Testing Instrument
Hardmatic เครื่องวัดความแข็งแบบพกพา Hardmatic HH-411 SERIES 810 — Rebound Type Portable Hardness Tester
Specifications Order No.
810-299 (JIS), 810-298 (ASTM)
Model
HH-411
Detector
Impact hammer with integrated detector and carbide-ball tip (D type: conforming to ASTM A 956)
Display unit
7-segment LCD
Hardness display range Display range (This display range varies depending on the conversion table used.)
Leeb hardness: 1 to 999HL
Vickers hardness: 43 to 950HV, Brinell hardness: 20 to 894HB Rockwell hardness (C scale): 19.3 to 68.2HRC Rockwell hardness (B scale): 13.5 to 101.7HRB
Shore hardness: 13.2 to 99.3HS, Tensile strength: 499 to 1996MPa Automatic angle correction Offset Pass or fail decision function Data save: 1800 Points Conversion (details in display range) Statistical calculation function Auto-sleep Dotting count display
Function
Min. 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 points Specimen surface roughness: Ra of 2µm or less
Specimen requirements
Digimatic interface Serial interface (RS-232C)
Output
Power supply
Alkaline AA battery 2pcs or optional AC adapter (battery life: 70 hours)
Detector: ø28×175mm in length, 120g Display: 70(W)×110(D)×35(H)mm, Approx. z200g
External dimensions/Mass
* 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.
Leeb Hardness Tester เครื่องวัดความแข็งแบบพกพา
Portable hardness tester for measuring hardness of metals
• Measuring hardness of metal
• Body : ABS
• Suitable for general metal hardness testing. Excellent for high volume use. • Can be converted to display in any of 6 hardness scales - HRC ` HV ` HL ` HRB ` HS ` HB • Average can be automatically calculated for between 2 to 8 measurements. • Includes software for recording measured values to PC • DL stylus for measuring hardness in narrow spaces such as the bottom of groove in a large gear. (LHT-300DL)
DIMENSIONS Unit : mm
• Material for test : Steel • Cast steel • Alloy tool steel • Stainless steel • High temperature steel • Cast iron • Ductile iron • Aluminum alloy • Brass • Bronze • Copper
Measuring Range (mm) Minimum 174 to maximum 900HL
Resolution Accuracy (mm)
Order No. LHT-300D LHT-300DL
0.1
• Master block • AC adapter • USB cable • Dedicated software • DL Stylus (LHT-300DL only)
within ± 17HL
0.1 ※ For D gague head, HL units within range. Unit of measure varies depending on material to be measured.
JSR Entech Catalogue 501 jetco@jet.co.th
jet@jet.co.th
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