 101.7HRBShore hardness: 13.2 to 99.3HSTensile strength: 499 to 1996MPaFunctionAutomatic angle correctionOffsetPass or fail decision functionData save: 1800 PointsConversion (details in display range)Statistical calculation functionAuto-sleepDotting count displaySpecimen requirementsMin. specimen thickness of 5mm or more and mass of 5kg or more(However, a specimen of mass of 0.1 to 5kg is measurable by securing to a massive base)Testing point: 5mm or more from edge of specimen, 3mm or more between testing pointsSpecimen surface roughness: Ra of 2µm or lessOutputDigimatic interfaceSerial interface (RS-232C)Power supplyAlkaline AA battery 2pcs or optional AC adapter (battery life: 70 hours)External dimensions/MassDetector: ø28×175mm in length, 120gDisplay: 70(W)×110(D)×35(H)mm, Approx. z200g* For elastic materials such as rubber, measurement cannot be performed.The principle behind the Leeb hardness test is that the hardness is obtained by the rebound behavior of an impact hammer after a light blow on the specimen.Therefore be aware that the test results are susceptible to the effect of the size (especially thickness) and surface roughness of a workpiece.An inspection certicate is supplied as standard. Refer to page X for details.Refer to the Hardness Testing Machines (Catalog No. E17001) for more details.


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